Blue Globe Onion

Allium caeruleum

Plant Details:

Plant Type: Perennial
Plant Family: Liliaceae
Plant Description: Clump-forming herbaceous perennial with dramatic, blue, globe-shaped flower clusters that bloom in mid to late spring. Long, thin, strap-like leaves grow basally. Enters dormancy after flowering and will die back to the ground only to rebloom next year.

Maintenance:

Maintenance Type: Perennial - Herbaceous
Plant Care: Perennial - Herbaceous (soft-stemmed plants that die back in winter and regrow in spring): Remove spent blooms to promote rebloom later. Some plants tend to flop over after the first bloom and attempt to regrow from the base; in these cases, the old stems can be cut away in summer. As plants become dormant in the fall, remove dead leaves and stems.

Plant Attributes:

Mature Size: 12-24" tall x 6-12" wide
Utah Native: No
Plant Select: No
Pollinator Friendly: Yes
Localscapes: Infill Plant, Park Strip Plant
Foliage Interest: No
Foliage Colors: Green, Light Green
Bloom Colors: Blue
Bloom Seasons: Late Spring
Bloom Period: May - Jun

Growing Conditions:

Hardiness Zone: 4 to 8
Light Requirement: Full Sun (6+ hrs sun)
Irrigation Requirement:     Low (1/2" every 10-14 days)
Salt Tolerant: Unknown
Deer Resistant: Yes

Garden Location:

  • Planting Path
    • Nursery Shopping
  • Spring
  • Summer
  • Fall
  • Winter