Flowering period, April and May.
Showy Crowfoot; Nat. Ord. Ranunculaceæ.
This is another double yellow form of the Buttercup. It has only recently come into my possession. The blooms are very large and beautiful, double the size of R. acris fl.-pl., and a deeper yellow; the habit, too, is much more dwarf, the leaves larger, but similar in shape.
Flowering period, April to June.
All the foregoing Crowfoots are of the easiest culture, needing no particular treatment; but they like rich and deep soil. They may be increased by division at almost any time, the exceptions being when flowering or at a droughty season.
Californian Cone-flower; Nat. Ord. Compositæ.
This, in all its parts, is a very large and showy subject; the flowers are 3in. to 6in. across, in the style of the sunflower. It has not long been grown in English gardens, and came, as its name implies, from California: it is very suitable for association with old-fashioned flowers, being nearly related to the genus Helianthus, or sunflower. It is not only perfectly hardy in this climate, which is more than can be said of very many of the Californian species, but it grows rampantly and flowers well. It is all the more valuable as a flower from the fact that it comes into bloom several weeks earlier than most of the large yellow Composites. Having stated already the size of its flower, I need scarcely add that it is one of the showiest subjects in the garden; it is, however, as well to keep it in the background, not only on account of its tallness, but also because of its coarse abundant foliage.
It grows 4ft. to 6ft. high, the stems being many-branched. The flowers have erect stout stalks, and vary in size from 3in. to 6in. across, being of a light but glistening yellow colour; the ray is somewhat unevenly formed, owing to the florets being of various sizes, sometimes slit at the points, lobed, notched, and bent; the disk is very bold, being nearly 2in. high, in the form of a cone, whence the name "cone flower." The fertile florets of the disk or cone are green, and produce an abundance of yellow pollen, but it is gradually developed, and forms a yellow ring round the dark green cone, which rises slowly to the top when the florets of the ray fall; from this it will be seen that the flowers last a long time. The leaves of the root are sometimes a foot in length and half as broad, being oval, pointed, and sometimes notched or lobed; also rough, from a covering of short stiff hairs, and having once-grooved stout stalks 9in. or more long; the leaves of the stems are much smaller, generally oval, but of very uneven form, bluntly pointed, distinctly toothed, and some of the teeth so large as to be more appropriately described as segments; the base abruptly narrows into a very short stalk. The flowers of this plant are sure to meet with much favour, especially while the present fashion continues; but apart from fashion, merely considered as a decorative subject for the garden, it is well worth a place. There are larger yellow Composites, but either they are much later, or they are not perennial species, and otherwise this one differs materially from them.
I need not say anything respecting this form of flower in a cut state—its effectiveness is well known. If planted in ordinary garden loam it will hold its place and bloom freely year after year without further care. Smaller subjects should not be set too near it; it may be unadvisable to plant too many clumps in the same garden, but it can be allowed to spread into one bold patch. The best time to divide or transplant is in early spring, when growth is just pushing, for vigorous as this and many other perennials are, I have often found them to rot, when the dormant roots, after being cut into pieces, have had to face the winter.
Flowering period, July to September.
Late Cone-flower; Nat. Ord. Compositæ.
This hardy American species, though not an old plant in English gardens, is nevertheless classed with "old-fashioned" plants and flowers; and certainly its sombre but pleasing dark golden ray flowers, together with its likeness to many of the old sunflowers, favours such classification. It is the latest of a late-flowering genus.
It attains the height of 2ft.; the root leaves are of irregular shape, some oval and pointed, others, on the same plant, being lance-shaped, with two or three large teeth or acute lobes; in size the leaves also vary from 3in. to 8in. long, and being covered with short bristly hairs, they are very rough, also of a dull green colour; the flower stems have but few leaves, so it will be judged that the plant has but a weedy appearance, but this is compensated for by the rich and numerous large dark orange flowers, 3in. across; the ray is single, and the centre, which is large and prominent, is a rich chocolate brown.
This subject, to be effective, should be grown in large specimens; mine is about 3ft. in diameter, and the level mass of flowers, as I have often noticed them in twilight, were grandly beautiful. I can well understand that many have not cared for this cone flower when they have judged it from a small plant which has sent up its first, and perhaps abnormal, bloom. It is especially a subject that should be seen in bold clumps, and in moderately rich soil it will soon become such. Moreover, the flowers are very effective in a cut state, when loosely arranged in vases, only needing something in the way of tall grasses to blend with in order to form an antique "posy."
Autumn is the best time to plant it; its long roots denote that it enjoys deep soil, and, when planted, the roots of this, as well as all others then being transplanted, should be made firm, otherwise the frost will lift them out and the droughts will finish them off. Many plants are lost in this manner, and, indeed, many short-rooted kinds are scarcely saved by the greatest care. The stem-rooting character of this plant affords ready means of propagation by root divisions.
Flowering period, from September till strong frosts.
Wrinkled or Netted Willow; Nat. Ord. Salicaceæ.
A native deciduous shrub, of creeping or prostrate habit, not growing higher than 2in. As the flowers are inconspicuous and only interesting to the botanist or when under the microscope, let me at once say I mention this subject because of its beautiful habit and distinct quality of foliage. When grown on rockwork, no other plant can compare with it, and where choice spring bulbs are planted, this handsome creeper may be allowed, without injury to such roots, to broadly establish itself; so grown, its little stout leaves, thickly produced, flatly on the surface, are much admired.
