Achillea millefolium, commonly known as yarrow or common yarrow, is a flowering plant in the family Asteraceae. Growing to 1 metre tall, it is characterized by small whitish flowers, a tall stem of fernlike leaves, and a pungent odor.Hardiness Zones: Most species of yarrow are hardy in USDA zones 3-9, but can sometimes be grown in zones 2 and 10 with some success. Uses: Yarrow is versatile, suitable for borders, rock gardens, naturalized areas, cottage gardens, and containers. It’s also a good choice for xeriscaping and cut flower arrangements. Pollinators: Yarrow is highly attractive to bees, butterflies, and other pollinators, making it a good choice for pollinator-friendly gardens. Other Benefits: It’s generally resistant to deer and rabbit damage. Native Area: Yarrow is native to North America, Asia, and Europe. Appearance: Yarrow has fern-like leaves and flat-topped clusters of small flowers that can range in color from white to yellow, pink, and red. Sunlight: Yarrow thrives in full sun, but can tolerate some shade. Other Names: Common yarrow is also known as milfoil, soldier’s woundwort, thousand-leaf, and thousand-seal.