A vigorous and easy to grow perennial, yarrow grows native throughout California in many plant communities. This crop is grown from seed collected from a hot inland site in Napa County. In this form, flower stems rise 18 inches above the gray ferny foliage bearing white flowers in flat topped clusters. Plant in a sunny location with moderate to a little water. Spreads by rhizomes and can form sizable clumps if happy. A good addition to the habitat garden where the flowers provide nectar for bees and butterflies and the foliage provides winter forage for birds. The foliage is deer resistant.