Ornamental onion

Allium giganteum

Photo/Illustration: 
Jennifer Benner
Photo/Illustration: 
Jennifer Benner
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Ornamental onion (Allium giganteum)
AL-ee-um jy-GAN-tee-um
Genus:  Allium
In summer, this plant bears large rounded flower heads up to 4 inches across with a multitude of star-shaped lilac-pink flowers.
Care:  Grow in full sun and dry to average, well-drained 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
1 ft. to 3 ft.
Growth Habit
Clumps
Growth Pace
Fast Grower
Light
Full Sun Only
Moisture
Dry to Medium
Maintenance
Low
Characteristics
Attracts Butterflies,
Showy Flowers,
Showy Seed Heads
Bloom Time
Early Summer,
Late Spring,
Spring,
Summer
Flower Color
Pink Flower,
Purple/Lavender Flower
Uses
Beds and Borders
Style
Cottage Garden,
Rock Garden
Seasonal Interest
Summer Interest
Type
Bulbs

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