It enjoys a light but rich loam and sunny aspect, and increases itself freely by offsets of the matured corms, clumps of which may be divided after the foliage has withered.
Flowering period, January.
Cyananthus Lobatus
A small plant with a large flower, a veritable gem; no collection of choice alpines can be complete without this species. A native of Chinese Tartary, brought to this country in 1844, where it proves perfectly hardy in the most exposed parts of the open garden; it is herbaceous and perennial; its large and brilliant flowers are very beautiful, but all its other parts are small, as may be seen in the illustration (Fig. 31). It is seldom met with except in collections of rare plants, but there is no reason why it should not be more commonly grown, as its requirements are now well understood. It is not a showy subject, but, when examined, it proves of exquisite beauty.
The flowers are of a bright purple-blue colour, over an inch across, the petals being of good substance, tongue-shaped, and falling backwards, when the china-like whiteness about the top of the tube becomes more exposed; the calyx is very large, nearly egg-shaped, having five finely-pointed and deeply-cut segments; the bulky-looking part, which has an inflated appearance, is neatly set on a slender stem, and densely furnished with short black hairs of even length; this dusky coat has a changeable effect, and adds not only to the character, but also to the beauty of the flower. The small attenuated leaves are alternate and laxly arranged on the flower stems, which are 6in. to 12in. long, round, and nearly red. Each leaf is less than 1in. long, distinctly lobed with five or more lobes, and all the edges are turned back, causing the foliage to appear thick and well finished; the foliage of the stems not bearing flowers is more closely set. The habit of the plant is procumbent; stems contorted, and producing solitary flowers.
Fig. 31. Cyananthus Lobatus.
(Natural size.)
It should be grown on rockwork, where its stems can nestle between the stones and its roots find plenty of moisture, as in a dip or hollowed part; the long and fleshy roots love to run in damp leaf mould and sand. The position should be open and sunny, in order to have flowers. Cuttings may be taken during summer, and struck in sandy peat kept moist, or strong roots may be divided. The latter method is the less desirable, not only because of jeopardising the parent stock but also because strong roots show to greater advantage when not separated.
Flowering period, September and October.
Cypripedium Calceolus
This well-known terrestrial orchid is a rare British plant, very beautiful, and much admired, so much so, indeed, that many desire to grow it. It happens, however, that it seldom thrives under cultural treatment, and seems to prefer a home of its own selection, but its habitats are said now to be very few in Great Britain, it having been hunted out and grubbed up everywhere. Fortunately, it can be grown in gardens, and in good form, though rarely seen thus. To see well-grown flowers of this orchid either makes us feel more contented with our own climate or strongly reminds us of others where the most gorgeous varieties of flowers and fruit grow wild. It is large and striking, fragrant, and very beautiful; no one can see it, especially in a growing state, without being charmed by its freshness and simplicity; it also forms one of the finest specimens for the student in botany, and in every way it is a plant and flower of the highest merit (see Fig. 32). It should be in all collections of choice plants, and every amateur should persevere until he succeeds in establishing it.
Fig. 32. Cypripedium Calceolus.
(One-third natural size.)
Under cultivation it flowers in early May, at a height of 9in. to 12in.; the flowers are composed of a calyx of three brownish-purple sepals, which have only the appearance of two, from the fact of the lower two being joined or grown together, and even so combined they are somewhat less than the upper sepal. The division may be observed at the tips, though in some specimens it is microscopic—in the one now by me it is hardly the eighth of an inch. Two petals; these are cross-form in relation to the sepals, of the same colour, and a little longer—about 2in.—narrow, drooping, pointed, and slightly twisted when a few days old; lip, "blown out like a slipper," shorter than the sepals, compressed, richly veined, and lemon yellow. The seed organs are curious, the stigma being foot-stalked, peltate, and placed between and above the anthers. The leaves are pale green, very hairy, many-ribbed, stem-clasping, alternate, ovate, and slightly wavy; the lower ones are 5in. or 6in. long and 2in. to 3in. wide, and pointed. The root is creeping, the fibres stout, long, wiry, and bent. During spring the plant makes rapid growth, and seldom bears more than one flower; for the first time a plant produced two with me in 1882. They are sweetly scented, like the primrose.
Many amateurs, who have otherwise proved their knowledge of the requirements of plants by growing large and choice collections, have failed to establish this after many trials; and were it not for the fact that with me it is growing in various positions and under different modes of treatment, and that it has so grown for several years, I think I should not have ventured to give hints to experienced horticulturists. In my opinion, four conditions are strictly necessary in order to establish this native orchid in our garden: (1) A strong specimen with a goodly portion of the rhizoma attached; (2) Firm or solid planting during autumn; (3) Moist situation; (4) Shade from the mid-day sun. Further information may be best given by stating the modus operandi: Several years ago a number of good roots were planted in sandy loam of a calcareous nature. They were put in somewhat deeply, the roots carefully spread out, and the soil made solid by repeated waterings, the position being shaded by an apple tree. They are now well established, and only receive a top dressing of leaves and manure to keep them cool and moist in summer. At the same time a number were potted deeply in loam, peat, and broken oyster shells; when filling in the compost, it, too, was washed to the roots, so as to make all solid by frequent applications; the pots have always been kept in cool and shady quarters, and plunged; they bloom well every season. I have likewise found another plan to answer well. In a moist corner make up a low-lying bed of sand and peat, mostly sand, plant 9in. deep, and make all solid, as before, by water. When the growths appear on the surface, water with weak liquid manure, and if shade does not exist from the mid-day sun, some should be provided; in this way I am now growing my finest specimens; but if once the roots become dry, the plants will suffer a serious check. I feel equally confident that the roots enjoy a firm bed, but it should be of such material that they can freely run in it.
Flowering period, May and June.
Daphne Cneorum
An alpine shrub from Austria; dwarf, evergreen, and having a tendency to creep. It is deservedly a great favourite; it wins admiration by its neat and compact form and its dense and numerous half-globular heads of rosy pink flowers, which are exceedingly fragrant, in the way of the old clove carnation, but more full.
Fig. 33. Daphne Cneorum.
(One-fourth natural size; (1) flower, full size.)
The flower buds are formed during the previous season of growth, like those of the rhododendron; for many days before the flowers open the buds have a very pleasing appearance, being closely packed and