Allium caeruleum Medium-height Allium

bulbs
$5.50
Item: 6401-A
$21.00
Item: 6401-B
$39.00
Item: 6401-C
Allium caeruleum
Late spring to early summer blooms.

Gorgeous flax-blue florets form a dense 1–2" umbel. This hardy variety from Siberia adds truly striking color to cutflower arrangements. Gradually forms large clumps that are sure to add early interest to the garden. Formerly A. azureum, also called Blue Globe Onion and we used to list it as Blue of the Heavens.

Zone 3-8. 5cm+ bulbs.

12-28" tall.
ships in fall

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Quick Details
Bloom Time
late spring to early summer
Pollinator Friendly
Yes
Bloom Color
flax blue
Hardy in Zones
3–8
Height
12-28"
Compare
Compare with other Medium-height Alliums
Variety Product Type Bloom Time Bloom Color Hardy to Zone Maximum Hardiness Zone Height
Allium atropurpureum bulbs late spring to early summer dark burgundy-purple 4 7 24-34"
Allium caeruleum bulbs late spring to early summer flax blue 3 8 12-28"
Arctic Snow bulbs late spring to early summer white 4 8 14-16"
Drumsticks bulbs early to midsummer burgundy-purple 4 8 20-30"
Ping Pong bulbs early to midsummer white 4 9 20-24"
Graceful Beauty bulbs late spring to early summer white 4 9 14-18"
Purple Rain bulbs late spring to early summer deep purple 4 7 24-36"
Purple Sensation bulbs late spring to early summer deep violet-purple 4 8 24-36"
Allium schubertii bulbs late spring to early summer rosy pink to violet 4 8 14-16"
Sicilian Honey Garlic bulbs late spring to early summer purple-centered white 5 9 24-36"
Star of Persia bulbs late spring to early summer violet 4 8 18-24"
Fedco's Fireworks Alliums Collection bulbs late spring to early summer multi-colored 4 8 14-36"
Additional Information

Flowering Onions

The large Allium genus is characterized by small six-petaled florets held in umbels—large or small, loose or tight. Sweet-smelling blooms make great fresh cutflowers or dried winter arrangements; only if crushed will they smell like onion. Alliums are deer resistant and prefer full sun and well-drained soil, but can tolerate some shade. Fertilize in early spring to promote leaf and bulb growth. Leaves may die back before or during blooming. Most types bloom in late spring to early summer, except where noted.

Shipping

Items from our perennial plants warehouse will ship around late September through October. Bulbs can be planted successfully up until your ground freezes.

Note to Alaska and far north customers: We cannot guarantee an early shipment, so please plan accordingly and order early.

We cannot accommodate specific ship date requests or guarantee your order will arrive by a certain day.