Growing Guide
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Allium, Blue Globe

Spring-Flowering Bulb, Summer and Fall-Flowering Bulb

Allium caeruleum
Alliaceae Family
Synonym: Allium azureum

Blue Globe Alliums bear 1- to 2-inch spherical clusters of star-shaped blue flowers on stalks 2 feet tall in late spring or early summer. A native of the steppes of Russia, it performs best under hot, dry conditions. Great for cut- and dried-flower arrangements.

Site Characteristics
  • full sun

Soil conditions:

  • requires well-drained soil
Prefers fertile, very well-drained soil.

Hardiness zones:

  • 4 to 10
Plant Traits

Lifecycle: perennial

Ease-of-care: easy

Height: 1.5 to 2 feet

Spread: 0.5 to 1 feet

Bloom time:

  • late spring
  • early summer

Flower color: blue

Foliage color: medium green

Foliage texture: medium

Foliage clasps the erect stem, and dies back before the plant blooms.

Shape: upright

Shape in flower: flower stalks with flowers as globes

Spherical blooms composed of numerous tiny, star-like blossoms.

Special Considerations
Special characteristics:
  • deer resistant
  • non-aggressive
  • non-invasive
  • not native to North America - Native to North and Central Asia.
Special uses:
  • cut flowers
  • dried flowers
Growing Information
How to plant:

Propagate by division or separation - Plant the bulbs 2 to 4" beneath the soil surface in fall.

Divide and replant bulbs and in fall. You can also plant the bulblets that form in the flowerhead.

Maintenance and care:
Apply mulch in fall for winter protection.

More growing information: How to Grow Bulbs

Onion fly
White rot
Bulb rot
Purple blotch
Gray mold