Long-Leaved Or Intermountain Or Western Aster
Symphyotrichum ascendens
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 8 more states
Pollinators
bees, butterflies
Browse plants for this ecoregion
Western aromatic aster produces clusters of small white to pale purple daisy-like flowers from summer through fall. This compact native perennial forms neat clumps with narrow gray-green leaves and maintains a tidy appearance throughout the growing season.
In an HOA neighborhood
Long-Leaved Or Intermountain Or Western Aster is an HOA-friendly choice. Maintenance level: low. Tidiness: 4 out of 5.
Works well in: front yard, foundation, street edge, mid zone.
- May look sparse in early spring before full growth
Wildlife value
The late-season blooms provide crucial nectar for bees and butterflies when few other flowers are available. Seeds also feed small birds 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 Long-Leaved Or Intermountain Or Western Aster fit your yard? Open it in Pollinator Patch to check it against your sun, soil, and HOA-conscious filters.