Allium Globemaster is one of the most spectacular ornamental alliums, producing enormous globe-shaped flower heads measuring up to 15cm across and packed with hundreds of rich violet-purple star-shaped florets. Flowering during May and June, these impressive blooms are carried on strong stems reaching approximately 80cm in height, creating striking architectural displays while attracting bees, butterflies and other beneficial pollinators.

A true statement plant, Allium Globemaster is perfect for perennial borders, cottage gardens, gravel gardens and contemporary planting schemes. Its exceptionally long-lasting flowers combine beautifully with roses, peonies and ornamental grasses, while the decorative seed heads continue to add structure long after flowering. The blooms are also highly prized for fresh and dried flower arrangements.

Key Features
✓ Giant violet-purple flower heads up to 15cm across
✓ Flowers during May and June
✓ Flowering height of approximately 80cm
✓ Long-lasting architectural blooms
✓ Perfect for borders and feature planting
✓ Attractive to bees and pollinators
✓ RHS Award of Garden Merit
✓ RHS Plants for Pollinators
✓ Excellent for cut and dried flower arrangements

Size
✓ Flowering height: approximately 80cm (32 inches)
✓ Flower head diameter: up to 15cm (6 inches)

Planting & Growing
✓ Planting time: September to December
✓ Flowers: May to June
✓ Position: full sun
✓ Soil: fertile, well-drained soil
✓ Planting depth: approximately 15–20cm (6–8 inches)
✓ Spacing: approximately 20–25cm (8–10 inches) apart
✓ Suitable for borders, cottage gardens, gravel gardens and containers

Aftercare
Allow the foliage to die back naturally after flowering so the bulb can replenish its energy for the following year. Leave the attractive seed heads in place to provide lasting architectural interest or cut them for dried flower displays. Established clumps can remain undisturbed for many years.