Grassland Agoseris
Agoseris grandiflora
Last reviewed: June 2026
Light
full sun
Water
low
Size
6"–24" H × 4"–12" W
Bloom
May, Jun, Jul
Native to
CA, ID, MT, NV and 3 more states
Pollinators
bees, butterflies
Browse plants for this ecoregion
Grassland agoseris is a low-growing perennial wildflower that produces bright yellow dandelion-like blooms from late spring through summer. This drought-tolerant native forms compact clumps with basal leaves and reaches up to 2 feet tall when flowering. It naturally goes dormant in late summer, disappearing until the following spring.
In an HOA neighborhood
Grassland Agoseris takes more care to keep looking intentional in a front yard. Maintenance level: low. Consider it for backyard or mid-zone beds rather than the street edge.
Works well in: backyard only.
- Resembles dandelions which many consider weeds
- Completely disappears during dormancy leaving bare spots
- Informal wildflower appearance doesn't fit manicured landscape expectations
Wildlife value
The cheerful yellow flowers attract native bees and butterflies during the peak growing season. Seeds provide food for small birds and mammals in late summer.
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 Grassland Agoseris fit your yard? Open it in Pollinator Patch to check it against your sun, soil, and HOA-conscious filters.