Yarrow: A Drought-Tolerant Native for Habitat and Veggie Gardens

Yarrow (Achillea millefolium) attracts butterflies, birds, and beneficial insects while repelling pests—making it a star for both habitat and vegetable gardens. Predatory hoverflies and ladybugs flock to it, handling pest control naturally. Its fern-like foliage belies a tough, variable perennial: drought-tolerant yet accepting summer water, mowable as a lawn alternative, with evergreen foliage from dark green to silver-gray and spring-to-summer flowers from white to deep pink.

Caution: May become invasive in some regions; select cultivars native to your area.

Quick Facts

• Botanical name: Achillea millefolium
• Common name: Common yarrow
• Origin: Throughout California (except deserts); temperate Northern Hemisphere (Asia, Europe, North America)
• Natural habitat: Many California plant communities except deserts; below 11,000 feet
• Hardiness: USDA zones 3–9 (–30 °F)
• Water: Occasional to drought tolerant; inland, best with summer water every 2–4 weeks
• Light: Full sun to light shade
• Soil: Adaptable
• Mature size: Low spreading foliage; flowering height 6 inches to 3 feet
• Benefits: Attracts butterflies, pollinators, beneficial insects; repels pests; excellent vegetable companion; erosion control; good under oaks; tolerates deer, alkaline soil, sand, clay, seasonal flooding, light foot traffic, mowing
• Seasonal interest: Showy spring/summer flowers; soft evergreen fern-like foliage
• When to plant: Late fall ideal; winter good; spring acceptable; summer challenging

Distinguishing Traits

Highly variable: white to dark pink flowers; evergreen fern-like foliage; drought-tolerant yet accepts summer water; great lawn alternative.

Wildlife Value

• Painted lady butterflies (Vanessa cardui) use as host plant—don't squish caterpillars!
• Variable checkerspot (Euphydryas chalcedona) and other butterflies nectar.
• Prolific nectar/pollen producer—highly attractive to native bees and honeybees.
• Predatory insects (ladybugs, lacewings, hoverflies, mini-wasps) attracted, then feed on pests.
• Winter seed heads feed juncos, sparrows, towhees; foliage foraged by birds; cavity nesters use for lining.

Design Uses

• Ground cover or lawn alternative
• Natural meadow or habitat garden
• Slope stabilizer
• White flowers stunning in night garden; good cut/dried flowers
• Companion plant in vegetable gardens

Planting Notes

• Prune seed heads after bloom or leave for winter birds/texture.
• As lawn: mow at 4 inches every 2 weeks (adjust to preference).
• Site carefully—spreads vigorously.

California Native Selections

'Rosy Red', 'Island Pink', 'King Range', 'Sonoma Coast', 'Shell Beach', 'Point Cabrillo', 'Calistoga' (gray foliage). Select regionally native plants to avoid invasiveness.