Centaurea Clementei.—A plant of robust growth (resembling C. ragusina, but much larger in every part), with broad crowns of leaves, which are deeply serrated and cut into lobes. To the elegance of the foliage must be added its beauty of colouring, the leaf in a young state being covered with down as white as snow, and when fully matured and developed still retaining a silvery appearance. This plant, which I first saw in M. Boissier’s garden, near Lausanne, I have no experience of as a hardy plant in this country; but whatever its value in this respect may be, there can be no doubt that for the summer garden it will prove as effective as either C. gymnocarpa or C. ragusina, both exceptionally fine and useful plants. The same treatment will suit it.
Centaurea dealbata is a dwarf hardy species from the Caucasus, with elegant foliage, white underneath, and rosy flowers: suitable among dwarf hardy subjects.
Centaurea gymnocarpa.—A half-shrubby plant from the South of Europe, nearly 2 ft. high, with hard, branching, bushy stems, and elegantly cut, arching leaves, which are covered with a short, whitish-satiny down. A variety (C. plumosa) has the leaves much more divided, and not so white. This plant is somewhat hardier than C. ragusina, but both require greenhouse treatment in winter. Same soil, positions, and treatment as for C. ragusina. Useful as this is as an edging or bedding plant, it is when grown as fine single specimens that its beauty is most seen.
Centaurea ragusina.—This fine and distinct plant, which has lately become one of the most popular of our flower-garden ornaments, cannot be passed by in a book on fine-leaved plants. It is so abundantly used as a bedding and ribbon-plant, etc., that nothing need be said of it in these respects, but it will be seen to great advantage in single, well-grown tufts or small groups, as its silvery leaves would contrast finely with many of the dark green and glossy things recommended for this purpose. Readily increased by seeds, or by cuttings. Should be planted out in May. S. Europe.
Chamædorea.—A family of Mexican palms, with smooth, fine green stems, resembling those of the bamboos, seldom more than 15 ft. or 20 ft. high and 1 in. or 2 ins. thick, surmounted by tufts of eight or nine pinnate or almost entire leaves, nearly 8 ft. in length. Among the most ornamental species are C. elatior, C. elegans, and C. Ernesti-Augusti. These elegant palms may, with advantage, be placed in the open air in early summer, in sunny but sheltered nooks, and taken in at the end of September. Their small, elegant heads particularly fit them for placing here and there among groups of medium-sized, fine-leaved plants, or among mixed masses of dahlias, cannas, etc.
*Chamæpeuce diacantha.—A spiny-leaved biennial of remarkable habit, growing in tufts of six or eight stems, from 2 ft. to nearly 3 ft. high, which, in the following season, are terminated by dense, spike-like clusters of purplish blooms. It requires light, well-drained soil and a warm position, and should seldom be watered. As the stems are not produced until the second year, the radical rosettes of the first year may be advantageously used in forming edgings, or on the margins of groups, for which
their light-green, silver-veined leaves are very suitable, or they may serve to fill a vacant space in the mixed border. Multiplied by sowing in spring or autumn. The plants require the shelter of a house in winter, and are only effective for edgings in the young or rosette stage.
*Chamærops excelsa.—A hardy species, with an erect stem, 20 ft. or 30 ft. high in its native country, and dark-green, erect, fan-shaped leaves, deeply cut into narrow segments. The leaf-stalks are from 3 ft. to 6 ft. long, and are enclosed at the base in a dense mass of rough fibres, and armed at the edges with small, tooth-like spines. This plant remains out during the winter in the neighbourhood of Paris, in sheltered positions, the stem being protected in severe frosts with a covering of straw, etc., and it is worth a trial in the south with us.
*Chamærops Fortunei (The Chusan Palm).—This species is often confounded with C. excelsa, from which, however, it differs in being of a stouter habit, having a more profuse matted network of fibres around the bases of the leaves and crown, the segments of the leaves much broader, and the leaf-stalks shorter and stouter, from 1 ft. to 2 ft. long, and quite unarmed. It grows 12 ft. or more in height, and has a handsome, spreading head of fan-like leaves, which are slit into segments about half-way down.
It may not be generally known that this palm is perfectly hardy in this country. A plant of it in Her Majesty’s gardens at Osborne has stood out for many winters and attained a considerable height. It is also placed out at Kew, though protected in winter. On the water-side of the high mound in the Royal Botanic Gardens, Regent’s Park, it is in even better health than at Kew, though it has not had any protection for years, and stood the fearfully hard frost of 1860. If small plants of this are procured, it is better to grow them on freely for a year or two in the greenhouse, and then turn them out in April, spreading the roots a little and giving them a deep loamy soil. Plant in a sheltered place, so that the leaves may not be injured by winds when they grow up and get large. A gentle hollow, or among shrubs on the sides of some sheltered glade, will prove the best place for it. The establishment of a palm among our somewhat monotonous shrubbery and garden vegetation is surely worthy of a little trouble, and the precautions indicated will prove quite sufficient.
