ornamental onion
Allium atropurpureum
USDA zones3 to 9
SunHandles full sun to partial sun
WaterHandles moderate to moist soil
Size2 to 3 feet tall12 to 24 inches wide
- Bloom season
- Spring, summer
- Bloom color
- Purple
- Soil types
- Sand, loam, clay, chalk
- Soil pH
- Acid, alkaline, neutral
Garden uses
Attracts
Notes
Ornamental onion (Allium atropurpureum) is a bulb for border planting and low maintenance gardens. It is hardy to USDA zone 3, or down to -40°F (-40°C). This plant likes full or part sun and average to moist soil of most types. Warm purple florets form half domes about the size of a tennis ball on 2-3 foot stems. Deer and rabbits tend to pass it by. Bees and butterflies visit the fragrant blooms.
Pairs well with New Zealand wind grass, Black Adder Bill Williams Mountain giant hyssop, and Ravenswing cow parsley.