Rocky Mountain Butterweed
Packera streptanthifolia
Last reviewed: June 2026
Light
full sun
Water
medium
Size
6"–18" H × 6"–12" W
Bloom
May, Jun, Jul
Native to
CA, CO, ID, MT and 6 more states
Pollinators
bees, butterflies, beetles
Browse plants for this ecoregion
Rocky Mountain ragwort is a compact wildflower with bright yellow daisy-like blooms that appear from May through July. This low-growing perennial forms neat clumps with attractive foliage and reliable flowering in full sun conditions.
In an HOA neighborhood
Rocky Mountain Butterweed 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.
- Ragwort name carries negative connotations
- Can look sparse when dormant
- May be perceived as weedy wildflower
Wildlife value
The cheerful yellow flowers attract bees, butterflies, and beetles throughout the summer blooming period. This native plant provides important nectar sources for pollinators during peak growing season.
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 Rocky Mountain Butterweed fit your yard? Open it in Pollinator Patch to check it against your sun, soil, and HOA-conscious filters.