Smooth Aster
Symphyotrichum laeve
A late-season stalwart of the prairie — smooth, waxy-blue stems and leaves topped with clouds of sky-blue daisy flowers with yellow centres from August into frost. A critical late nectar source for migrating monarchs and native bees prepping for winter. Drought-tolerant and deer-resistant.
Quick Facts
Distribution
Prairie & Parkland, Zone 3
Light
Full sun to part shade
Bloom Time
Aug–Oct
Soil
Well-drained; adapts to clay, loam, or sandy soils
Water
Moderate; drought-tolerant once established
Pet Safe— Generally considered safe around pets.
Growing & Cultivation
Propagation
Easy from seed (barely cover — needs light). Also by spring/fall division, softwood cuttings in late spring, or separating outer rhizomes from clumps.
Spacing
45–60 cm
