Allium Bulbs (Giant) - Globemaster

Allium Bulbs (Giant) - Globemaster

Plant in Fall Pre-Order: Ships Fall 2024
When will these bulbs ship to me?
Size Price Savings Quantity
2 Bulbs Fall-Planted | Ships in Fall $31.49
4 Bulbs Fall-Planted | Ships in Fall $56.69 10% Savings
10 Bulbs Fall-Planted | Ships in Fall $125.99 ($12.60/each) 20% Savings
Select options
Select one or more options above to add to cart.
  • A classic purple allium with a striking effect when planted en mass
  • Easy to Grow Pollinator Attractor, Perfect for Beds, Borders and Cottage Gardens
  • Numerous Small Star-Shaped Blooms that Form Globe-Shaped Clusters
  • Wild Ornamental Flowering Onion, Deer-Resistant Perennial
View full details



Life Cycle Perennial
Planting Season Fall
Color Purple
Growth Habit Clumping
Plant Height 36 to 48 inches
Bloom Season Early Summer
Bloom Size 10 In Across, 10 inches

Plant Characteristics Attracts Bees, Attracts Butterflies, Attracts Pollinators, Easy to Grow & Maintain, Fragrant
Use Container Garden, Cut Flower Garden, Dried Flowers
Growing Conditions Drought Tolerant, Outdoor
Plant Resistance Deer, Rabbit

About Allium Bulbs (Giant) - Globemaster


Seed Type Bulb
Plant Type Giant
Also known as Giant Onion, Ornamental Onion, Flowering Onion

One of the most lovely and hardy Allium around, Globemaster is regularly crowned "The Best" Giant Allium by both home gardeners as well as industry professionals. Sometimes called "flowering onions" we think the moniker doesn't do Globemaster any justice! A prized ornamental, its blooms regularly reach 10" across and its luminous color seems to shift between different shades of purple depending on the light. A must have for any gardener!

Planting Information

Planting Allium Bulbs (Giant) - Globemaster

Planting Season Fall
Light Requirement Full Sun, Partial Shade
Planting Depth 6 inches deep
Plant Spacing 5 to 6 inches
Plant Height 36 to 48 inches
Water Needs Average
Hardiness Zones 4, 5, 6, 7, 8, 9
Bulb Size 20-22+ cm circumference - Largest Size Commercially Available
View our Allium Planting Guide to learn more.


Amount Recommended Coverage
2 Bulbs / Fall-Planted | Ships in Fall Up to 1 Sq. Ft
4 Bulbs / Fall-Planted | Ships in Fall Up to 2 Sq. Ft
10 Bulbs / Fall-Planted | Ships in Fall Up to 5 Sq. Ft

Companions Plants

Companion Plants for Allium Bulbs (Giant) - Globemaster