Ornamental onion

Allium 'Globemaster'

Photo/Illustration: 
Chris Curless
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Ornamental onion (Allium 'Globemaster')
AL-ee-um
Genus:  Allium
Allium 'Globemaster' is a true showstopper, growing to about 32 inches tall. Very large, majestic purple spheres up to 8 inches across bear numerous star-shaped, deep lilac flowers in May and June.
Care:  Provide full sun and well-drained, average to dry soil.
Propagation:  Sow seed in spring in containers or in situ. Divide clump-forming plants in spring.
Problems:  Bulb rot in damp conditions. Onion fly and thrips.

Overview

Height
3 ft. to 6 ft.
Spread
6 in. to 12 in.
Growth Habit
Clumps
Growth Pace
Fast Grower
Light
Full Sun Only
Moisture
Dry to Medium
Maintenance
Low
Characteristics
Attracts Butterflies,
Showy Seed Heads
Bloom Time
Early Summer,
Late Spring,
Spring,
Summer
Flower Color
Purple/Lavender Flower
Uses
Beds and Borders
Style
Cottage Garden,
Rock Garden
Seasonal Interest
Summer Interest
Type
Bulbs

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