Aster -Propagation and protection

Asters need fertile, sandy, well-drained soil and full sun. The propagation is through seeds. Before sowing, sterilize the seeds with organic mercuric compounds to prevent stem rot and damping-off. For sowing of seeds, it is best to use a shallow flat. Add one-forth well rotted manure and enough sand to the soil to prevent the soil from becoming hard. Fill the flat half or two-thirds full, water thoroughly, and finish filling with soil just moist enough to handle nicely. Sow the seed in rows 2 inches apart, cover with fine sand and press firmly. The wet soil in the bottom will furnish enough moisture so that the boxes will not have to be sprinkled until after the seedlings are up.

The seeds will germinate in a little over a week. As soon as several true leaves have grown, the seedlings should-be transplanted. Use rich soil in the bottom of the flats and ordinary soil above as further protection against disease. Set the seedlings 3 to 9 inches apart depending on the variety. The plants will grow to a height of 6-10 inches to 3 feet and a width of 6-18 inches.

Since they are prone to wilt disease, virus diseases, foot rot, root rot, and aphids, avoid planting in the same location year after year. Pinch off faded flowers and yellowing foliage regularly to encourage new blooms. Shading plants prevents injury from the tarnished plant bug and yellows. If plants are badly diseased, burn them and stop growing China-asters for a few years. Water well in dry weather.