The flowers or catkins stand well above the foliage, but are unattractive, being of a dusky brown colour; the leaves are dark green, downy, of much substance, 1½in. long, and nearly 1in. broad, but the size of foliage varies according to the conditions under which the specimens are grown; the sizes now referred to are of plants grown on rather dry rockwork and fully exposed; the form of the leaves is orbicular, obtuse, not in the least notched, bald, reticulately veined, and glaucous beneath; the stems are short and diffuse, and tinged with red on the younger parts.
During winter, when bare of foliage, its thick creeping stems, covered with fat buds and interlaced in a pleasing manner, render it interesting in almost any situation not shaded. It forms a capital carpet plant from early spring to the end of summer.
It is in no way particular as regards soil, and though it loves moisture, like most other willows, it proves thriving in dry places. It is, moreover, a good grower in large towns. Its propagation may be carried out before the leaves unfold in spring. Little branches with roots to them may be cut from the parent plant, and should be set in sandy loam and watered well to settle it about the roots.
Flowering period, September to strong frosts.
Bloodroot; Nat. Ord. Papaveraceæ.
This is a native of North America, and is, therefore, hardy in this climate; tuberous rooted. It is a curious plant, not only from its great fulness of sap or juice, which is red (that of the root being darker, whence its name Bloodroot), but also because of the shape of its leaves, their colour, and method of development (see Fig. 81). Though very dwarf, it is handsome and distinct.
The flowers are pure white and nearly 2in. across; the petals have good substance, but they fall in five or six sunny days; the stamens are numerous and bright yellow. Though belonging to the order of the Poppy, it is in many respects unlike it; each flower stem, which is 6in. high, springs directly from the root, and only one flower is produced on a stem; the leaves are also radical, so that the plant is branchless and stemless; the leaf stalks are rather shorter than those of the flowers. The foliage is of a slate-grey colour, prominently veined on the under side, the upper surface being somewhat wrinkled; the leaves are 3in. across when fully developed, vine-leaf shaped, deeply and beautifully lobed; their development is slow, not being completed until the bloom is past. Both leaves and flowers are produced in a curious fashion; for a time the flower-bud is compactly enfolded by a leaf, and so both grow up to the height of 2in. or 3in., when the former pushes through, and soon swells its olive-shaped buds. At this stage a good specimen clump is very attractive, and is only more so when the fine blooms first open.
It should be grown amongst some such carpeting plants as Sibthorpia Europæa or Linaria pilosa, so as to protect it; moreover, these creepers are suited for a similar soil and position. The soil should be light, either of sandy or vegetable character, but one that cannot bake; shade from the midday sun is essential, as also is plenty of moisture. When the growths have become crowded, as they do in about three years, it is as well to lift, divide, and replant at a distance of 3in.; this is best done after the tops have died off in summer; plant 4in. or 5in. deep.
Flowering period, April and May.
Rock Soapwort, or Basil-leaved Soapwort: Nat. Ord. Silenaceæ.
A very hardy alpine from France, and one of the most floriferous subjects that can be placed on rockwork, where should be its position. During a single season it is no uncommon thing to see a small plant grow into a large cushion 2ft. in diameter, and only 6in. or 9in. high. In planting it this fact should not be overlooked, not only for the sake of giving it plenty of room, but also in order that less vigorous subjects near it may not become overgrown; it blooms all summer, and though the flowers are small and not at all bright, their numbers render it attractive.
The flowers, which are about ½in. across, are of a pink colour, and produced on many-branched prostrate stems; the calyx is five-toothed; the corolla is formed of five flat petals; the leaves are small, basil-like, oval-lance shaped, entire and smooth; the general appearance of the plant when in bloom is that of a compact mass of small leaves and flowers, the latter predominating.
It will grow in any kind of soil, but prefers that of a vegetable character, with its roots amongst large stones; but, strictly speaking, it needs nothing but an open situation and plenty of room to spread. It ripens an abundance of seed, and there is not a better mode of propagation than its own; hundreds of stout seedlings appear the following spring around the parent plant, and these may then be transplanted, and they will flower the same season.
S. o. splendens is a variety of the above very much improved indeed; and though one cannot discard the good old plant for its very recent offspring, the former is certainly very much eclipsed. Splendens has foliage slightly different, but its flowers are much larger and brighter; and though it may not be quite so vigorous, in this case that may be considered an improvement. It is said to come true from seed.
Flowering period, May to August.
Burser's Saxifrage; Nat. Ord. Saxifragaceæ.
A hardy evergreen alpine. A native of Carniola, not long discovered, and quite new to English gardens. Though it belongs to a very extensive genus, it is a distinct species; many of the Saxifrages are not so, neither are they sufficiently decorative to merit a place in any but large or scientific gardens. This one, however, is a truly handsome kind, and its flowers are produced amid the snow and during the bleak and dull weather of mid-winter.
The plant in form is a dense cushion of little spiked rosettes, of a dark green colour, slightly silvered. The flowers are produced on bright ruddy stems 3in. high, and are creamy white, nearly the size of a sixpence. Small as the plant is, a moderate sized specimen is very attractive, especially before the flowers open, when they are in their prettiest form. They open slowly and endure nearly two months.
It enjoys light soil and a well drained situation, such as the edge of a border, where strong growing kinds cannot damage it, or on rockwork, where it will be fully exposed to the sun. To be effective, it should be grown into strong clumps, which may easily be done by annually giving a top-dressing of leaf-mould; the older parts of the plant will remain perfectly sound and healthy for years. When it is desirable to propagate it, it may best be done in April, when the tufts should be carefully divided, and its short roots made firm in the soil by one or two stones being placed near.
