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Special Offers

16 tulip bulbs £2.99 with any order

48 allium bulbs £3.99 with any order

4 poppy bare root plants for £4.99 with orders over £30

Allium CollectionOrnamental Onion

2 Options from £2.00

Hardy Bulb
What is Hardy Bulb?
Plant that grows from an underground storage organ.
Generally supplied in a dormant condition with no top growth.
Capable of withstanding outdoor winter temperatures down to -15C.
1 Review

4 unusual species in one collection

A magnet for pollinating insects

Perfect for rockeries and gravel gardens

200 allium bulbs - 50 of each varietySave £37.98ONLY £2 A PACK! £39.98 £2.00 Despatch: within 3 days
100 allium bulbs - 25 of each variety £9.99 Despatch: within 3 days
Please note: This product cannot be delivered outside the United Kingdom.
Description How to Grow More Info Delivery Reviews

Alliums are prized by gardeners for their stiff, upright habit that lends structure and colour to early summer borders. This superb collection brings together 4 unusual species which are particularly well suited to gravel gardens and rockeries. When planted in dense groups they create an eye-catching display that bridges the gap between spring bulbs and summer perennials. Like all Alliums, they are easy to grow and virtually maintenance free once established.

Allium Collection comprises:

  • Allium sphaerocephalon - Unusual oval shaped, purple-green flower heads. Height: 90cm (36"). Spread: 8cm (3").
  • Allium moly - Dense clusters of star-shaped, golden yellow flowers from late spring. Height: 15cm (6"). Spread: 5cm (2").
  • Allium neapolitanum - Loose heads of starry white blooms. Height: 40cm (16"). Spread: 10cm (4")
  • Allium ostrowskianum - Delicate pink, bell-shaped blooms in early summer. Height: 20cm (8"). Spread: 5cm (2").

Cottage Gardens, Wildlife Gardens, Low Maintenance Garden, Cut Flower Garden

Hardy

full sun

easy

easy

Thompson & Morgan strives to ensure that all its plants are delivered to you in the perfect condition for planting. Sadly, the time it takes to deliver to certain locations in the UK means that we can't guarantee this, so regretfully we are unable to ship live plants to the following areas: HS, IV41-IV49, IV51, IV55-56, KW15-KW17, PA34, PA41-48, PA60-PA78, PA80, PH40-PH44, TR21-TR24, ZE1-ZE3

200 allium bulbs - 50 of each variety (KB2096)
100 allium bulbs - 25 of each variety (KB2095)

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Flowering Months
Alliums require little maintenance. Leave stems of faded allium flowers intact to enjoy their spectacular seedheads in autumn. Divide overcrowded clumps of alliums after flowering. Caution: irritant to skin and eyes.
Alliums thrive in light sandy, well drained soil in full sun. Avoid planting in cold wet soils as the bulbs are prone to rot in these conditions. Plant allium bulbs at a depth of 10cm (4") and a distance of 10cm (4") apart. A slow release fertilizer can be added to poor soils at the time of planting to improve fertility. When growing alliums, plant them where the leaves of other plants will cover the base of their stems. This will hide the old foliage which dies back before flowering begins.

Delivery

Seeds and garden supplies will normally be delivered within the time period stated against each product as detailed above. Plants, bulbs, corms, tubers, shrubs, trees, potatoes, etc. are delivered at the appropriate time for planting or potting on. Delivery times will be stated on the product page above, or in your order acknowledgement page and email.

Orders for packets of seed incur a delivery charge of £1.95.

Orders which include any other products will incur a delivery charge of £4.95.

Where an order includes both packets of seeds and other products, a maximum delivery charge of £6.90 will apply - regardless of the number of items ordered.

Large items may incur a higher delivery charge - this will be displayed in your shopping basket.

Please see our Delivery page for further details, and more information on different charges that may apply to certain destinations.

For more information on how we send your plants please visit our Helpful Guide on plant sizes.

Satisfaction Guaranteed

For your complete peace of mind, our Home and Garden products may be returned to us within 30 days of purchase for a refund of the purchase price. Items must be returned unused, at your cost and in mint condition. All items carry a manufacturer's 12 month defects warranty.

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