Symphyotrichum hallii, commonly known as Hall’s aster, is a perennial herb endemic to the Pacific Northwest, specifically to prairies, meadows, and open woodlands of western Oregon and Washington states. It typically grows to a height of 12-24 inches and features daisy-like flowers with white to pale violet rays and yellow centers that bloom from late summer to early fall, specifically July to August. The flowers are modest in size but can be quite showy when the plant is in full bloom, attracting pollinators such as bees and butterflies.

Hall’s aster is valued for its late-season blooms, which provide color and interest in the garden when many other plants have finished flowering. It is often used in native plant gardens, meadowscapes, and as part of pollinator-friendly landscaping. This species prefers full sun to part shade and requires well-drained soil. While it is drought-tolerant once established, it benefits from occasional watering during prolonged dry spells. Hall’s aster is relatively low-maintenance but can be susceptible to powdery mildew in humid conditions. It is considered imperiled in Washington state due to habitat loss and should be cultivated with care to preserve its natural populations.CC BY-SA 4.0