Flowering period, January to April.
Silver Moss, or Grey Saxifrage; Nat. Ord. Saxifragaceæ.
One of the alpine gems. This has been grown in English gardens since 1752, yet good specimens are rarely met with, though its culture is simple and easy. It is found wild on the Alps of Switzerland, Austria, and the Pyrenees. To the lover of the minute forms of genuine alpine plants, this will be a treasure; it is very distinct in form, habit, and colour. Its tiny rosettes of encrusted leaves can scarcely be said to rise from the ground, and the common name, "silver moss," which it is often called by, most fittingly applies; but perhaps its colour is the main feature of notice. The meaning of its specific name is grey, to which it certainly answers; but so peculiar is the greyness that a more definite description may be useful, in giving which I will quote that of Decandolle and Sprengle: "The lavender-blue is a pale blue (cæsius); it is mixed with a little grey." This exactly answers to the colour of the pretty Saxifrage under notice, and it is far from a common one in foliage.
The flowers differ but slightly from those of other encrusted forms of the genus, but they are a creamy white, arranged in small panicles on short and slender stems. They are sparingly produced in May and June. The leaves are ¼in. long, aggregate or in miniature rosettes; in shape, linear-oblong, recurved, and keeled. The upper surface is concave, having marginal dots, evenly disposed; the dots are bright and excavated, and some of the leaves (those of the stems) are scale formed. The glaucous or lavender-blue colour is beautifully enlivened with the crystal dots. Its habit reminds one of the more distinct forms of lichens, and, when it is grown with suitable companions on rockwork, it has a happy way of showing and adapting itself in such situation; besides, its colour then shows with more effect.
There is a variety of this species not yet in general cultivation, and it cannot be too strongly recommended to lovers of the finest forms of rock or alpine plants. It is called S. c. major (see Fig. 82). The name at once suggests the main difference from the type, but there are other features quite as marked as that of its extra size in all its parts; the foliage is more crowded, which seems to cause the largest leaves to become more erect, and the habit, too, perhaps from the same cause, is ball shaped; the small rosettes of thick encrusted leaves, from the manner in which they are packed together, form a rigid mass, which differs widely both in detail and effect from any other Saxifrage I know.
These dwarf subjects are best suited for rockwork; but another plan, now much practised, is to grow them in pots. This in no way implies that protection is given or needed—these sturdy subjects are far better fully exposed—but the pot system has advantages; when so planted, the roots are more likely to be placed in a better selected compost, and the specimens can be raised in order to examine their miniature beauties. The above kinds enjoy a gritty vegetable soil; perfect drainage is indispensable. These are not among the Saxifrages that are readily propagated; a few crowns or rosettes with short pieces of stem are not sure to root, and if more careful division is not carried out, perhaps but two or three growing bits from a large specimen may be the result, so lessening instead of increasing the stock. Before cutting let the roots be washed clear of soil, trace the long roots, and so cut up the plant that each division will have a share of them. Sometimes a rather large specimen will have but few of such roots, in which case it will prove the better and safer plan to make only a corresponding number of divisions, so making sure of each. A further help to such newly planted stock is gained by placing small stones about the collars; this keeps the plants moist and cool during the dry season, when (after flowering) the divisions should be made.
Flowering period, May and June.
Horn-leaved Saxifrage; Nat. Ord. Saxifragaceæ.
For the most part, this numerous genus flowers in spring and early summer, the species now under notice being one of the late bloomers; its flowers however, like most of the Saxifrages, are small and insignificant; on the other hand, its foliage, as may be seen by the illustration (Fig. 83) is highly ornamental. In November, the grand half-globular tufts of rigid dark green foliage are delicately furnished with a whitish exudation, which, seen through a magnifying glass, resembles scales, but seen by the naked eye—and it can be clearly seen without stooping—it gives the idea of hoar frost. We have here, then, an interesting and ornamental subject, which, when grown in collections of considerable variety, proves attractive; and as even after many degrees of frost, it retains its beauty, and, I may add, its finest form, it may be confidently recommended as a suitable winter garden subject. This species proves evergreen in our climate, though a native of Spain, from which country it was imported about eighty years ago. It is sometimes called S. cornutum, a name quite applicable, and it is frequently confounded with S. pentadactylis (the Five-fingered-leaved Saxifrage), which it much resembles, from which, however, it is distinct in several respects.
Its flowers are small, white, and numerous, produced on slender stalks in summer; they are of the general type of the flowers of the mossy section, and need not be further described. The foliage forms rigid cushions, dense, rounded, and of a dark green colour in the early season; later it becomes grey, with an exudation; the leaves are arranged in rosette form, having stout stalks, channelled or folded on the upper surface; there are three deep divisions, and others less cut; the segments are subulate, bent back and tipped with horny mucrones, whence its specific name; these horn-like points are bent under, which, together with their transparency, renders them all but invisible; they can, however, be clearly seen if brought near the eye and looked for on the under side of the foliage. The leaves are of good substance, 1in. to 2in. long, having broad stipules; the stems are exceedingly slender in the older parts, and somewhat woody, having the appearance of being dried up and dead.
