Of the lily there are numerous widely-varied species, many of them well known, ©any others rarely seen in gardens. It grows from a bulb, and will do well in any well-protected bed. To develop it in perfection the soil should be dug to a depth of a foot and a half, filled to a foot with swamp muck and leaf mold or fresh manure, and the hole filled with six inches of peat and rich mold. The bulbs should be planted four or five inches deep, or, of the weaker sorts, three or four inches. Most of the species are quite hardy, but it is advantageous to cover them with a deep compost before winter.
The cultivation of the rose needs no special directions. The plants, once rooted, last for years, and bloom freely with little cultivation ; some once only in the season, others continually. They are nearly all hardy, though many require some degree of winter protection.
North America has furnished our gardens with various handsome flowers, among them the large and beautiful dahlia, whose very numerous varieties, more than two thousand in all, have been derived by cultivation from two species of Mexican plants. The neat grace and perfection of their floral forms and great variety of shades of scarlet, crimson, purple, red and yellow, give them a special adaptation to floral borders, where they lift their trim heads with an air of pride. No plants surpass these in their inclination to sport into new varieties. The dahlias are generally cultivated by the division of the tuberous roots. These will not bear the frosts of northern climates, and must be taken up as soon as frost blackens the tops and kept for winter in a dry and sufficiently warm place.
Another handsome garden plant of North American origin is the familiar and favorite phlox, which bears its flowers in terminal panicles. The original form, once much grown in our gardens, is now rarely met with, the showy phloxes of to-day being all hybridized varieties, the production of the florists. They are highly ornamental in character. One species, the drummondii, has sported into a variety of beautiful colors, and is one of the most showy of cultivated annuals.
Among the wild flowers of the United States the most magnificent when in bloom is the rhododendron, which forms impenetrable thickets in many parts of the Alle-ghanies, and, with its related plant, the mountain laurel, gives a wonderful charm in the floral season to the Appalachian mountain glens, from Maine to Georgia. The cultivated rhododendron is produced by hybridization between the American and several Asiatic species,. In the hands of the florist it has attained a wonderful exuberance of form and color, the highly-cultivated varieties being unequaled for richness of hue and showiness and profusion of petals. It is a hardy plant, and will winter out of doors, calling for no special care or cultivation. This, of course, does not apply to the floral monstrosities annually exhibited, as results of the exaggerated care of flower fanciers.
We have named here only a few of the better known of an innumerable variety of flowers, very many of which are adapted for house cultivation or garden growth ; but, as their treatment does not vary greatly, and in special cases must be learned largely by experience, we shall say no more here upon this attractive subject.