Consistent bloomer all summer long if old blossoms are removed as they fade. All varieties prefer full sun, well-drained soil and twice-a-week watering. Divide plants every 2-3 years to maintain vigorous plantings.
C. grandiflora — 1-2 ft. tall by 1 ft. wide; orange to yellow flowers from June-August
C. lanceolata — 1-2 ft. tall by 1 ft. wide; yellow flowers from June-September
C. verticillata (Threadleaf Coreopsis) — 11/2-3 ft. tall by 3 ft. wide; yellow flowers from July-September
C. v. ‘Golden Showers’ — 2 ft. tall by 2 ft. wide; yellow flowers from July-August
C. v. ‘Moonbeam’ — 2 ft. tall by 2 ft. wide; pale yellow flowers from June-September
D. x ‘Alwoodii’ — gray-green leaves; flowers white, pink, rose or red from June-July
D. barbatus (Sweet William) — 1 ft. tall by 1 ft. wide; green leaves; fragrant maroon, red or pink flowers from May-June
D. deltoides (Maiden Pinks) — 6-12 in. tall by 24 in. wide; green leaves; red, pink, white or purple flowers; shear after bloom
D. gratianopolitanus (Cheddar Pinks) —
1 ft. tall by 1 ft. wide; gray-green leaves; fragrant pink, red or rose flowers from May-September if old flowers removed following bloom
D. plumarius (Cottage Pinks) — 2 ft. tall by
1 ft. wide; gray leaves; white, pink or red flowers in June