On rockwork it is seen in its best form, as the slope not only shows it off better, but is conducive to a finer growth. In flat places, the dense cushions, which are 6in. or 8in. high, often rot from too much moisture. I have never seen this occur in the drier positions afforded by the slopes of a rockery. If planted between large stones it has a happy way of adapting itself to them, and few plants are more effective. It thrives equally well in soil of a loamy or vegetable character, but it seems to enjoy a little limestone, small pieces of which I place round the specimens; they also serve to hold up the lower foliage and favour the admission of air. Where alpines are grown in pots this should form one, as it makes a charming specimen; the drainage should be perfect. It also makes a capital edging plant, especially for raised beds, as then it is accommodated in the same way as on rockwork.
It may be propagated by taking the slips nearest the earth, which will often be found to have a few rootlets, but if not they will still prove the more suitable; if taken in summer and dibbled into sand, they will make good roots in a week or two, when they may be transplanted to their permanent quarters, so as to become established before winter.
Hairy-margined Saxifrage; Syn. Megasea Ciliata; Nat. Ord. Saxifragaceæ.
This is a peculiar, distinct, and beautiful form of Saxifrage; there seems, however, to be some confusion in reference to its nomenclature. That it belongs to the Megasea section there can be little doubt, so that its synonym (M. ciliata) is fairly descriptive; but when it is said to be identical with S. ligulata, also of the Megasea section, the difficulty of recognising the form illustrated as such is very great indeed. It is also supposed to be a variety of S. ligulata, and though it has many important dissimilarities, it has also many affinities. So much does it differ from S. ligulata that it seems to be fully entitled to the specific honours which some authorities have given to it. It differs from S. ligulata, described by Don, in being rough and hairy on both sides of the leaves; in other respects it agrees, more especially in the colour of the flowers, which is uncommon. It may be the Megasea ciliata of Haworth, which Don refers to under S. ligulata, or it may be a distinct form of the latter, as, on the authority of Dr. Wallich, of the Botanical Gardens of Calcutta, the species has varieties. Wherever its proper place may be in its numerous genus, the name at the head hereof is a good descriptive one. It is an Indian contribution, hailing from the mountains east of Bengal. In this climate it endures our winters, though it is not one of the hardiest of its tribe. It has not long been cultivated in this country, and is rarely met with. Its distinct habit and fine flowers render it desirable, and it will with many be more so on the score of its peculiarities. A few of the latter may be mentioned here. Anthers very large, and brick-red before becoming pollenized; scapes and scape-sheaths nearly smooth, though all other foliar parts are hairy; stipules very large and fully developed whilst the leaves are in their rudimentary stage. When not in flower the plant has a strong resemblance to S. sarmentosa, which belongs to another section, but S. ciliata has features belonging to both sections. The habit, however, is more flat, and leaves more oval, and if, as has been hinted, this is a hybrid, it may not be without some relationship to that species, which is also of Asian origin. Further, on the authority of Murray, Sax. sarmentosa is identical with S. ligulata; so that, if we may suppose S. ciliata to be a distinct variety of S. ligulata, and the latter to have such affinity to S. sarmentosa that Murray puts it as identical, the chief difference between our subject and the form generally accepted as S. ligulata is accounted for, viz., the hairy and rougher surfaces of the leaves, which are traits of the well-known S. sarmentosa. If these remarks prove nothing, they may serve to show the difficulty of recognising the various forms and species of so popular a genus from reading alone, it having been so extensively treated of, and the classifications being so varied. Its study, when the species are being cultivated, is simply delightful, compared with the confusion of book study alone; and yet it is no uncommon thing, when forming a collection of Saxifrages, to receive three or four different forms from different sources under the same name, and each perhaps more or less authorised. The student by growing this genus of plants will reap other pleasures than that of identification, and in a few years time will find in his own garden (as the outcome of growing allied species) new forms springing from seed, and scattered about the beds and walks in a pleasing and suggestive manner. (See Fig. 84.)
The present subject has bell-shaped flowers, arranged in short-branched panicles, each flower ¾in. across, and sometimes, when well expanded, quite an inch; the colour is a delicate pink-tinted white; petals obovate and concave, inserted in the calyx, clawed, sometimes notched and even lobed; stamens long as petals, inserted in throat of calyx, stout, green changing to pink; anthers large and brick red when young; styles massive, joining close together, turgid, nearly long as stamens, and pale green; stigmas, simple, beardless, turning to a red colour; calyx bell-shaped, five-parted, wrinkled; segments slightly reflexed and conniving or joining; scapes 4in. to 6in. high, stout and smooth, excepting solitary hairs; bracts, leaf-like; leaves oval or cordate, 2in. to 4in. long, wrinkled, slightly waved, and toothed, conspicuously ciliated or haired on the margin, whence the specific name "ciliata." Both surfaces are also furnished with short stiff hairs, the whole leaf being stout and flatly arranged; leaf stalks short, thick, and furnished with numerous long hairs, and ample stipules, which are glabrous, but beautifully ciliated. Roots, woody, and slightly creeping on the surface. Habit of foliage reflexing, forming flat masses; smaller or supplementary scapes are sent up later than the main scape, from the midst of the stipules, bearing flowers in ones and twos. The blossom, which is effective and very beautiful, is also sweetly scented, like the hawthorn.
As already hinted, this is not one of the most hardy Saxifrages, but I have twice wintered it out on gritty beds, well raised, also on rockwork, under a warm south wall; and, as such positions can be found or made in most gardens, it would be advisable to try and establish this distinct and lovely spring bloomer. Lime and sandstone grit mixed with loam and leaf soil I find to be the best compost I have yet tried for it; in fact, until a dry situation and a little lime were given, it proved a shy bloomer. It is now quite the reverse, notwithstanding that the roots were divided during the previous autumn. Fogs and rain are its greatest plagues, owing to its hairy nature; the glass and wire shelters should be used for this most deserving subject. Propagated by division of the woody semi-creeping roots during early autumn; each division should have a crown and some roots, when they may be planted in their permanent quarters.
