previous
  • DIY A-Frame Veggie Trellis
    DIY A-Frame Veggie Trellis
  • Building Better Borders
    Building Better Borders
  • Get your FREE Everyday Roses download now!
    Get your FREE Everyday Roses download now!
  • NEW Video Series: There's a Better Way
    NEW Video Series: There's a Better Way
  • Plant Finder: Spring Plants
    Plant Finder: Spring Plants
  • Planting the Right Way
    Planting the Right Way
  • 20 Gardenworthy Self-Sowers
    20 Gardenworthy Self-Sowers
  • How to Grow Mustard
    How to Grow Mustard
  • 10 Seed-Starting Tips
    10 Seed-Starting Tips
  • 10 Combinations for Shade
    10 Combinations for Shade
  • Pantone Color of the Year 2014: Radiant Orchid
    Pantone Color of the Year 2014: Radiant Orchid
  • Garden Design Basics
    Garden Design Basics
  • Go Green on the Patio
    Go Green on the Patio
  • Homegrown / Homemade
    Homegrown / Homemade
  • Using Containers as Elements of a Design
    Using Containers as Elements of a Design
  • Pick Plants for Fragrance
    Pick Plants for Fragrance
  • Rex Begonias
    Rex Begonias
  • Black Plants Done Right
    Black Plants Done Right
  • Indoor Seed Starting Materials List
    Indoor Seed Starting Materials List
  • Bold and Beautiful Zinnias
    Bold and Beautiful Zinnias
  • 3 Ways to Design with Containers
    3 Ways to Design with Containers
  • Seed Starting in Speedling Trays
    Seed Starting in Speedling Trays
next

Allium 'Globemaster' (Ornamental onion)

Allium 'Globemaster' Photo/Illustration: Chris Curless

(Based on 2 user reviews)

Rate this plant

Plant Showcase - from our advertisers


Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11
Botanical Name: Allium 'Globemaster' AL-ee-um Common Name: Ornamental onion 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.
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, Fall Interest
Type Bulbs

Plants you might also like

Allium caeruleum Allium caeruleum
(Blue globe onion)
Be the first to rate this plant
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This plant produces dense clusters of bright blue flowerheads up to 1 inch wide. Its leaves clasp its stem and die back before flowering.

Allium moly and cvs. Allium moly and cvs.
(Golden garlic, Lily leek)
Be the first to rate this plant
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

For long-lasting bright yellow flowers that sparkle in midsummer, try Allium moly. It is robust, hardy, and an excellent cut flower, naturalizing and increasing happily in the sun in most garden soils. The cultivar 'Jeannine' flowers earlier and produces larger umbels on sturdier stems.

Allium senescens Allium senescens
(Ornamental onion)
Be the first to rate this plant
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This plant has thin, strap-like foliage that tends to twist. It produces up to 30 long-lasting, 12- to 40-inch-tall pink or lilac flowers in mid- to late summer.

Allium senescens var. glaucum Allium senescens var. glaucum
(Circle onion)
Be the first to rate this plant
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This plant's silver-blue leaves swirl like a cowlick. It produces flowers that are lollipop-shaped, pink with bright yellow accents and about 16 inches tall.

Camassia leichtlinii ssp. suksdorfii 'Blue Danube' Camassia leichtlinii ssp. suksdorfii 'Blue Danube'
Be the first to rate this plant
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Spikes of violet, star-shaped flowers top stems reaching from 2 to 4 feet in late spring. The species is native to western Oregon. 'Blue Danube' would be beautiful in a border, meadow, or containers. Camassia make good cut flowers.