When to Plant Ornamental Allium in Zone 1B
USDA Zone
1B
Cities Covered
11
Avg Last Frost
Thursday, June 10, 2027
Plant Type
Fall Planted
📅 Planting Calendar for Zone 1B
Plant Bulbs (Fall) Thursday, June 10, 2027
Pro Tip: Plant Ornamental Allium bulbs about 6 weeks before Zone 1B's first fall frost, once soil cools — roots establish before the ground freezes.
🌿 Plant Details
Scientific Name Allium giganteum
Days to Maturity 210 days
Sun Requirements Full Sun (6+ hours)
Plant Spacing 8" apart
Cities in Zone 1B
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Growing Ornamental Allium in USDA Zone 1B
Ornamental Allium (Allium giganteum) grows well in USDA Hardiness Zone 1B. This zone includes cities like Arctic Village, Bettles Field, Chicken and 8 more.
The average last frost date for Zone 1B is around Thursday, June 10, 2027. Ornamental Allium is planted in fall — put bulbs in the ground around Thursday, June 10, 2027 so roots establish before winter.
Expect to harvest your Ornamental Allium approximately 210 days after planting.