Plants in this genus are low-growing mats to medium-size perennials found in mountainous regions and grasslands. Most have green to gray aromatic, deeply cut leaves. Inflorescences form 3- to 5-inch flat clusters in summer and autumn.
Noteworthy CharacteristicsThe fernlike foliage is often aromatic. Yarrows are 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 soil types, assuming they are moist and well-drained and in full sun. Yarrows dislike damp locations. Divide regularly to maintain vigor.
PropagationSow seed in situ, or divide plants in spring.
ProblemsAphids, powdery mildew, rust.