Flowering period, March to May.
Nat. Ord. Saxifragaceæ.
A first-class herbaceous perennial, grown for over a hundred years in English gardens; it comes from Siberia, and consequently, it is very hardy in this climate. The Megasea section of the Saxifraga is a very distinct genus; there are several forms with but slight distinctions in the section, but the species now under notice may be readily distinguished from its nearest known relatives, first by its extra size in all its parts, next by its wrinkled heart-shaped leaves.
The flowers are produced on stout stems nearly a foot high, a section of which will cut the size of a sixpenny piece; the rose-coloured flowers are perfectly developed before they push through the many-times over-lapped foliage; they are neatly arranged, the branching stems sometimes giving the panicle of blossom the form and also the size of a moderate bunch of grapes. Just at this stage the flowers, to be most enjoyed, should be cut before the weather spoils their delicate colour. The fine pale green calyx, which is also conspicuous by its handsome form and extra length, is far from the least important feature of this flower, especially at the above-mentioned stage. The leaves are 6in. to 10in. across.
Of the use of its flowers in a cut state, a few words may be said. The weather soon destroys their beauty, but when cut they may be preserved for fully a fortnight. On one occasion I took a blossom and placed it in a flower stand for single specimen blooms; in this instance all the other glasses held such fine roses as Baroness Rothschild, Madame Lacharme, and Edouard Morren, but so richly did it compare with these roses that it was given the place of honour—the top centre glass; this flower I should say had never seen the full light in the open. After that others pushed out of the leaves and were speedily damaged, and not fit to cut.
Flowering period, March to May.
Nat. Ord. Saxifragaceæ.
This is a rather recently discovered alpine species, very dwarf, but beautiful. The specific name would appear to be in allusion to its flowers as pink-shaped; they are very small, but the reader, by referring to the cut (Fig. 85), may form his own opinion of such likeness; however well founded or otherwise the name may be, we have in this subject a gem for the rock garden. It is a native of Albania, and belongs to that section of its extensive genus having triquetrous and obtuse leaves, or blunt three-sided foliage, as formed by a well developed keel. It is in flower in the middle of March, at the height of 2in. All its parts are of miniature dimensions, and yet when grown in a suitable position it is effective.
The flowers are pure white, produced on leafy stems an inch or more high; they are few, and open in succession; petals round and overlapping; calyx large for the size of flower, and covered with down; sepals obtuse and tipped with a brown, almost red-tint; stamens short, having rather large yellow anthers, which fill the throat of the corolla. The leaves are evergreen or silvery grey, arranged in small rosettes, and ¼in. long, of good substance, rigid and smooth; their shape is obtuse, concave, and keeled; they are furnished with marginal excavations, which present themselves as dots; the habit is compact, the rosettes being crowded and forming cushioned-shaped specimens; the flowers last for a fortnight in average weather.
Between large stones in vegetable mould and grit, it both thrives and shows to advantage; it is also a charming subject for the pot culture of alpines. In company with the red-stalked and white-flowered S. Burseriana, the purple S. oppositifolia, and the many other forms of the mossy section, all, or nearly all in bloom about the same time, it offers a pleasing variety, as being distinct in every way from its contemporaries, more especially in the foliage. It is rather a slow grower, and not so readily increased as most Saxifrages; it is greatly benefited by having pebbles or small stones about the collar. These keep it moist at the roots during the growing season. If a little dry cow manure or guano is dusted amongst the stones during early summer, the results will soon be seen; such growth, however, should not be stimulated during the latter half of the year, or from its want of ripeness it will be liable to damage during winter. This practice of top dressing greatly assists the parts touching the earth to root, and so either an increased stock or larger specimens may sooner be obtained.
Flowering period, March.
Fortune's Saxifrage; Nat. Ord. Saxifragaceæ.
This, as may at once be seen by a glance at Fig. 86, belongs to the lobed-leafed section. It is as yet new in English gardens, and is often grown in pots in warm glasshouses. It is, however, perfectly hardy, having stood out with me in the open for the past three years. It is nearly related to S. japonica and its varieties, but is without the stolons or runners. In this climate, with outdoor treatment, it flowers in October until cut down by frost, which sometimes happens before the flowers get well out. It has been stated not only that it is not hardy, but that its flowering period is May. With me it has proved otherwise, and others have proved it to flower naturally in October. I also observed it in bloom in the Hull Botanic Gardens on the open rockwork in November, 1882. I have no doubt that autumn is the natural season for well-established plants to flower; weaker specimens may fail to push forth ere the frost cuts down their leaves, when the dormant buds must remain sealed for the winter, but ready to develope with the return of longer and warmer days.
