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© Denver Botanic Gardens   View Photos

ornamental onion 
Allium caeruleum

  Not Native

Dimensions

Height: 1.0 ft. to 2.0 ft.
Spread: 6.0 in.; to 1.0 ft.

Growth Form

Herbaceous

Program Association

Xeriscape Incentive Program

Wildlife Uses

Pollinators/ Invertebrates

Sun Requirements

Full Sun, Part Sun

Water Requirements

Moderate

Season of Bloom

May, June

Flower Color

Blue Shades

Leaf Color

Green Shades

Aggressiveness

Readily Seeds

Design Considerations

Fragrant, Small Spaces, Showy Flowers

Other Considerations

Deer Tolerant

Duration

Perennial

Soil Type

Loam, Nutrient Rich, Sandy, Well Drained

Pests/Disease Prone

No City Data

Hazards/Toxic

No City Data.