Among the most carefree and generously blooming perennials for summer and early fall, several being equally useful in the garden and as cut flowers (taller kinds may be cut and dried for winter bouquets). Leaves are gray or green, bitter-aromatic, usually finely divided (some with toothed edges). Flower heads are usually in flattish clusters.
Yarrows do best in well-drained soil. Water established plants occasionally (they tolerate considerable drought once established). Cut back after bloom to encourage rebloom. Divide when clumps get crowded.
From the Caucasus. Erect plants that grow to 4–5 ft. tall and up to 3 ft. wide, with deep green, fernlike leaves. Bright yellow flower heads in flat-topped clusters. Dried or fresh, they’re good for flower arrangements. Attract beneficial insects. Several horticultural varieties are available. ‘Cloth of Gold’ and ‘Gold Plate’ have bright golden flower clusters up to 6 in. wide. ‘Parker’s Variety’ is a strong, erect grower to 4 ft. tall, with golden yellow blooms. Hybrid ‘Coronation Gold’, to about 3 ft. tall and half as wide, has silvery gray leaves and large clusters of golden yellow flowers.
Heavy bloomer with bright orange petals tipped in yellow grows to about 1 1/2 ft. high.
Original strains of this annual were single-flowered plants 3–4 ft. tall and 2 ft. wide. Modern ...
Vigorous-growing annual to 10–15 ft., with large, heart-shaped leaves. Showy, funnel-shaped to b...