Chamærops Palmetto (Palmetto Palm).—This is a rather slow-growing species, but valuable on account of its hardiness. It grows to a height of about 15 ft., and has glaucous or sea-green, fan-shaped leaves, divided into long narrow segments. The stem is smooth or without prickles. It is a very fine object when planted out; and, grown in tubs in a cool house or conservatory, stands the open air in summer well, and should be put out at the end of May.
*Chenopodium Atriplicis.—A vigorous-growing Chinese annual, with an angular, erect, slightly branched, reddish stem, over 3 ft. in height, the young shoots and leaves covered with a fine rosy violet powder. The leaves are very numerous, nearly spoon-shaped, and long-stalked. This plant is very ornamental in foliage, and well adapted for planting on grass-plats or grouping with
other plants in pleasure-grounds. May be treated as a half-hardy annual.
Cineraria maritima.—A very handsome bushy perennial, with finely-cut leaves, covered on the under side with a silvery down. It bears numerous heads of bright yellow flowers in summer. When the effect of its foliage only is desired, the flowering-stems should be pinched off on their first appearance. The plant then becomes more leafy and more branching. Multiplied easily by seeds. Useful on the margins of shrubberies, or isolated on banks, or on the grass of the pleasure-ground, where it would form an agreeable variety among the Acanthuses and various other dark-green subjects recommended for this purpose.
Cineraria Acanthifolia is a fine variety of the preceding, and well worthy of cultivation.
Cladium Mariscus.—This vigorous native fen-plant grows from 2 ft. to 6 ft. high, and, when in flower, is crowned with dense, close, chestnut-coloured panicles, which are sometimes 3 ft. in length. The radical leaves are glaucous, rigid, and often 4 ft. long. Worthy of a place near such subjects as Carex pendula or the Typhas on the margin of water.
Colea Commersonii.—A shrub from Madagascar, with very large opposite leaves, each consisting of pairs of oval-obtuse leaflets. This has been used in the subtropical garden at Battersea Park, but it is not likely to be of any practical importance in our outdoor gardening. Indeed it must be a very fine plant in this way which would produce so good an effect as young plants of Ailantus glandulosa.
*Comptonia asplenifolia.—This is a quaint-looking little shrub, fern-like in leaf and neat in habit. The leaves are long, and cut into numerous rounded lobes, somewhat like those of the Ceterach; and the habit of the shrub is spreading and pleasing. It likes peaty soil, and may be increased by layers, suckers, or seeds. It should be used as an isolated specimen on the grass, or associated with such things as the oak-leaved Hydrangea and Aralia japonica. A very pretty object in the woods of New Jersey and many other parts of N. America, where it is called the Sweet Fern. It would be peculiarly appropriate for similar positions in this country, when we have it plentiful enough to naturalise.
Cordyline indivisa.—A magnificent New Zealand plant, with a simple stem, from 2 ft. to 5 ft. high, and well distinguished by its excessively thick and leathery leaves, which are from 1 ft. to 5 ft. long, and 4 or 5 inches broad, lance-shaped, of a dark shining green colour, the midrib and veins being of a rich deep orange. The flowers are white, and very densely crowded, in a large drooping panicle. This fine greenhouse plant may be placed out of doors in summer, from the end of May till October, with a very good effect; best, perhaps, as an isolated specimen, the pot being sunk in the grass.
Corypha australis.—A noble Australian palm, over 30 ft. high in its native country, and forming a very effective subject for the subtropical garden in summer, from June till October. The leaves are nearly circular, often more than 5 ft. broad, of a dark green colour, very much plaited, and divided round the edge into narrow segments, and supported by spiny leaf-stalks, from 6½ ft. to nearly 10 ft. long. It requires abundance of water, and should have a warm, sunny, and sheltered position. Few places, however, can afford to have subjects of this character in the open air, except where there are large conservatories, in which it is a relief to get more room in summer.
*Crambe cordifolia.—This is unquestionably one of the finest of perfectly hardy and large-leaved herbaceous plants. It is as easily grown as the common Seakale—more easily, if anything; and in heavy rich ground makes a splendid head of leaves, surmounted in summer by a dense spray of very small flowers. In planting it, the deeper and richer the soil the finer the result. It will prove a capital thing for any group of fine-leaved hardy plants, and may also be planted wherever a bold though low type of vegetation is desired.
