POLIANTHUS TUBEROSA FLORE PLENO.

This very popular bulb, generally known as Tuberose, has been cultivated in England upwards of two centuries, whence we no doubt have received it, and now can return those of our production to supply their demand. The flowers are many and highly odoriferous, and of the purest white, and on a flower stem from three to five feet high. To have them in the greatest perfection, they should be planted in a lively hot-bed, about the first of this month in six inch pots filled with light rich earth, giving very little water until they begin to grow, when they ought to be liberally supplied with plenty of air, and about the end of next month they may be planted in the borders, providing a spot for them that is or has been well worked, and enriched with well decomposed manure. Secure their flower stems to proper rods. Previous to planting the roots, all the off-sets should be taken off and planted separately; keep the crown of the bulb level with the surface of the pot, and when they are replanted in the open ground, put them two inches deeper.

But when the convenience of a hot-bed cannot be obtained, they will succeed very well if planted about the end of this month or first of next in the garden, in a bed of earth prepared for their reception. Let it be dug deep, and make the soil light and rich, by giving it a good supply of manure two years old, well broken and incorporated with the earth, adding a little sand where the soil is heavy. The black earth from the woods produced from decayed leaves is equally as good without sand. Having the ground in proper order, draw drills about two and a half inches deep, and eighteen inches apart; plant the bulbs (after divesting them of their off-sets) nine inches apart in the row, covering the crown of the bulb about an inch and a half. When done, carefully rake and finish off the beds. When they shoot up their flower stems, give them neat rods for their support. Plant the off-sets in closer rows to produce flowering roots for next year, because they seldom flower the second time.

AMARYLLIS FORMOSISSIMA, OR JACOBEA LILY.

About the end of this or beginning of next month, is the most proper time for planting out these bulbs. This flower is of the most beautiful and rich crimson velvet colour. The bulb generally produces two stems, the one after the other, about the end of May or first of June. The stem is from nine inches to one foot high, surmounted by a single flower, composed of six petals, three hanging down, three erect and recurved; the stamens droop on the centre of the under petals. The flower thus appears nodding on one side of the stem, and has a most graceful and charming appearance. If planted in a bed, prepare the ground as before directed for Tuberoses. Keep the rows one foot asunder, and the bulbs six inches apart in the rows, covering them two inches over their crowns. This plant is now called Spreikèlia formosíssima, and we think properly too, for its habit differs from Amaryllis.

We have not the smallest doubt that in a few years, not only this superb South American bulb will adorn our flower gardens, but many of the rich bulbs of Brazil and South America generally will yearly exhibit to us the beauty of their colours and the beautiful construction of their flowers and foliage, of which we are now generally deprived, perhaps because we have not the conveniency of a proper hot-house for their protection during winter. But it will be found, in many instances, that these bulbs will do perfectly well to be kept dry in a warm room from October to May, when the heat of our summer is sufficient for the perfection of their flowers, and many species will ripen their seeds. The bulb that is known as Amaryllis Belladónna, now called Belladónna purpuráscens, is hardy.

TIGER FLOWER.

Tigrídia, a genus of Mexican bulbs belonging to Monadelphia Triándria, and produce the most beautiful flowers of the natural order of Irideæ. T. pavònia is of the brightest scarlet, tinged and spotted with pure yellow. T. conchiiflòra, colour rich yellow, tinged and spotted with bright crimson. The colours are very rich, and purely contrasted. The corolla is about four inches in diameter, composed of six petals; the outer are reflexed, the flower of the largest, though splendid in beauty, exists only one day; but to compensate for that, a plant will produce flowers for several weeks; and where a bed of them can be collected, they will bloom in profusion from July to September. They like a light rich free soil. Lift the bulbs in October, and preserve them as directed in that month for Tuberoses. Be sure that they be kept dry, and secure from frost. A bed of these should be in every garden. A writer says, "it is the most beautiful flower that is cultivated." Plant them about the end of this or first of next month; if in beds keep them one foot apart each way.