Allium Giganteum Flower Seeds
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- About About
- Planting Information Planting
- Companion Plants Companion
Features
Life Cycle
Perennial
Planting Season
Fall
Growth Habit
Upright, clumping
Flavor Profile
Onion-like (not for eating)
Plant Characteristics
Tall stems, globe blooms
Use
Ornamental, cut flowers
Growing Conditions
Well-drained, fertile soil
Harvest Advantages
Long stems, showy blooms
Plant Resistance
Deer, rodent resistant
About Allium Giganteum Flower Seeds
Allium giganteum
Seed Names
Allium Giganteum, Giant Allium
Seed Type
Open-pollinated, non-GMO
Allium Giganteum, or Giant Allium, is a striking ornamental known for its towering height and dramatic globe-shaped purple flowers. Blooming in late spring to early summer, these showstoppers are perfect for borders and pollinator gardens. Though part of the onion family, they’re grown purely for their bold aesthetic appeal.
Planting Information
Light Requirement
Full sun
Planting Depth
1/4 inch
Sowing Method
Outdoors or cold frame
Plant Spacing
12–15 inches
Days to Maturity
210–365 days
Soil Preparation
Cold stratify 60 days
Hardiness Zones
5–9
Water Needs
Low to moderate
Planting Season
Fall
Coverage
Seed Count
Recommended Coverage
100
Up to 40 sq. ft.
500
Up to 200 sq. ft.
1000
Up to 400 sq. ft.