Sow seeds indoors 6 to 8 weeks before the last frost date or directly in the soil after your region s last frost date. Place seedlings 6 to 12 inches apart after your region s last frost date. Pull plants up after the first frost. China aster does well in Zones 2-11 of the U.S.D.A. Plant Hardiness Zone Map. For a steady supply of cut flowers, replant seeds every two to four weeks.
China aster is susceptible to a variety of disease, including wilt and aster yellows virus.
To avoid these, plant in a different location each year. Inc. How things get done. Use of this Web site constitutes acceptance of the eHow Terms of Use and Privacy .