Dahlia

A tuberous perennial grown for large, showy summer-to-frost flowers in a wide range of colors and forms. Tubers are frost-tender — in cold zones lift and store over winter.

Sun

full sun (6+ hrs)

Water

moderate

Mature size

1-5 ft (varies by type) × 1-3 ft

Bloom

Large showy flowers, mid-summer until frost.

Hardiness

USDA Zones 8–11

Care guide

Quick ID

Tuberous perennial (*Dahlia*) grown for large, showy summer-to-frost flowers in many colors and forms.

Sun & Site

Full sun (6+ hrs); rich, well-drained soil. Stake taller varieties.

Seasonal Care

Deadhead for continuous bloom; pinch early for bushiness. Tubers are frost-tender — in Draper, lift and store after first frost (or mulch heavily and gamble on overwintering).