Thompson & Morgan

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Allium 'Big Impact Mixed'

Ornamental Onion

Hardy Bulb

  • Customer favourite
Add height and structure to your borders with these superb summer-flowering bulbs. Undemanding and easy to grow, Allium 'Big Impact Mixed' will give you a wonderful assortment of flower shapes, sizes and colours that are superb for cut flower displays. Don't forget that their attractive and architectural seed heads will also add autumnal interest later in the season. Height ranges from: 60 -90cm (24-36"). Spread: 15cm (6"). Bulb size: 14/16.

Useful links:

View 4 for 3 bulbs rangeHow to grow bulbs, corms and tubers

Ideal For:
cottage gardens, wildlife gardens, low maintenance garden, cut flower garden
Flowering Period:
May, June
Position:
full sun
    • 8 bulbs

    •  
    • Despatch: By end of September 2015
    • £9.99
    • 16 bulbs

    • SAVE £4.99  
    • Despatch: By end of September 2015
    • £19.98 £14.99
    • 32 bulbs

    • SAVE £19.97  
    • Despatch: By end of September 2015
    • £39.96 £19.99
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.
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.

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 and will be stated on the product page or in your order acknowledgement page and email.


Orders for packets of seed incur a P&P charge of £1.95.
Orders which include any other products will incur a P&P charge of £4.95.
Where an order includes both packets of seeds and other products a maximum P&P charge of £6.90 will apply - regardless of the number of items ordered.


Please see our Delivery / P&P page for further details and details of any surcharges that may apply to certain destinations.

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