We're offering you a Allium Bulbs Mixed - 100 or 200 Pack for £8.99, saving you up to 47% off Thompson and Morgan's's price of £16.99 (correct as of 10.09.2025).

Alliums come in various sizes, shapes, and colors, making them a popular choice for gardeners looking to add dramatic and intriguing elements to their landscapes. Choose from 100 or 200 Mixed Allium Bulbs

Transform Your Garden with Spectacular Allium Bulbs

Add instant drama and colour to your garden with this premium mixed collection of perennial Allium bulbs. Belonging to the onion family (Alliaceae), Alliums are celebrated for their globe-shaped flower heads and strong vertical presence. These bulbs are a favourite among gardeners seeking long-lasting blooms and architectural interest.

• Allium roseum: Delicate pale pink, cup-shaped flowers on slender stems. Height: 60cm.
• Allium caeruleum: Bright blue starry flowers atop upright stems. Height: 60cm.
• Allium sphaerocephalon: Unique oval purple-green heads that sway beautifully among grasses. Height: 60cm.
• 'Purple Sensation': Iconic purple globes up to 8cm across. Height: 90cm.
• 'Mount Everest': Striking white spheres with over 50 star-shaped blooms. Height: up to 90cm.
• Allium moly: Compact clusters of golden yellow flowers in late spring. Height: 15cm.

Why Choose Mixed Alliums?

• Diverse Heights & Colours: Create layers of interest by mixing tall and compact varieties in one border.
• Pest Resistant: Alliums are naturally unappealing to deer and rabbits.
• Biodiversity Boost: Their nectar-rich blooms attract bees, butterflies, and other pollinators.

Growing Guide & Care Tips

• Planting Time: Autumn is ideal—plant bulbs from September through November before the first frost.
• Soil Preferences: Well-drained soil is essential; Alliums dislike soggy roots. Amend heavy soils with grit or sand if needed.
• Light Requirements: Full sun is best for strong stems and vibrant blooms.
• Caring For Your Alliums: Water after planting; once established, they tolerate dry spells well. Remove faded flower heads in late summer if you wish to prevent self-seeding or leave them for winter structure.

Design Ideas & Companion Planting

• Mingle with ornamental grasses or perennials like Salvia, Nepeta, or Geranium for a naturalistic look.
• Add height at the back of borders or create a focal point in containers with taller varieties like 'Purple Sensation' or 'Mount Everest'.

FAQs

• When should I plant these allium bulbs?
  Plant in autumn (September–November) before the ground freezes for best results next spring and summer.
• How deep should I plant allium bulbs?
  Plant bulbs at a depth roughly three times their own height—generally about 10–15cm deep—in well-drained soil.
• Do alliums come back every year?
  Yes! Alliums are hardy perennials and will return each year with minimal maintenance if left undisturbed in the ground.