Colchicum autumnale ‘Alboplenum’

white double-flowered autumn crocus

  • © Richie Steffen / Great Plant Picks

  • © Richie Steffen / Great Plant Picks

Outstanding Qualities

In early autumn large star-shaped white, fully double flowers burst from the ground. This enduring bulb has broad strappy and shiny green foliage in late winter through spring, but goes dormant for the summer. Then, before the leaves emerge again, the flowers push through the soil and bloom in late September to early October. Although commonly referred to as autumn crocus, Colchicum autumnale is not closely related to true crocus.

Quick Facts

Plant Type: bulb

Foliage Type: deciduous

Plant Height: 0 ft. 6 in. (0.15 meters)

Plant Width/Spread: 0 ft. 2 in. (0.06 meters)

Hardiness: USDA Zones 4 to 8

Flower Color: white

Sun/Light Exposure: full sun

Water Requirements: drought tolerant

Seasonal Interest: white, star-like flowers in early autumn

Wildlife Associations: bees

Resistant to: deer

Colors & Combos

Great Color Contrasts: black, dark green

Great Color Partners: lavender, pink, purple, rose, violet

Culture Notes
Colchicums grows best in well-drained soil with full sun. Strappy green leaves appear in winter and typical rainfall will usually be enough moisture to sustain the plant until they start to yellow in early summer. The bulbs are drought tolerant during the summer.