The flowers are arranged in panicles on scapes nearly a foot high, the panicles being 6in. long and 3in. in diameter. The petals are long and narrow, of uneven length, and notched; colour pure white. The calyx is well developed; segments oval, notched at the ends; colour, pale apple green. Stamens, long and tipped with beautifully orange-coloured anthers. The ovary is prominent, and of a pale yellow. Besides the above features, the flowers, which mostly look sideways and are quite an inch across their broadest parts, have one very long petal at the low side, and the two next are at right angles with it, less than half its size, the two upper ones being still less; the effect is both unusual and pleasing. The leaf stalks are long, stout, and of a succulent nature, semi-transparent, and slightly furnished with longish hairs; the stipules are ample, and of a bright red, which colour extends for a short length up the stalk. The leaves are kidney-shaped, 2in. to 5in. across, eight or ten lobed, toothed and reflexed; they are furnished with solitary stiff hairs, are of good substance, and a very dark green colour, but herbaceous. The habit of this species is neat and very floriferous; therefore it is a valuable plant for in or outdoor gardening; but owing to its late season of flowering outside, the blossom is liable to injury. A bell glass, however, will meet the case; it should be placed over the plant, but tilted slightly, when there are signs of frost—the flowers will amply reward such care. If the bloom can be cut clean, a good cluster will vie with many orchids for delicacy and effect.
I find it to do well in fat loam, and with the same kind of soil in pots, which comes in for placing in cold frames when frost threatens. I find it one of the easiest plants possible to manage—in fact, it needs no care to grow it; still, many amateurs fail to keep it, I suppose from taking it into a warm greenhouse, where it is sure to dwindle. It is readily propagated by division of the crowns, which should be done in spring.
Flowering period, October until strong frosts.
Nat. Ord. Saxifragaceæ.
One of the large-leaved species (see Fig. 87) compared with others of the Megasea section, its leaves are strap-like, as implied by the specific name. It is sometimes called Megasea ciliata, but there is a large-leaved species, commonly called S. ciliata, which is very distinct from this one, and it is all the more important that they should not be confounded with each other, as S. ciliata is not very hardy, whilst this is perfectly so, being also one of our finest herbaceous perennials. It comes to us from Nepaul, and has not long been cultivated in this country.
Its flowers are produced numerously on bold stout stems 10in. high. Sometimes the flower-stem is branched. The pale but clear rosy flowers are not only showy, but very enduring, lasting several weeks. The leaves are six to ten inches long, of irregular form, but handsomely ribbed and wavy; the new growths are bright yellowish-green, and tinted from the edges with a reddish bronze, so that, during spring, besides being finely in flower, it is otherwise a pleasing plant to look upon. Moreover, it is one of the few bold kinds of plants which flower so early and therefore a most valuable subject for the spring flower-beds.
It looks well in any position, either near or back from the walks, in shrubs, or as a centre specimen for beds; it is also a plant that may be moved easily, as it carries plenty of root and earth, consequently it may be used in such designs as necessitate frequent transplantings. It is not particular as to soil or position, but in light earth, well enriched with stable manure, I have found it to thrive, so as to be equal to many of the so-called "fine foliage" plants during summer; therefore, I should say, give it rich food. To propagate it, a strong specimen with branched crowns should be selected. These branches or stems are ½in. to 1in. thick. They should be cut off with as much length as possible; if they have a bit of root, all the better; if not, it does not much matter. Let the cut end dry for a little time, take off half, or even the whole, of the largest leaves, or the action of the wind will prevent their remaining firm. When so prepared, the cuttings may be deeply planted in sandy loam, which has previously been deeply stirred. This may be done as soon as the flowers are past, and by the end of the year the cuttings should be well rooted and suitable for moving into the ornamental part of the garden.
Flowering period, March to May.
Long-leaved Saxifrage; Queen of Saxifrages; Nat. Ord. Saxifragaceæ.
Numerous and beautiful as are the species and varieties of this genus, this is the most admired of them all, from which fact it derives its proud name of "Queen." It is of recent introduction; habitat, the Pyrenees; but though of alpine origin, it thrives in lower, I may say the lowest, situations even in our wet climate. As will be seen by the illustration (Fig. 88), it belongs to the rosette section, and may indeed be said, for size and symmetry, to head the list. There are many forms of it, differing more or less in shape of leaves, colour, habit, and size of rosette. The original or reputed type is but an indifferent form compared with the one now generally accepted as the representative of the species. So readily do the various Saxifrages become crossed, that it is hard to distinguish them; and when a distinct form is evolved the question occurs, What constitutes or entitles it to specific honours? Surely the form of which we are speaking must be fully entitled to a name all its own, as it is not possible to find another Saxifrage that can so widely contrast with the whole genus.
It may be as well, in a few words, to refer to one or two varieties; and it shall only be from an amateur's point of view, whose estimate of their worth or importance is based entirely on their ornamental qualities under cultivation. Such varieties, as far as I know, have not had any name given them, descriptive or otherwise, and I for one have no desire to see any, as the genus is already overloaded with names.
There is, first, a form whose main distinction is its dark olive-green leaves; the ends are rather inclined to be spathulate, they are long, narrow, and arch well, rather nearer the centre of the rosette; this causes the end of the outer circle of leaves to come flat on the ground. The whole specimen has a sombre appearance compared with the more silvery kinds. The second form has broader leaves, is more distinctly toothed and spotted; as a consequence of their width, the leaves are fewer, and though all the varieties are very formal, this is the most so. When by the side of what we may term the true form, which has sometimes vera added to its name, this one has a plain and somewhat "dumpy" appearance, and frequently the tips of the leaves curl back, which further detracts from its ornamental quality. A third form has small rosettes, pale green foliage, indistinct silvery dots, and, worse than all, the habit of throwing out a progeny of young growths all round the collar, furnishing itself as with a ruff, when the parent rosette turns to a yellowish-green. Of all the forms this is the most constant bloomer. The favourite variety, to which an engraving can do but scant justice, is superior to the above kinds in all its parts. Its blooming period is in early summer, but specimens often grow in size and beauty for three or five years without producing flowers. The foliage is the more admired feature, and is at its greatest beauty in December.
