These tough, showy, little-known perennials native to the northeastern U.S. deserve wider use. They tolerate heat, drought, humidity, and poor soil and have no serious pests. Daisylike yellow blooms decorate the plants for many weeks in late summer and fall. Give them good drainage and plenty of sun. Dig and divide crowded clumps in early spring. Resist deer.
C. falcata. GROUND GOLD. Grows to about 1 ft. high, 1 ft. wide. Small (34-in.) flowers appear on branched stems above a rosette of broadly linear leaves to 312 in. long.
C. mariana. MARYLAND GOLDEN ASTER. Grows to 2 ft. or possibly 3 ft. high, 112 ft. wide, with large (9-in.) basal leaves, smaller stem leaves, and tight clusters of 112-in. flowers.
C. villosa. GOLDEN ASTER. Taller than C. mariana (to 45 ft. tall, 2 ft. wide), with smaller, more scattered flowers. Blooms for a long time; excellent cut flower. Good to combine with ironweed, fall asters, and blue salvia. 'Golden Sunshine' is a compact form to about 3 ft. tall, with large (2-in.) golden flowers.