Mountain Agoseris
Agoseris aurantiaca
Last reviewed: June 2026
Light
full sun
Water
low
Size
6"–24" H × 4"–12" W
Bloom
Jun, Jul, Aug
Native to
AZ, CA, CO, ID and 8 more states
Pollinators
bees, butterflies
Browse plants for this ecoregion
Mountain agoseris produces cheerful orange dandelion-like flowers on slender stems above low rosettes of narrow leaves. This compact native wildflower blooms throughout summer and thrives in sunny, dry conditions with minimal care.
In an HOA neighborhood
Mountain 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 HOAs consider weeds
- Can look sparse or weedy outside of bloom period
- May self-seed and appear in unwanted locations
Wildlife value
The bright orange flowers attract native bees and butterflies during the summer blooming period. Seeds provide food for birds later in the season.
Common questions
- How much sun does Mountain Agoseris need?
- Mountain Agoseris grows best in full sun conditions.
- When does Mountain Agoseris bloom?
- Mountain Agoseris blooms in June, July, and August.
- Where is Mountain Agoseris native?
- Mountain Agoseris (Agoseris aurantiaca) is native to AZ, CA, CO, ID and 8 more states, per the USDA PLANTS Database and regional native plant society lists.
- What pollinators does Mountain Agoseris attract?
- Mountain Agoseris draws bees and butterflies.
- Is Mountain Agoseris HOA-friendly?
- Mountain Agoseris takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.
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.
Ready to grow Mountain Agoseris? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.
Not sure where to start? Take the 2-minute yard quiz