The flowers are borne in handsome panicles, in the style of those of S. pyramidalis, which are about 18in. high. The blossom is of the kind common to this section. The leaves are long, narrow, toothed bluntly, and spotted with silvery dots; the whole leaf is greyish; the habit is rigid and of even arrangement; the rosettes are of all sizes, from 2in. to 10in. in diameter. At 3in. to 6in. they are attractive, and as they grow larger, they become conspicuous in their beauty. It is not desirable to have them flower, inasmuch as the rosettes are then destroyed, though the plants do not die. Of course, if a specimen "shows bloom" it cannot be helped, but rather than lose a season's produce of young stock I would nip out the "lead," and so cause offsets to be produced instead of flowers.
In the rock garden this is one of the most telling subjects that can be introduced; not only does it love to have its roots amongst the stones, but it is a form which harmonises and yet contrasts finely with such shapeless material, and, further, relieves the sameness of verdure of other plants in a more than ordinary degree. It will grow in borders or beds, but looks nowhere so well as on rockwork. True, its uses are limited, but then they are exceedingly effective. I have grown this subject in almost every kind of soil and compost, and it has done well in most; stiff clay-like loam appears too cold or wet for it; on the other hand, a sandy loam, mixed with leaf soil, grows it finely; perfect drainage is the desideratum, in no matter what position it is planted. It may be increased in various ways—1st, By seeds, which may be bought, as it is carefully harvested abroad; 2nd, from offsets, as already stated; and, 3rd, from offsets produced by cutting out the leaves in two or more parts, so as to let the light in at the collar. This method may seem heartless, and it certainly spoils the specimen; it is a mode to be followed only where there are spare old plants and young stock is needed.
Flowering period, June and July.
MacNab's Saxifraga; Nat. Ord. Saxifragaceæ.
This is a new and very beautiful variety, called after Mr. MacNab, who raised it in 1877. Of the several hundreds of species and varieties of this genus, it is doubtless one of the best and most distinct as regards its habit and rich flowers. So pronounced are its merit that, although I have not grown it for more than four years or so, I can have no hesitation in sounding its praise. It is possible that when it has become better established in the collections of amateurs and others, and when it has regained what may be termed its natural vigour, lost by the too rapid propagation common to new plants, it may prove to be even better than I have yet proved it. However that may be, there can at present be only one opinion respecting it.
The rosette foliage is in the style of S. longifolia and S. pyramidalis, intermediate; the flowers are quite distinct, but they remind one of the charming S. mutata, which is also a rosette form, having a fine panicle of blossom. It is said to be a seedling from S. Nepalensis crossed by S. cotyledon or S. pyramidalis, but, as the cross was accidental, there must be some uncertainty; both parents are evidently incrusted forms.
The flowers are ½in. across, corolla flat, petals richly spotted with numerous bright red spots; they are much shorter than the petals of most of the other incrusted varieties; they are also slightly reflexed in the more matured flowers; the calyx, too, is less hairy and the segments shorter than those of its reputed parents. The stem of my tallest specimen is not more than 15in. high; the panicle is large, beginning about four inches above the rosette. It is well branched, the flowers being clustered at the ends of the branchlets. The whole panicle will be about 10in. long and 6in. or 8in. through. As regards the foliage, I only need add to what has already been stated, that the leaves are arranged in somewhat lax rosettes, are strap, or tongue-shaped, evenly serrated, and, in the winter bright at the edges, with frosted or silvery markings; the flowers are so very attractive that casual observers readily recognise their beauties amongst hundreds of other Saxifrages, and they have not inaptly been compared with fine old china.
I ought not to omit mention of that rare quality possessed by this Saxifrage, viz., a rich perfume.
Though it is perfectly hardy, it may be grown in pots with great advantage, as then it can be the more closely examined; but if it is not convenient to grow it in that manner, it may be planted either on rockwork or in borders amongst choice things, where its flowers will not fail to command admiring notice. As to the kind of soil, it seems in no way particular. Sandy loam, mixed with peat, however, suits it well. It is propagated by offsets, but these are rarely produced in numbers, as is common with most of the incrusted Saxifrages. I may say that I have only met with one specimen which has thus proved useful in any degree worth notice, and it produced nearly a score of offsets during one season; it ripens much seed, which may, or may not come true.
Flowering period, June and July.
Nat. Ord. Saxifragaceæ.
A somewhat rare alpine species, evergreen, hardy, very distinct and beautiful. It is one of the rosette forms, after the style of S. pyramidalis, but there are several important variations about the plant, other than in the flowers, which are totally different. There are many peculiarities about this species, but they would hardly require to be noticed here were not the plant otherwise of great merit. When in bloom it is highly decorative, and the flowers in a cut state are unique.