There is another species, *C. juncea, a dwarf kind, with white flowers and much-branched stems, the ramifications of which are very slender and elegant. This is also effective, but not so valuable as C. cordifolia.
*Cucurbita perennis.—A climbing or trailing plant, well adapted for covering walls, ruins, trellises, steep slopes, etc. It is a very vigorous grower, its stems sometimes attaining a length of nearly 40 ft. in one year; but it will probably never do this in our climate. The leaves are strong, rough, and of a glaucous colour; and the shoots run about freely if the plant be in very rich soil. Where a bold trailing plant for high trellis-work, or rough banks, or shaggy rockwork is desired, it will be found useful; but withal we cannot give it a place in the front rank, and the small select garden without any of the above-mentioned appendages will certainly be better without it. For the botanical garden and curious collections it is indispensable. It is strong and lasting when well established, and may be allowed to trail over rough places, stumps, or similar positions. The flowers have a rather strong odour of violets, and are succeeded by roundish fruit, the size of a small orange, of a deep green colour barred and speckled with white. Requires a deep, light soil, and a warm but airy position. Seedlings and plants in exposed places should be covered in winter with litter or leaves. It is easily multiplied in spring by division of the young tuberous stems, or by sowing in light, substantial, well-drained soil from April to July, or in pots in a lukewarm hotbed in March and April. It has not, so far as I am aware, fruited in our climate.
Cyathea dealbata.—This very handsome fern, known in N. Zealand as the Silver Tree-fern, has a slender, branched, almost black stem, 4 ft. to 8 ft. high, ending in a fine crown of broadly-oblong twice-divided fronds of a dark green colour above and milk-white below; the rachis and midribs when young are covered with brown scales, and afterwards with pale deciduous down. This plant may be placed in the open air, in the southern and milder districts, during the summer months from the end of May till the end of September.
Cycas revoluta.—A graceful and well-known plant, with a very stout stem, sometimes, though rarely, reaching a height of from 6 ft. to 10 ft. from the top of which issues a beautiful crown of dark green pinnate
leaves, from 2 ft. to 6 ft. long. It is one of the most valuable of the greenhouse plants that may be placed in the open air in summer from the end of May till October, and is particularly graceful in the centre of a bed of flowering plants, or isolated with the pot or tub plunged to the rim in the turf, always in a warm and sheltered position. Increased by seeds, or by separation of the suckers which are occasionally thrown up.
*Cynara Scolymus (French Artichoke).—This plant, although chiefly grown for culinary purposes, possesses sufficient merit as a foliage-plant to entitle it to a place amongst ornamental subjects. Its long, deeply-divided leaves, white and downy beneath, its height (4 ft. to 5 ft.), its purplish flower-heads, and distinct habit render it very suitable for planting on the irregular and rougher parts of pleasure-grounds, grass-plats, etc., which are often occupied by subjects far less striking.
*Cyperus longus (Galingale).—The stiff, erect, tapering, triangular stem of this plant, which is from 2 ft. to 3 ft. high, is crowned by a handsome loose umbellate panicle of chestnut-coloured flower-spikes, at the base of which there is an involucrum of three or more unequal leaves. These are often 1 or 2 feet long, the lower ones arching gracefully and of a bright shining green, giving the plant a very distinct and pleasing appearance. The rootstock is thick and aromatic, and was formerly much used in medicine as a tonic. A rare native plant, suitable for the bog-bed or the margin of water.
Dahlia imperialis (Lily-flowered Dahlia).—The common Dahlia gives us no more idea of this than the little vernal Scilla of Britain does of Scilla peruviana. The Imperial Dahlia has very large and graceful, much divided leaves, and flowers of a pure and beautiful French white, thrown up in a great cone-like mass, and resembling such lilies as L. tigrinum Fortunei, which, instead of merely developing a head of flowers, shoot up a great candelabrum laden with them. The flowers of this dahlia do not, like most of the flowers of composite plants, open so wide as to stare at you with the brazen look of a sunflower, but, on the contrary, hang pendulous and half open, with some of the modesty of the white lily. There is little chance of this species producing its flowers in the open air in this country, but it will, notwithstanding, be of service both in the flower-garden and conservatory.
