Symphyotrichum praealtum (Willowleaf Aster)

Willowleaf Aster is an herbaceous perennial that typically grows to 2-5’ tall. It is easily grown in rich, moist loams in full sun to part shade. It is a good candidate for rain gardens, and often occurs in wetlands, but it is adaptable. Willowleaf Aster are an important nectar source for migrating Monarch butterflies, as are other fall blooming native flowers.

Good air circulation helps reduce issues with foliar diseases. Trimming or pinching back stems several times before mid-June will help control plant height and promote bushiness. Willowleaf Aster self-seeds and also spreads by rhizomes. Plants may be cut to the ground after flowering to prevent unwanted self-seeding.

Willowleaf Aster is best grown in moist areas of the landscape including borders, open woodlands, prairies, cottage gardens or native plant gardens.