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Specifications
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Item

Perennial

Genus

Allium

Species

Caeruleum

Common Name

Ornamental Onion

Hardiness Zone Minimum

Zone 4

Growth Height Max

24 in.

Growth Height Min

12 in.

Hardiness Zone Maximum

Zone 8

Spacing

12 in.

Growth Width Min

12 in.

Growth Width Max

12 in.

Growth Habit

Upright

Growth Rate

Fast

Soil Acidity

Slightly Acidic

Soil Moisture

Low

Landscape Use

Beds, Border, Cottage Gardens, Rock Gardens

Exposure

Full

Maintenance

Low

Animal Resistance

Deer, Rabbit

Tolerance

Black Walnut, Drought

Season of Interest

Spring, Summer

Flower Color

Sky Blue

Bloom Time

Late Spring (June)

Fruit

No

Edible

No

Soil Type

Chalky, Clay, Loamy, Sand

Formulaic Common Name

Ornamental Onion

Regulated
No

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