Planted in rich soil, and placed in a warm, sheltered position in the open air at the end of May, it grows well with us in summer, and, in consequence of its large and graceful leaves, is an ornament worthy of being used as a “fine-foliaged” or “subtropical” plant. Just at the time that it begins to gather together its flowering energies the best of our season fails, and the plant must soon fail too, if not immediately taken up and placed in a well-lighted and warm greenhouse. If plunged out in a large pot or tub during the summer, it may be taken up without injury, and will in all probability flower under glass in the autumn, and prove a magnificent ornament. We should have very small hopes of its flowering well if planted out so that its great roots must be mutilated when being taken up, and therefore the safe way will be to pot it in a very large pot, and plunge that in the ground. The roots would probably go through the pot and enter the ground, but the main mass of them could be taken up without disturbance,
and then it could if necessary be shifted into a larger pot or small tub.
*Datisca cannabina.—A distinct and gracefully-habited herbaceous plant from 4 ft. to 6 ft. high. The long stems are clothed with large and handsome pinnate leaves, and the yellowish-green inflorescence appears towards the end of summer. The male plant has long been known as a very strong, graceful, and effective herb. The female plant, however, remains green much longer than the male, and when profusely laden with fruit, each shoot droops and the whole plant improves in aspect. It should not be forgotten in any selection of hardy plants of free growth and imposing aspect. From seed will probably be found the best way to raise it, and then one would be pretty sure of securing plants of both sexes.
Dicksonia antarctica.—A very noble evergreen tree-fern, with a stout trunk, which varies considerably in thickness, and attains a height of 30 ft. or more. The fronds, which form a magnificent crown 20 ft. or 30 ft. across, are lance-shaped, much divided, of a shining dark green on the upper surface, and paler underneath, from 6 ft. to 20 ft. long, beautifully arched, and becoming pendulous with age. Perhaps the hardiest of tree-ferns, and therefore most suitable for placing in the open air in summer in sheltered shady dells, from the middle of May to the beginning of October.
*Dicentra (Dielytra) eximia.—A plant with dense and very graceful foliage, far more so than any other member of the order in cultivation; and valuable as a flowering plant too, as the brightly-coloured flowers remain on for a long time in spring and early summer. It generally grows from 12 ins. to 16 ins. high, forming thick, almost pyramidal, tufts of pale green, glaucescent, deeply-divided leaves, and bearing handsome drooping clusters of large, rose-coloured flowers, often flowering twice in the year. Although not absolutely necessary, it will be all the better to plant it in light soil. Multiplied by division of the tufts in spring. It should be associated with dwarf subjects like Thalictrum minus, or be used on the margins of mixed beds of fine-leaved hardy plants.
*Dimorphanthus mandschuricus.—A magnificent hardy shrub of erect habit, with very large, much-divided, spiny leaves, which very much resemble those of the Angelica-tree of North America, and in this country attaining a height of 6 ft. to 10 ft., which it will probably much exceed when well established in favourable positions. It is certainly the most remarkable fine-foliage shrub that has been introduced into our gardens for years, and is therefore of the highest importance for the subtropical garden. As to its treatment, it seems to thrive with the greatest vigour in a well-drained deep loam, and would grow well in ordinary garden soil. As to position, isolation in some sheltered but sunny spot will show it to great advantage; but it may also be grouped with like subjects, always allowing space for the spread of its great leaves.
*Dipsacus sylvestris.—A rather singular-looking hardy native plant, 5 ft. to 6 ft. high, with a prickly, leafy, branching stem, and longish opposite leaves joined together at their bases. The flowers are of a pretty purplish rose-colour, and are borne in conical heads 3 ins.
or more in length. Suited for the embellishment of rough, uneven ground, and will grow well in almost any kind of soil. Still more desirable than the foregoing is D. laciniatus; a native of France, the leaves of which are fringed with silky hairs instead of spines, and which has always whitish flowers. Both these plants are biennials, and are easily raised from seed.
Long as this noble family has been known in our gardens, we have yet to learn a great deal about its use and beauty. Hitherto only allowed to grace a stove or conservatory now and then, the Dracænas in future will be among the indispensable ornaments of every garden where grace or variety is sought. They are among the very best of those subjects which may be brought from the conservatory or greenhouse in early summer, and placed in the flower-garden till it is time to take them in again to the houses in which they are to pass the winter months. And if it were not necessary to protect them through the winter, it would be almost worth our while to bring them indoors at that season, so graceful are they, and so useful for adding the highest character to our conservatories. The hardier and most coriaceous kinds, like indivisa and Draco, may be placed out with impunity very far north. The brightly coloured kinds, like D. terminalis, have been tried in the open air at Battersea, but not with success. It would be dangerous to try them in the open air much farther north, except in very favourable spots. The better kinds are indicated in the select list of subtropical plants. D. indivisa grows well in the open air in the south of England and Ireland.
