Rosa Maria Yarrow

Achillea millefolium 'Rosa Maria' is a compact yarrow with rosy-pink flower clusters above aromatic, fern-like blue-green foliage. Its long bloom season suits sunny borders, small pollinator beds, and containers, while the flower stems can also be cut for informal arrangements. ## Garden character The flat-topped clusters appear from spring into fall and attract bees, butterflies, and other pollinators. [Annie's Annuals](https://www.anniesannuals.com/products/achillea-millefolium-rosa-maria) describes plants around 18 inches tall by 24 inches wide; the [UC Davis Arboretum plant list](https://arboretum.ucdavis.edu/sites/g/files/dgvnsk1546/files/inline-files/S20%20First_Web_INV_1_30_20.pdf) lists an 18–24-inch height range. [Takao Nursery](https://takaonursery.com/wp-content/uploads/2022/09/Takao-Plant-List-with-images-description.pdf) also records the exact cultivar at 18 inches tall and flowering from spring into fall. Foliage is described as evergreen, though its persistence can vary with winter conditions. ## Growing conditions Grow in full sun and well-drained soil; Annie’s also lists part shade as suitable. The cultivar tolerates clay and heat. Water regularly through its first growing season; after establishment it tolerates dry periods, though occasional low-volume irrigation supports a better display. Catalog hardiness ranges differ slightly: Takao lists USDA zones 3–9 and Annie's lists 3–10, so use local winter performance when choosing a site. ## Maintenance Remove faded flower heads to encourage continued flowering and keep the plant tidy. Allow new plantings regular water while they establish, then reduce irrigation as roots settle in.