Growing Aster, Symphyotrichum, Eurybia

Until recently plants now classified as Symphyotrichum and Eurybia were classified with Asters. However, even though the horticultural classification has changed for some of the plants we offer, they all share the same growing instructions.

Grow in full sun (or partial shade in the South) in moist but well-drained soil (A. amellus tolerates drought). S. novae-angliae varieties are susceptible to powdery mildew in dry soil. They also require division every year or two to remain vigorous. S. novae-angliae varieties may require staking; if you prefer, you can pinch them back once or twice (by 1/3–1/2) before the end of June (July in the South and the Southwest) to keep them compact. In the South, A. X frikartii 'Monch' may stop blooming by midsummer; shear it back by half, and it will bloom again through the better part of fall.