Plants in this genus are low-growing mats to medium-sized perennials found in mountainous regions and grasslands. Most have green to grey aromatic, deeply cut leaves. Inflorescences form 3- to 5-inch flat clusters in summer and autumn.
Noteworthy CharacteristicsFern-like foliage is often aromatic. Appropriate plants for rock or wildflower gardens. Tall varieties are good for cut flowers and for drying.
CareMost plants in this genus will tolerate a wide range of soils, assuming they are moist and well-drained and in full sun. Achillea dislikes damp locations. Divide regularly to maintain vigor.
PropagationSow seed in situ or divide plants in spring.
ProblemsAphids, powdery mildew, rust.