• A vibrant purple Allium Ambassador flower head in full bloom against a soft, green background.
  • A close-up shot of a variety of Allium bulbs, showing their different sizes, shapes, and colors.
Fall Preorder
Ships Fall 2026

Allium Bulbs (Giant) - Ambassador

These massive globe-shaped blooms are the deepest purple of all alliums

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Season
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About the Variety

Key Features

Frost Tolerant
Drought Tolerant
Container Friendly
Attracts Bees
Attracts Butterflies
Fast Growing
Easy to Grow
Perfect for Cut Flowers
Perfect for Dried Flowers
Deer Resistant
Rabbit Resistant
Rodent Resistant

Plant Details

BOTANICAL NAME

Allium

LIFE CYCLE

  • Perennial

LIGHT REQUIREMENT

  • Full Sun
  • Partial Shade

BLOOM SEASON

  • Late Spring through Early Summer

GROWTH HABIT

  • Clumping

PLANT HEIGHT

  • 36 to 48 inches

PLANT TYPE

  • Giant

COLOR

  • Purple

If you're looking to win the award for largest allium ever grown, you should probably invest in the Ambassador. It's the largest size commercially available and won't disappoint! The huge purple globes sit tall on sturdy stems and look like a field of pompons when planted close together. Children are drawn to their whimsical appearance, and pollinators think They're pretty great as well.

  • Easy to Grow Pollinator Attractor, Perfect for Beds, Borders and Cottage Gardens
  • Numerous Small Star-Shaped Blooms that Form Globe-Shaped Clusters
  • Wild Ornamental Flowering Onion, Deer-Resistant Perennial

Planting Information

PLANTING SEASON

  • Fall

PLANTING DEPTH

  • 6 inches

WATER NEEDS

  • Average

PLANT SPACING

  • 5 to 6 inches

HARDINESS ZONES

  • 4
  • 5
  • 6
  • 7
  • 8
  • 9

COVERAGE

Amount Recommended Coverage
3 Bulbs / Ships in Fall Up to 1.5 Sq. Ft
6 Bulbs / Ships in Fall Up to 3 Sq. Ft
9 Bulbs / Ships in Fall Up to 4.5 Sq. Ft

Planting Guide

View our Allium Planting Guide to learn more.

Ready to Grow

We guarantee that our seeds & bulbs will be true to type and ready to thrive. If something doesn't grow as expected, we will make it right. Questions? Call us at 855-440-2929

Allium Bulbs (Giant) - Ambassador

$56.99

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Allium Bulbs (Giant) - Ambassador FAQs

What size bulbs will I receive with Ambassador Allium?

The bulbs for Ambassador Allium measure 20+ cm in circumference, the largest size commercially available for this variety.

What is Ambassador Allium also known as?

Ambassador Allium is also known as Giant Onion, Ornamental Onion, Flowering Onion, and Ornamental Garlic.

Is Ambassador Allium resistant to animals or disease?

Ambassador Allium is deer resistant and rabbit resistant, meaning deer and rabbits generally avoid it due to its taste, texture, or aroma.

What type of bulb is Ambassador Allium grown from?

Ambassador Allium is grown from a bulb.

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