Alkali Aster
Symphyotrichum frondosum
Last reviewed: June 2026
Light
full sun
Water
medium
Size
12"–36" H × 12"–24" W
Bloom
Jul, Aug, Sep
Native to
AZ, CA, CO, ID and 6 more states
Pollinators
bees, butterflies
Browse plants for this ecoregion
Symphyotrichum frondosum is a native aster that produces clusters of small white or pale purple daisy-like flowers from summer through early fall. This compact perennial forms neat clumps with fine-textured foliage and reaches 1-3 feet in height.
In an HOA neighborhood
Alkali Aster is an HOA-friendly choice. Maintenance level: low. Tidiness: 3 out of 5.
Works well in: foundation, mid zone, backyard only.
- May look sparse or weedy in early spring
- Some HOAs prefer non-native ornamentals
Wildlife value
The late-season blooms provide crucial nectar for bees and butterflies when many other flowers have finished. Seeds also feed songbirds in fall and winter.
Native range data from the USDA PLANTS Database and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
Does Alkali Aster fit your yard? Open it in Pollinator Patch to check it against your sun, soil, and HOA-conscious filters.