We're offering you a 105 or 210 Mixed Allium Bulbs! for £7.99, saving you up to 47% off Thompson and Morgan's's price of £14.99 (correct as of 23.09.2025).

Add Structure & Colour to Your Garden with Mixed Allium Bulbs

Transform your outdoor space with this carefully curated mix of Allium species—renowned for their dramatic globe-shaped blooms and easy-care nature. Alliums are hardy perennials from the onion family (Amaryllidaceae) that deliver bold vertical accents and vibrant colours from late spring into early summer.

• Allium ampeloprasum: Tall (up to 100cm) pale mauve/white globes—ideal for borders and drying.
• Allium cowanii: Starry white, scented flowers (40cm), perfect for pollinators and cutting.
• Allium karataviense: Compact (25cm) with broad blue-green leaves and pink-white flowers—RHS AGM winner.
• Allium moly: Cheerful yellow clusters (15cm) loved by butterflies; great for edging and rockeries.
• Purple Sensation: Bold violet-purple globes (90cm), striking in borders with lasting autumn seedheads.
• Allium caeruleum: Bright blue flowerheads (60cm) add vivid colour; excellent as cut flowers.
• Graceful Beauty: Elegant white blooms blushed pink with violet stamens (30cm); ideal for containers.

Why Choose Mixed Alliums?

• Sustained Flowering: Enjoy a succession of blooms from late spring through early summer.
• Biodiversity Booster: Attracts bees, butterflies, and other pollinators to support your local ecosystem.
• Drought Tolerant: Once established, alliums need little watering—perfect for low-maintenance gardening.

Growing Guide & Care Tips

• Planting Time: Plant bulbs in autumn (September–November) before the first frost.
• Soil Preferences: Prefers well-drained soil; avoid waterlogged sites. Alliums tolerate a range of soil types but thrive in neutral to slightly alkaline conditions (pH 6–7.5).
• Sun Requirements: Full sun is best for strong stems and maximum flowering.
• Caring For Alliums: Water after planting; mulch in spring. Deadhead faded blooms or leave seedheads for autumn interest. Fertilise lightly in spring with a balanced fertiliser if desired.

Lifestyle & Design Ideas

• Create bold swathes in borders or meadows by mass planting different heights together.
• Add to mixed beds with ornamental grasses or late-spring tulips for a layered look.
• Pots and containers suit compact varieties like karataviense or Graceful Beauty—perfect for patios and small gardens.

FAQs

• When is the best time to plant allium bulbs?
  The ideal planting time is autumn (September–November), before the ground freezes.
• How tall do these alliums grow?
  This mix includes varieties ranging from compact (15cm) up to tall border types (100cm).
• Do alliums need special care?
  No—simply plant in well-drained soil in full sun. They are drought tolerant once established and require little maintenance beyond deadheading if desired.