Dracæna australis.—A fine plant, with a stout, branched stem, from 10 ft. to 40 ft. high; and oblong, lance-shaped, bright green leaves, from 2 ft. to 3 ft. in length and 2 ins. to 4 ins. in breadth, striated with numerous parallel veins. Flowers white, densely crowded, sweet-scented, ¾ in. across; but these are rarely produced except in large houses in botanic or other gardens, where there are old or well-established specimens. This is a useful conservatory species, and may be used out of doors in summer, like D. indivisa, though it is not quite so graceful. This plant is of very easy culture in ordinary soil.
Dracæna cannæfolia.—A very fine species from New Holland, with a tall stem, and leaves from 20 ins. to 2 ft. long, the sides of which are rolled inwards, so as to form a kind of pipe, of a fine sea-green colour, and supported on stalks a foot or more in length. This is a valuable species for warm greenhouse or conservatory use, and also for placing out of doors in the southern counties, though it thrives best indoors.
Dracæna Draco (Dragon tree of Teneriffe).—A large and vigorous species, native of the Canary Islands, where it attains a great height and age; the now perished Dragon-tree at Orotava in Teneriffe having grown, according to Meyen, “70 ft. high and 48 ft. in circumference, with an antiquity which must at least be greater than that of the Pyramids.” In this country it is seldom seen more than 10 ft. high. The stem is tree-like, simple or divided at the top, and often, when old, becoming much branched, each branch terminated by a crowded head of lanceolate-linear entire leaves of a glaucous green colour. The flowers form a large terminal panicle, and are individually small and of a greenish-white colour. This plant is more graceful and effective when in a young state, in which it usually occurs in our gardens, than when old and branched. It thrives well in the greenhouse or conservatory, and in the midland and southern counties may be placed in the open air from the end of May to October, while it is a fine object indoors at all seasons. It is of very easy culture in sandy loam, and requires plenty of pot room.
*Dracæna indivisa.—A very graceful plant, with leaves from 2 ft. to 4 ft. long, and 1 in. to 2 ins. in breadth, tapering to a point, pendent, and dark green. It should not be confounded with the conservatory plant known as Cordyline indivisa, which is too tender to succeed well in the open air, and somewhat difficult to grow. This species, on the contrary, is perfectly hardy in the south of England and Ireland. I saw good specimens of it at Bicton a few years ago, and quite recently as far north as Woodstock, in the county Kilkenny, in Ireland; a plant also stood out in a vase for several years in Mr. A. M’Kenzie’s garden at Muswell Hill, N. D. indivisa lineata is a very fine variety, the leaves of which are much broader than those of the type, measuring sometimes 4 ins. across, and coloured with reddish pink at the sheathing base. Other good varieties are D. indivisa atro-purpurea, which has the base of the leaf and the midrib on the under side of a dark purple; and D. indivisa Veitchii, in which the habit and size of the leaf are the same as in the species, but in addition it has a sheathing base and the midrib on the under side is of a beautiful deep red. It would be difficult to find a plant more worthy of cultivation than this. Where it does well in the garden or pleasure-ground in the southern parts, it surpasses any Yucca or other hardy plant that I know in respect of distinctness and tropical-looking grace; and, this being the case, there can be little need to plead for it to the many who have gardens in the counties south of London. In all districts it may be placed in the open garden in summer with fine effect, the rim of the pots plunged level with, or a little below, the surface, and the plants either isolated on the turf, in the centre of a bed of flowering plants, or grouped with other fine-leaved subjects. In the conservatory it is one of the most effective and graceful subjects at all seasons, and is of very easy culture in rich sandy loam.
The Dracænas are a very numerous family, and many more might be described; but most of the other kinds have not been proved to possess any excellence for the flower-garden, while those enumerated are abundantly sufficient to represent the aspect of this graceful and stately family.
Echeveria metallica.—This is scarcely high enough to be suitable for association with the taller plants, but it is so very distinct in aspect, and has been proved to grow so well in the open air during several unfavourable seasons, that I must not pass it by. I purposely exclude from this book many things sometimes found in lists of “subtropical” plants, but which may be classed most properly with bedding subjects. But this, although not very large, forms an agreeable and distinct object, and is very well calculated for producing a striking effect among dwarf bedding and edging plants. It may be propagated by the leaves, by cuttings, or by seeds, and requires a dry greenhouse-shelf in the winter. Light sandy earth, not of necessity very poor, will suit it best in the open air. It will prove very effective on the margins of beds and groups of the dwarfer foliage-plants, or here and there among hardy succulents, and should be planted out about the middle of May.
