Island Pink Yarrow

Island Pink is a spreading yarrow selection with bright pink, flat-topped flower clusters above finely divided green foliage. The [UC Davis Arboretum](https://goodlifegarden.ucdavis.edu/all-stars/island-pink-yarrow) identifies it as a California native; Moosa Creek Nursery describes the selection as native to Santa Cruz Island and spreading by rhizomes. ## Garden use Sources describe flower stems rising roughly 18–24 inches above the foliage, while plant spread can reach 3 feet or extend farther over time. Use it in a sunny perennial border, meadow edge, or broad groundcover planting, allowing room for its spreading roots. The flowers can be cut and attract native bees, butterflies, and other beneficial insects. In UC Davis's garden the bloom period is March through June, while [Theodore Payne Foundation](https://store.theodorepayne.org/collections/groundcover/products/theodore-payne-foundation-achillea-millefolium-isl) lists flowering from spring into early fall, showing how season length shifts with climate. ## Siting and water Full sun suits coastal sites; inland, afternoon shade can help. The UC Davis Arboretum lists low to moderate irrigation, and [Heron's Head Nursery](https://heronsheadnursery.com/products/achillea-millefolium-pink-island-form) reports drought tolerance after establishment. It tolerates varied soils, including rocky and clay sites, but good drainage remains useful for yarrow. ## Maintenance Remove old flower stalks when a tidier look is wanted, or leave them for winter structure and seeds for birds. UC Davis notes that reducing irrigation can help check its spread; divide in the cool season only if needed.