White Yarrow (Achillea millefolium) is a champion of the low-maintenance garden. This naturalized Canadian favourite is prized for its aromatic, fern-like foliage and its ability to produce swarms of showy, flat-topped white flowers for months on end. Growing to an average height of 45 cm, it spreads via rhizomes to form dense, lush mats. Whether used as a reliable ground cover for hot, dry slopes or as a delicate texture in a formal rock garden, White Yarrow offers long-lasting beauty where other plants struggle to survive.