• A vibrant purple Allium 'Gladiator' flower with a child smelling the blooms.
  • A close-up shot of a variety of Allium bulbs, showing their different sizes, shapes, and colors.
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Ships Fall 2026

Allium Bulbs (Giant) - Gladiator

Sizeable globe-shaped blooms are striking in fresh flower arrangements

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About the Variety

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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

The majestic Gladiator allium is a fall planted flower bulb that blooms from late spring into early summer. Like all alliums, Gladiator is best planted in clumps of 10 or more bulbs to create a stunning and unusual effect in the late spring garden. Gladiator alliums will produce sweet-scented globe-like flowers of up to 6 inches in diameter. Also, due to its impressive size and color, the Gladiator allium is excellent for either cut flower or dried flower arrangements.

  • 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
4 Bulbs / Ships in Fall Up to 2.5 Sq. Ft
8 Bulbs / Ships in Fall Up to 5 Sq. Ft
16 Bulbs / Ships in Fall Up to 12.5 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) - Gladiator

$34.99

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Allium Bulbs (Giant) - Gladiator FAQs

What size bulbs will I receive with Gladiator Allium?

The bulbs for Gladiator Allium measure 18-20 cm in circumference.

What is Gladiator Allium also known as?

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

Is Gladiator Allium resistant to animals or disease?

Gladiator 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 Gladiator Allium grown from?

Gladiator Allium is grown from a bulb.

How big will the blooms on Gladiator Allium get?

The blooms on Gladiator Allium grow up to 6 inches.

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