Aster Chinensis. - China Aster. - This old garden flower has been very much improved within a few years. There are florists in Europe, whose only business consists in improving and classifying Asters for the seed, and upon whom seedsmen in all parts of the world depend for their choice varieties. Seeds from these establishments are now received at the Seed Store of Joseph Breck & Son, in Boston, and at other places in the country, and sold in the following classes:

1st. New French Peony-flowered Aster. - This superb class is sold in packages of ten varieties. The flowers are very full and double, nearly as large as a medium sized Dahlia, and much handsomer, to our taste, and embrace all the colors to be found in the Aster.

2d. German Globe Pyramid Asters, in twelve distinct varieties. - This class has globular full flowers. When properly cultivated, it makes fine branching pyramidal plants, covered with a profusion of perfect flowers of every color and shade.

3d. German Quilled Aster is put up in collections of twelve distinct varieties, of the same colors and mixtures as the others. In this variety the petals are beautifully quilled.

4th. French Globe Asters, in twelve varieties, similar to the German Globe Aster, but different in their growth.

5th. German Dwarf Asters, in eight varieties. - The dwarfs are a beautiful class, not more than eight or ten inches high, completely covered with flowers.

6th. New Dwarf Bouquet Aster, in twelve varieties. - This is a very beautiful class, each plant forming a perfect bouquet.

In the cultivation of improved Asters the soil should be made very rich; the tall varieties planted not less than fourteen or fifteen inches apart; the dwarf sorts from ten inches to one foot.

The Aster is known among the French as the Reine Marguerettes. The Peony-flowered variety of the. Queen Margaret is grown in great perfection by a florist at Versailles, where some of the finest varieties have been produced. On account of the beauty, perfection, and grandeur of its flowers, and the softness, brilliancy, and variety of its colors, it must stand in the first rank among the ornamental plants of the flower garden.

For early blooming plants, the seed should be sown in frames, with a little bottom heat, in April. When the plants have become sufliciently strong, they may be transplanted into beds or borders the last of May. But for late flowering plants, they succeed full as well when the seed is sown in the open ground, from the 1st to the 10th of May. This applies to all the varieties.