Allium Giganteum | 20 pcs

Allium Giganteum is a spectacular ornamental onion that creates dramatic vertical interest in any landscape design. Standing majestically at 4-5 feet tall, these impressive bulbs produce enormous globe-shaped flower heads of vibrant purple that become a focal point in late spring gardens. Perfect for commercial landscaping projects, these wholesale bulbs offer both visual impact and low maintenance benefits.

Stunning features and benefits

• Produces massive 5-6 inch diameter spherical blooms that create a floating effect above the garden
• Reaches impressive heights of 3-5 feet, adding dramatic vertical architecture to landscape designs
• Drought-tolerant once established, reducing maintenance and watering requirements
• Naturally deer and rabbit resistant, ideal for problem areas where wildlife pressure is high
• Attracts beneficial pollinators including bees and butterflies to enhance garden ecosystems
• Long-lasting blooms that transition beautifully to dried seed heads for extended seasonal interest

These architectural beauties make a bold statement when planted in groups, creating purple spheres that appear to float above companion plantings.

Planting and growing information

Plant these premium-sized 20/+ cm bulbs in fall, placing them 8 inches deep and 12 inches apart in well-drained soil. Allium Giganteum thrives in full sun to partial shade in USDA zones 4-9. The grey-green basal foliage emerges early, followed by tall sturdy stems topped with spectacular purple blooms in late spring. After flowering, the foliage naturally dies back as the plant goes dormant for summer.

Order your wholesale bulbs today

As a trusted wholesale supplier since 1925, DeVroomen offers these premium Allium Giganteum bulbs in convenient packages of 20 bulbs for landscape professionals, garden centres, and contractors. Our high-quality Dutch bulbs are specifically selected for superior performance in American gardens. Place your wholesale order today to secure these impressive ornamental onions for your upcoming landscape projects and retail offerings. Available exclusively for trade customers.

• EAN code
  42803
• Height
  100+cm
• Catalog
  Retail
• Light Requirements
  Partial Shade, Sun
• Size
  20/+
• Uses
  Pollinator
• Shipping Time Frame
  Fall
• Bloom Time
  Spring