*Echinops ruthenicus.—A hardy ornamental plant from S. Russia, with stems 3 or 4 feet high, much branched in the upper part, and covered with a silvery down. The leaves are deeply toothed and spiny, of a dark green above, white and cottony underneath. The flowers are blue, and borne in almost spherical heads on the tops of the erect branches. The plant flourishes best in a calcareous soil, but will do well in almost any well-drained ground. Easily multiplied by seed, division of the tufts, or by cuttings of the roots in spring. This is the most ornamental of its distinct family, and is highly suitable for grouping with the finer herbaceous plants. It would also look remarkably bold and well if isolated on the turf.
*Elymus arenarius.—This wild British grass—a strong-rooting and most distinct-looking herb—is capable of adding a striking feature to the garden here and there, and should be quickly introduced into cultivation. Planted a short distance away from the margin of a shrubbery, or on a bank on the grass, and allowed to have its own way in deep soil, it makes a most striking object. In short, it deserves to rank high among really hardy fine grasses, the Pampas and the two Arundos alone surpassing it. I am not quite certain that it is not more useful than the Arundo, being hardy in all parts of these islands. In very good soil it will grow 4 feet high; and as it is for the leaves we should cultivate it, if the flowers are removed they will be no loss. It is found frequently on our shores, but more abundantly in the north than in the south. The variety called geniculatus, which has the spike pendulous, is also worthy of culture, and in its case the flowers may prove worth preserving. It may possibly be useful for covert, and is certainly so for rough spots in the pleasure-ground and in semi-wild places.
*Elymus condensatus (Bunch grass).—A vigorous perennial grass from British Columbia, forming a dense, compact, column-like growth, more than 8 ft. in height, covered from the base almost to the top with long arching leaves, and crowned in the flowering season with numerous erect, rigid spikes, each 6½ ins. long, and resembling an elongated ear of wheat in form. It is a very ornamental plant, and may be associated with our largest grasses. A very distinct variety has been raised in the Edinburgh Royal Botanic Gardens, in which the spikes or ears are much shorter and broader than those of the original form. For this the name Elymus condensatus compactus has been suggested.
Entelea arborescens.—A small, branching, light-wooded tree, 5 to 10 ft. high, with large, alternate, heart-shaped or three-lobed leaves covered with stellate down, and white flowers, somewhat like those of a small dog-rose, borne in umbels on the ends of a branching panicle. It is peculiar to New Zealand, and is the only species of the genus. This used to grow satisfactorily in the Paris gardens, but I have no experience of it in this country. It will require greenhouse treatment in winter, and is of but secondary importance for open-air culture.
*Epimedium pinnatum.—A hardy dwarf perennial from Asia Minor, from 8 ins. to 2½ ft. high, forming handsome tufts of long-stalked radical pinnate leaves, and bearing long clusters of yellow flowers. The handsome leaves remain on the plant until the new ones appear in the ensuing spring. It is not a good plan to remove them, as they serve to shelter the buds of the new leaves during the winter, and the plants flower much better when they are allowed to remain. Cool, moist, peaty soil, and a slightly-shaded position, will be found most suitable for this, and the novel appearance of its foliage claims a place for it among the dwarfer plants, groups of fine-foliaged hardy herbaceous subjects, Mahonias, etc.
*Equisetum Telmateia (Giant Horse-tail).—A British plant of very noble port and much grace of character when well-developed, growing from 3 ft. to 6 ft. high in favourable soil and positions. The stem is furnished from top to bottom with spreading whorls of slender, slightly drooping, quadrangular branches; the whole forming a pyramidal outline of very distinct and pleasing effect. It is a highly ornamental subject for planting in the hardy fernery, the artificial bog, shady peat borders, near cascades, or among shrubs growing best in moist hollows in vegetable soil. Multiplied by division.
*Equisetum sylvaticum is another native Horse-tail of much dwarfer size, but of the most exquisite grace when grown; the stem standing from 8 to 15 inches high, and well covered with numerous slender, spreading, or deflexed compound branches. Very suitable for rockwork, margins of ornamental water, or any of the positions in which E. Telmateia may be grown. It also does well and looks very graceful when grown in pots in a cold frame. Multiplied by division.
