Life Cycle Perennial
Planting Season Fall
Color Purple
Growth Habit Clumping
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 Globemaster - Allium Bulbs (Giant)


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

Can you say amazing? The beautiful blooms on the Globemaster allium reach up to 8 inches across! Each bloom contains dozens of purple star-shaped flowers, and the shades of purple change with the light. Mesmerizing! Plant Globemasters in clumps of 10 or more bulbs in the fall, and by late spring your garden will be a showstopper. The blooms can last until late summer, and the ornamental seed heads will stay around for weeks after the flower has gone. Like most alliums, Globemasters are sun-loving and, being part of the onion family, give off a scent that keeps pests away. They are great pollinators—bees and butterflies love them!

Planting Information

Planting Globemaster - Allium Bulbs (Giant)

Planting Season Fall
Light Requirement Full Sun, Partial Shade
Planting Depth 6 inches deep
Plant Height 36 to 48 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.


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 Globemaster - Allium Bulbs (Giant)

Aesthetic or Culinary