Allium 'Gladiator' is a majestic ornamental onion, prized for its large, spherical blooms composed of hundreds of tiny star-shaped, purple flowers. These impressive flower heads are borne atop tall, sturdy stems, rising above strap-shaped green foliage that typically begins to wither before the blooms emerge in late spring to early summer. 'Gladiator' is a hybrid allium, known for its robust growth and large, eye-catching blooms that can reach up to 6 inches in diameter. This plant is ideal for adding height and architectural interest to borders, beds, and cottage gardens. It also serves as an excellent attractant for bees and butterflies, making it a valuable addition to pollinator-friendly gardens.

Why we like it

• Large, purple, spherical blooms add dramatic height and interest.
• Attracts bees, butterflies, and other pollinators.
• Low maintenance and resistant to deer and rabbits.

What to know

• Thrives in full sun and well-drained soil.
• Plant bulbs in autumn, 15-20 cm deep, with pointed ends up.
• Water regularly during the growing season, especially in dry spells.
• Allow foliage to die back naturally after flowering to feed the bulbs for next year.
• Consider planting in groups for a more dramatic display.

Flower Colour

• Purple

Flowering Months

• May, June

Eventual Height and Spread

• Height: approximately 100-150 cm
• Spread: approximately 20-30 cm