Plant Calculator

Enter the approximate length and width of the area you will be planting and click 'Calculate' to determine how many Allium 'Globemaster' you will need.

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*Correct and successful spacing is complex and depends on project conditions.

Allium 'Globemaster'

Ornamental Onion

Allium Globemaster is a stunning perennial bulb known for its impressive, globe-shaped clusters of vibrant purple flowers. Blooming in late spring to early summer, this dramatic plant attracts butterflies and adds a touch of elegance to any garden. With its sturdy stems and striking appearance, Allium Globemaster is perfect for borders or standalone displays. Its resilience and low maintenance needs make it a favorite among gardeners looking to enhance their landscape with eye-catching color and texture.

  • Huge lilac purple balls can reach 10" wide
  • Blooms sit atop 3'+ stems
  • Nice wide gray green blades of foliage

  • Category: Bulbs
  • Hardiness Zone: 4-9
  • Height: 36-48 in
  • Spread: 12-15 in
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Exposure
Full Sun
Soil Moisture
Average Water
Attributes
Edible
Low Maintenance
Naturalizing
Growing & Maintenance Tips for Allium 'Globemaster'

To care for Allium Globemaster, ensure it is planted in well-drained soil with full sun exposure. Water the plant regularly during the growing season, but allow the soil to dry out between waterings to prevent root rot. After flowering, let the foliage die back naturally to nourish the bulb for next year's growth.