*Erianthus Ravennæ.—A highly ornamental grass from S. Europe, somewhat like the Pampas grass in habit, but smaller in size, and frequently having violet-tinged leaves. The flowering-stems grow from 5 ft. to 6½ ft. high; but as it only flowers with us in a very warm season, it must be valued for its foliage alone. Its dense and handsome tufts thrive well in light, dry, calcareous soil, in positions with a south aspect. It thrives but poorly on cold soils, and will probably not grow well north of London except in peculiarly favourable positions, and in well-drained free loams. It is fitted for association with such grasses as Arundo conspicua. Multiplied by division of the tufts in spring or autumn.
*Eryngium alpinum.—A singular-looking plant, from 2 ft. to nearly 3 ft. high, forming a rather stiff bush, with leathery and very spiny leaves of a sea-green colour, and bearing numerous roundish heads of bluish flowers, the stems beneath them being also of a very handsome blue for some inches down. Suitable for planting in the wilder parts of pleasure-grounds, for isolation, for borders, or grouping with the finest and most distinct subjects.
*Eryngium amethystinum is not so tall as the preceding, seldom growing more than 2½ ft. high. It is remarkable for the beautiful amethystine bloom which the leaves assume in July, and which they preserve until the approach of frost. It is suitable for the positions recommended for the preceding kind. Various other members of this family are useful in like manner; indeed there is not one of them that is not so, including our own common Sea Holly, E. maritimum.
*Erythrina.—These are very beautiful trees or shrubs, pretty generally distributed through the tropics of both hemispheres. Some attain great dimensions, while others are dwarf bushes with woody rootstocks, and a few have the stems and leaf-stalks beset with prickles. The leaves are trifoliate, with long stalks, and the leaflets oval, lance-shaped, or triangular. Many of the species produce beautiful large pea-flowers, usually of a blood-red or scarlet colour, in terminal racemes. The varieties of these have proved very hardy and useful in the summer garden, flowering freely, and showing considerable beauty of foliage. Two round beds, each of 9 ft., and one oblong bed, 42 ft. by 5 ft., including E. ornata, Marie Belanger, laurifolia, crista-galli, profusa, Madame Belanger, ruberrima, Hendersoni, stood out last winter uninjured in Battersea Park; and, as many people know, the common old Erythrina crista-galli will thrive for years against a warm south wall in a warm soil, if protected about the root in winter.
Eucalyptus.—Handsome Australian trees and shrubs, of which there are a vast number of species, many growing to an immense height. The leaves are of a thick leathery texture, always quite entire, and very variable in shape. In young plants they are opposite, heart-shaped, pointed, and covered with a glaucous bloom; as they grow older, they become alternate and sickle-shaped, the stalks acquiring a peculiar twist, so that the leaves present their edges to the branches. The most hardy kinds are E. globulus and E. Gunni. Other kinds, however, will no doubt be found sufficiently hardy. These are most likely to be attractive in the south of England and Ireland, where a few of the species will be found to thrive in the open air, as the peculiarly distinct and graceful habit of the trees is not observed till they are 12 ft. or more above the ground. Nevertheless some may grow them for the aspect they present after a single year’s growth in the open air about London, in which case they should be put out about the middle of May. I was very much struck with their graceful and singular appearance in California, where they are being planted in great variety.
Farfugium grande.—A very vigorous-growing perennial, with thick fleshy stems, from 1 ft. to nearly 2 ft. high, and broad, cartilaginous, almost heart-shaped leaves, of a light-green colour, variously streaked, and spotted with yellow in one variety, and with white and rose-colour in another. It flourishes best in free, substantial, moist soil which contains a large proportion of vegetable mould, and in a half-shady position. During the heats of summer it will require frequent watering. At the approach of winter it should be removed to the conservatory or cool greenhouse, except in the southern and milder districts, where it survives an ordinary winter. In the colder parts of the country it is scarcely worth planting out, it grows so slowly; but where it thrives it is very ornamental in borders, isolated, or near the margin of beds. Multiplied by division in spring; the offsets to be potted and kept in the propagating-house or in a frame until they are well rooted.
Ferdinanda eminens.—This is one of the tallest and noblest subtropical plants, growing well in the southern and midland counties when it is supplied with rich soil and abundant moisture. It is also very much the better for being sheltered. Where the soil is rich, deep, and humid, and the position warm, it attains large dimensions, sometimes growing over 12 ft. high, and suspending pairs of immense opposite leaves. It will in all cases form a capital companion to the Castor-oil plant, and, though it may not be grown with ease in all parts, it should be in every collection. It requires to be planted out, in a young state, about the middle of May, and grows freely from cuttings. Greenhouse treatment will do in winter. It is better to keep a stock in pots through the summer to afford cuttings, though the old ones may be used for that purpose.
