Western Yarrow
Achillea lanulosa
Last reviewed: July 2026
Light
full sun
Water
low
Size
12"–24" H × 12"–18" W
Bloom
Jun, Jul, Aug
Native to
CA, CO, ID, KS and 10 more states
Pollinators
bees, butterflies, beetles
Browse plants for this ecoregion
Achillea lanulosa is a native yarrow that forms low clumps of feathery, gray-green foliage topped with flat clusters of small white flowers. This drought-tolerant perennial blooms throughout summer and requires minimal care once established. The plant spreads gradually to form attractive patches.
In an HOA neighborhood
Western Yarrow 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.
- May be perceived as too wild or weedy for formal landscapes
- Unknown winter appearance could be problematic
- Native wildflower aesthetic may not align with traditional HOA standards
Wildlife value
The flat flower clusters attract a wide variety of beneficial insects including native bees, butterflies, and beetles. The long blooming period provides consistent nectar sources throughout the growing season.
Common questions
- How much sun does Western Yarrow need?
- Western Yarrow grows best in full sun conditions.
- When does Western Yarrow bloom?
- Western Yarrow blooms in June, July, and August.
- Where is Western Yarrow native?
- Western Yarrow (Achillea lanulosa) is native to CA, CO, ID, KS and 10 more states, per the USDA PLANTS Database and regional native plant society lists.
- What pollinators does Western Yarrow attract?
- Western Yarrow draws bees, butterflies, and beetles.
- Is Western Yarrow HOA-friendly?
- Western Yarrow 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 Western Yarrow? 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