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Douglas Aster (Symphyotrichum subspicatum)
About this plant
Height Less than 1m
Spread up to 2 feet (0.6 m)
Bloom Season July-Sept
Sun: Sun to partial shade
Soil: Dry to moist, well-drained
Pollinators: Bees, butterflies, hummingbirds
Hardiness: Hardy to Zone 5
Timing: Sow indoors 5-6 weeks before transplanting after the last frost date. Or simply direct sow in spring. Seeds can be slow to germinate, so be patient.
Seeding: Barely cover the seeds, and keep soil moist until plants are established.
Growing: Grow in full sun to light shade, in fertile, moist soil. The plants spread very slowly by underground rhizomes. Clumps can be split up and replanted every 2-3 years. Although the plants are drought tolerant, they thrive in full sun in moist conditions.