I wish it were not necessary to write in praise of such very fine plants as these, so noble in aspect and beautiful in leaf. If 2000 kinds of herbaceous plants are grown, the first things that show clearly above the ground in the very dawn of spring (even in January) are their deep-green and most elegant leaves. In good garden soil they look like masses of Leptopteris superba, that most exquisite of ferns. Their chief charm will probably be found to consist in their furnishing masses of the freshest green and highest grace in early spring. The leaf is apt to lose some of its beauty and fade away early in autumn, but this may to some extent be retarded by cutting out the flower-bearing shoots the moment they appear. Not that these are ugly; for, on the contrary, the plants are fine and striking when in flower. It is indispensable that the Ferulas, like some other hardy foliage-plants, be planted permanently and well at first, as it is only when they are thoroughly established that you get their full effect. At a first view, the best way to treat them would appear to be so to arrange them that they would be succeeded by things that flower in autumn, and only begin their rich growth in early summer; but it will be equally wise to plant them near the margin of a shrubbery, or wherever it is desired to have a diversified and bold type of vegetation. We may look forward to the day when a far greater variety of form will be seen in English gardens than is at present observable, and these Ferulas are thoroughly well worth growing for their superb spring and early summer effect. The best species are
F. communis and tingitana. Probably a few others, including F. glauca, neapolitana, nodiflora, asparagifolia, Ferulago, and persica, may with advantage be added where much variety is sought, but the effect of any of the first three cannot be surpassed. Among the “aspects of vegetation” which we may enjoy in these cold climes, nothing equals that of their grand leaves, pushing up with the snowdrop. In semi-wild spots, where spring flowers abound, it will prove a most tasteful and satisfactory plan to drop a Ferula here and there in a sunny spot, and leave it to nature and its own good constitution afterwards. In general aspect these plants are much alike; it is better, however, to describe some of them individually.
*Ferula asparagifolia.—An ornamental perennial, 4 ft. or 5 ft. high, with very graceful and finely-cut leaves, the radical ones 1 ft. to 2 ft. long (including the leaf-stalk), repeatedly subdivided: the divisions very narrow, linear, pointed, and set with hairs; the upper stem-leaves are reduced to short sheaths, the lowest of which bear a short pinnate limb.
*Ferula communis.—A very fine and striking hardy perennial, growing from 6 ft. to 10 ft. or more high, with much-divided, spreading, shining green leaves, repeatedly subdivided into linear, flaccid segments; the lower leaves spreading more than 2 ft. each way; the sheaths of the upper leaves very large.
*Ferula Ferulago.—A very ornamental kind, with striped stems, 6 ft. to 8 ft. high, and much-divided leaves, with divided spreading leaflets, which are nearly as broad as those of F. tingitana, but longer, and of a darker green.
*Ferula glauca.—A valuable and imposing foliage-plant, 4 ft. to 6 ft. or more high, with very much divided leaves, shining above, glaucous beneath, cut into long, linear, flat segments. The stalks of the upper leaves are widened above.
*Ferula persica.—A hardy perennial from Persia and the Caucasus, with a glaucous stem from 3 ft. to 6 ft. high, tapering gradually upwards, and very handsome, much-divided leaves, with rather distant lance-shaped leaflets, widening and toothed or cut at the apex. Flowers in umbels, without any general or partial involucrum. This plant is easily distinguished by its strong asafœtida odour, and requires warm sandy soil.
*Ferula tingitana.—A very noble plant, from 6 ft. to 8 ft. high, with a stout stem and very glistening leaves, which are broader than those of any other species, and repeatedly subdivided into oblong or lance-shaped deeply-toothed segments.
Ficus Chauvieri.—A noble species, with a faultless habit, which does well in the open air, and is the best kind after F. elastica. The leaves are oval-obtuse in outline, of a very dark glistening green, with pale-yellow veins, and usually have one or more large undulations on the margin. Useful for the same purposes as the following species.
Ficus elastica (India-rubber Plant).—This is one of those valuable leathery-leaved things that are useful in hothouse, drawing-room, or flower-garden. It not only exists in the open air in summer in good health, but makes a good growth under the influence of our weak northern sun. Never assuming the imposing proportions of other plants mentioned herein, it is best adapted for select mixed groups, and, in small gardens, as isolated specimens amongst low bedding plants. It will best enjoy stove treatment in winter, and is propagated from cuttings. It should be put out at the end of May. In all cases it is better to use plants with single stems.