The Trilliums, or Trinity Flowers, are very ornamental plants, and are so distinct in form that they please everyone. They like shade and a moist peaty soil. Grandiflorum is a general favourite, with its large flowers of pure white. There is also a rose-coloured form named grandiflorum roseum. Even finer than grandiflorum is sessile var. californicum, which is considerably taller, and has fine white flowers, those of the typical sessile being purple. Cernuum, erectum, erectum album, nivale, petiolatum, recurvatum, and stylosum are all pretty, the last being the latest to bloom, and well worth growing. Plant in autumn or spring, with the crown one or two inches below the surface of the soil.
CHAPTER XI
HARDY BULBS
Tulips — Zephyranthes
Tulips
It is a matter for regret that the true beauty of the Tulip has been so long obscured by the manner of its planting in stiff lines or beds, where the flowers stood in almost regimental array, with little but their own foliage to tone down the superfluous brilliancy of the mass of colour. It is emphatically a flower which requires association with other plants to show its true value. Grown in bold clumps in the mixed border, or in irregular groups among the rougher grass, it gives a much better effect. Individually, the Tulips are very beautiful, and their value in pots is of a high degree. Of course those who grow the English florist's Tulip ought to continue to grow them in beds and in lines, so that they can be protected from frost and shaded readily from strong sunshine. For ordinary gardens, however, an informal grouping will be the most satisfactory and pleasing. The species are very varied in their character, and many of the dwarfer are delightful rock-garden plants. A good, loamy soil is suitable for all classes of Tulips, but where it is heavy a little coarse sand may be placed about the bulb. It is well to plant comparatively early, from the beginning of October to the end of November being the most suitable time. In gardens subject to late frosts, it is better to plant in November than in the earlier month. Three or four inches is the depth generally recommended, but on light soil an additional inch may be given. Six inches apart is a good distance at which to plant the bulbs for ordinary effect. The English florist's Tulip ought to have a good loamy soil, the bulbs being planted three inches deep and four apart in lines. The end of October to the middle of November is the best time, but the bulbs should never be planted unless the soil is in a good working condition. Some litter should be put over the beds in severe frosts, and an awning erected over them at the blooming-time to preserve the flowers from rain and strong sun. There are a number of details connected with the florist's Tulip and its cultivation which cannot be given in the space of this work, but Mr Bentley's little pamphlet, entitled "The English Tulip," will give all necessary information not to be found here. The florist's Tulip can be grown in a border, but its effect there is not so good as that of some of the self-coloured flowers.
The early Tulips are the most prized for pot-culture, but the others may be used also, although not generally so amenable to forcing. They should be planted at the rate of from three to five bulbs in a five-inch pot, according to the size of the bulbs. After planting, the pots should be plunged in ashes or cocoa-fibre until they have made root-growth, when they may be brought in as required and subjected to gentle forcing. Watering must be carefully attended to at this time. When a number of flowers are required for jardinettes, etc., the Tulips may be grown closely together in boxes. When they show colour, they may be lifted with roots intact, and planted in moss in the receptacles in which they are required.
TULIPS CARPETED BY ARABIS
The most valuable Tulips for early work are the early Dutch varieties, many of which are very beautiful and embrace much variety of colour. The varieties of Duc Van Thol and Pottebakker are largely used for early bloom, but other good varieties are Bacchus, Canary Bird, Keizerskroon, Mon Tresor, and Proserpine. Following these are the popular Artus, Cottage Maid, Crimson King, and many others. As, however, almost all the bulb-dealers give the blooming periods in their lists, it would only take up space unnecessarily to detail them. A special selection of the best for pot work or for forcing would include such varieties as the Duc Van Thols, Couleur de Cardinal, Globe de Rigaut, Keizerskroon, the Pottebakkers, Royal Standard, and Samson, all reliable bloomers where they are properly cultivated.
Double Tulips last a little longer in bloom, but they do not lend themselves so well to the decoration of the garden, and many people do not care for their rather heavy-looking blooms. Good varieties for pots and forcing are Artus, Brutus, Duchess of Parma, Proserpine, Rose tendre, Thomas Moore, and Van der Neer. For bedding there are Cramoisie superbe, La Candeur, Murillo, Rex Rubrorum, and Titian, besides a number more. Variegated leaved Tulips are pretty in beds, even before the blooming time, but they are not much grown in this country.