About

Features

Life Cycle Perennial
Planting Season Fall
Color Purple
Growth Habit Clumping
Bloom Season Early Summer

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 Giganteum - Allium Bulbs (Giant)

Allium

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

The Giganteum allium is true to its name. Towering at up to 5 feet tall, these lollipop lookalikes will really make your late spring and early summer garden stand out! Their gorgeous globes are made up of clusters of tiny, star-shaped purple flowers. Bees and butterflies love them, and their onion-y aroma keeps the pests away! Giganteums look great as a garden backdrop. They are perfect in flower arrangements, too—fresh or dried.

Planting Information

Planting Giganteum - Allium Bulbs (Giant)

Planting Season Fall
Light Requirement Full Sun, Partial Shade
Planting Depth 6 inches deep
Plant Height 48 to 60 inches
Plant Spacing 5 to 6 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.

Coverage

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

Companions Plants

Companion Plants for Giganteum - Allium Bulbs (Giant)

Aesthetic or Culinary