The flower stem is 12in. to 18in. high, furnished with supplementary ones all its length; the lower ones are 8in. long, and spreading; they become shorter as they near the top, the whole forming a fine symmetrical panicle. The flowers are over ½in. across, petals awl-shaped, and, when first open, are nearly red; they change to dark orange and again to pale yellow; the calyx is very large, the sepals four times as broad as the petals and bluntly pointed; the stamens and anthers are coloured, and change like the petals; the ovary, which is very conspicuous, is a fine purple, but later, it, too, changes to a pink colour; the outer parts of the calyx and all the shorter flower-stalks, which are clustered at the ends of the supplementary stems, are greenish-yellow, and this feature of the plant adds much to its beauty. Calyx, stems, and stem-leaves are densely furnished with stiff gland-tipped hairs, rendering them clammy to the touch. The leaves of the rosettes are tongue-shaped, rough at the edges, fleshy, covered with glandular hairs, of a shining green colour, and slightly reflexed. The changeable nature of the flowers doubtless gives rise to the specific name. A well-flowered specimen is very effective on rockwork, but the panicles have a fault of heading over, from their weight, and also because, unlike S. longifolia and S. cotyledon, which have large and firm rosettes close to the ground to stay them, this species has a somewhat "leggy" rosette or a foot stalk, which is more or less furnished with browned and very persistent foliage. The flowers last a long time in good form, and, if grown clean, their yellow—nearly golden—stalks render them very useful in a cut state.
The propagation of this Saxifraga is more difficult than any other according to my experience, and I have heard of many who have found it the same. The offsets are not produced close to the ground, consequently have no rootlets; neither, from their hairy character, can they resist rot from moisture so well when planted as if they were bald, like the stolons of other species. I have found the best plan to be as follows: Take offsets before the plants flower; if there are none, which will often be the case, the bloom must be sacrificed by pinching out the stem. As soon as there are nice sized shoots ready, cut them off with all possible length of stalk; prepare a sandy patch of soil in a warm situation, lay them in a row on the surface, heads to the north, and then place a brick on them so as to hold all the cuttings in position; gently press on the brick, to cause the cuttings to assume a more natural position, and they will need no other attention until they become rooted; the brick will act as a screen from the hot sunshine, absorbing the heat to the benefit of the cuttings, as it will also absorb superfluous moisture. During the summer I have rooted many offsets in this way. That contact with the brick is favourable to the roots is evidenced by their clinging to it; no water should be given, however droughty the season may be—excessive moisture is the main thing to guard against.
Flowering period, June to August.
Purple Mountain Saxifrage, Purple Saxifrage, Blue Saxifrage, Opposite-leaved Saxifrage; Nat. Ord. Saxifragaceæ.
During the month of March this is one of the most effective flowers in our gardens. The mossy appearance of its foliage, when dotted with its large blossoms, is hardly less beautiful than when the whole broad spreading tufts are literally packed with them. This must be a dear flower to all lovers of our native flora, for it not only comes very early, and in its wild homes on the Ingleborough, Welsh, and Scottish hills, greets and gladdens the rambler, who is, perhaps, making his first excursion of the year, but it is one of our most striking and beautiful flowers, even though they are produced on a plant of such humble size and habit. The pleasing and descriptive names of this gem of our hills would form a chapter in themselves. Even the old Latin names by which it was known, before the time when Linnæus arranged and re-named most of our native plants, bespeak a desire to do justice to a flower of more than ordinary beauty; and, as they were so strictly descriptive, at least one, I think, may be given without trying the reader's patience: Saxifraga alpina ericoides flore cæruleo, or the Blue-flowered Erica-like Mountain Saxifrage. Doubtless, shorter names are more convenient, but such specific names as the one just given are not entirely useless. Its present botanical name is in reference to the foliage only, but otherwise so distinct is this plant either in or out of bloom that no one could well mistake it.
The flowers are ½in. to ¾in. across, produced terminally and singly on short procumbent stems. They are of a bright purple colour; petals ovate; the longish stamens carry bold anthers furnished with dark orange-coloured pollen, which forms a pretty feature. The leaves are small, crowded, opposite, ovate, entire, leathery, fringed or ciliated, and retuse. A peculiar feature about this species is the pore at the blunt apex of each leaf. The habit is prostrate; the stems being long, tufted, or pendulous, according to the situation; the flower shoots are upright, on which the leaves are more remote. Under cultivation newly planted roots will be found not only to flower sparingly, but the blooms will be rather small until the plant grows large and strong.
On rockwork, with its roots near or between large stones, is in every way the best place for it; it however, thrives in the borders. The soil is not of much importance, but without doubt it does best in a compost of the nature of that of its wild homes. The humus and grit may be represented by sand and small stones, and peat or leaf soil, all mixed with loam. This, let me here state, will be found generally the right stuff for alpines and rockery plants. This plant is useful as a spring bedder, or for carpeting bare places; and any conspicuous part of the garden needing bright objects during March and April should give room largely for this cheerful subject. The bloom is very lasting; no storm seems to do it any hurt, and in every way it is reliable. It may be readily propagated by divisions. The procumbent stems will, in strong patches, be found to supply rootlets in abundance. These may be transplanted at almost any time of the year.
Flowering period, March and April.
S. opp. alba is a white flowered variety of the above. It is not found wild. Other dissimilarities are the smaller parts throughout the whole plant, and the less straggling habit. The white petals show up the dark orange anthers finely. There are other varieties of the above type, but their points of difference are so slight as not to need description for garden uses. It may, however, be useful to give their names: S. opp. major, S. opp. pyrenaica, S. opp. retusa, S. opp. pallida. All the above varieties may be grown like the common form; their uses, propagation, and blooming period are the same, with the exception of pyrenaica, which not only flowers a little later, but is less rampant, and not nearly so easy to propagate. I have imagined that a little limestone has helped it, bits of which are placed over its roots.
Paradoxical Saxifrage; Nat. Ord. Saxifragaceæ.