Allium Gladiator is one of the most impressive ornamental onions, producing giant spherical flower heads up to 20cm across in a stunning shade of mauve-purple. Each globe consists of hundreds of tiny star-shaped flowers that stand proudly on tall, strong stems, making a dramatic architectural feature in any garden. These long-lasting blooms are perfect for adding height and structure to borders, and they are also highly attractive to bees and pollinators.

A proud RHS Award of Garden Merit winner, Allium Gladiator is ideal for planting in groups for maximum impact, where their towering height creates a striking backdrop. They are easy to grow, preferring well-drained soil in full sun, and return reliably year after year. Not only do they make excellent cut flowers, but their seed heads can also be dried for long-lasting indoor arrangements.

Key Features
✔ Giant globe-shaped flower heads up to 20cm across
✔ Mauve-purple flowers loved by bees & pollinators
✔ RHS Award of Garden Merit winner
✔ Perfect for borders, naturalising & cut flowers
✔ Tall, striking stems add height & structure to gardens

Size
✔ Flowering height: Approx. 120cm / 48"

Useful for
Borders, naturalising in sunny spots, wildlife-friendly gardens, cut flower arrangements, and dried decorative seed heads.

Aftercare
Plant from August onwards in well-drained soil in full sun. Space bulbs 20cm apart and plant to a depth of around 15cm. Allow foliage to die back naturally after flowering to replenish the bulbs for the following season.