Allium caeruleum Gorgeous flax-blue florets form 1½" dense umbels. Hardy variety from Siberia gradually forms large clumps. Feed in early spring to promote leaf and bulb growth; then the leaves die back in midspring before flowering begins. Also called Blue Globe Onion and Azure-Flowered Garlic; was formerly Allium azureum.
12–16" tall. Late Spring to Early Summer blooms, Z3-8. 5cm/up bulbs.
6401 Blue-of-the-Heavens Flowering Onion
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Alliums prefer full sun and well-drained soil.
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 whether you cut them before or after the green seed pods form.
The same genus as all edible onions, garlic and chives. Most repel slithery, winged and legged pests—including deer, and only when crushed do they smell like onion.
Descriptions and Codes
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