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Allium 'Globemaster'

Also Known As

Globemaster Ornamental Onion

Plant type

perennial, bulb / corm / tuber

size

H: 24"-36"
W: 4"-6"

planting zones

4a-10b

More Options

Allium 'Globemaster' plant details

Allium 'Globemaster' is a broadleaf deciduous perennial bulb / corm / tuber with green foliage. In spring and summer lavender flowers emerge. Features grassy texture. Attracts bees, beneficial insects and butterflies making it an excellent addition to pollinator gardens. Grows well with sun - mostly sun and regular - low water. Drought tolerant once established. Prefers to be dry in summer, dry when dormant. Does well in average, gritty, rich and well-drained soil. A good option if you're seeking something heat tolerant and verticillium wilt resistant.

CHARACTERISTICS OF Allium 'Globemaster'

Plant type: perennial bulb / corm / tuber
Plant family: amaryllidaceae
Foliage: deciduous green
Mature size: 4 IN - 6 IN - wide, 24 IN - 36 IN - tall
Flowers: lavender blooms in spring and summer
Uses: border plant, cottage garden, cutting garden, rock garden

GROWING CONDITIONS for Allium 'Globemaster'

USDA Zones: 4a - 10b
Sun exposure: sun - mostly sun
Watering frequency: regular - low
Resistant to: deer and rabbit, heat and verticillium wilt
Soil needs: average, gritty, rich and well-drained

Nursery contributed plant descriptions

Ornamental onions offer intriguing spherical or egg-shaped inflorescences comprised of hundreds of tiny flowers. ‘Globemaster’ is absolutely one of the best alliums -- sparkling silvery pinkish purple softball to volleyball sized flowers that produce secondary florets which extend the bloom time. Blooms with the bearded irises in May and June on the West Coast. Available in spring as potted plants and in fall as dry bulbs.

By: Phoenix Perennials and Specialty Plants Ltd.

GIANT ORNAMENTAL ONION - Spectacular purple globes up to 10" across on 40" stems. Clumps of dark green foliage. Blooms in early summer, likes sun and is deer and critter resistant. Hardy in zone 4-8. Attracts butterflies.

By: Accents for Home and Garden

Has to be seen to be believed. The flowers spectacular heads up to a foot across. The seedhead is interesting even after flowering, and will evoke questions and comments long after the flowers fade. You can even paint the seedhead if you want to keep things colorful. Zones 5-9. Top Size 20-22 cm around bulbs. Normally very expensive at nearly $10 each.

By: Edens Blooms

"Master! I'm not worthy!" Ed. Note: Typical lament heard from other Alliums when planted near Globemaster with it's over-the-top silvery lilac softball to volleyball sized flowers. Recommend minimum distance of 15' from other Alliums unless sight restrictions exist.

By: Far Reaches Farm

Towering, full, lavender-purple globes on 3' stems create a strong focal point in the late spring garden. Long-lasting.

By: Dancing Oaks Nursery

Garden photo gallery of Allium 'Globemaster'

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By: Dancing Oaks Nursery

By: Intrinsic Perennial Gardens

Photo of Allium 'Globemaster' flower by Obsessive Neurotic Gardener

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By: Obsessive Neurotic Gardener

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By: Obsessive Neurotic Gardener

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Gardening facts about Allium 'Globemaster' plant

How to Grow Allium 'Globemaster'

Sun Exposure
- sun - mostly sun
Water Needs
- regular - drought tolerant
Water Needs
- dry when dormant
Water Needs
- dry in summer
Soil Needs
- average
- well-drained
- rich
- gritty
Special Situation
- heat tolerant
- verticillium wilt resistant

Features

Foliage Color
- green
Flower Color
- lavender
Wildlife
- beneficial insects
- bees
- butterflies
- deer resistant
- rabbit resistant
Flower Season
- summer
- spring
Foliage Season
- deciduous
Texture
- grassy