Allium 'Giganteum'
Allium 'Giganteum'
Allium 'Giganteum'
Allium 'Giganteum'
Allium 'Giganteum'
Allium 'Giganteum'
Allium 'Giganteum'

Allium 'Giganteum'

Allium 'Giganteum'

1 bulb — £4.95

Order today, receive in September

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Delivery schedule

Orders placed before 1 September 2022
You can expect your order in September 2022

Orders placed 1 September - 15 October 2022
You can expect your order in October 2022

Orders placed 16 October - 15 December 2022
You can expect your order within 10 business days

Free delivery on UK orders over £50

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Shipping to the UK

UK orders over £50
Free shipping

UK orders under £50
£4.99

Northern Ireland orders under £50
£6.99

More info

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Description

In today’s gardening world, where garden centres invariably stock very compact plants that display well in the pot, finding tall-flowering plants can be difficult. But not if you choose bulbs – and the giant ornamental onion Allium 'Giganteum' should top your list. Its flower stems reach a height of 1-1.5m, and each sturdy stem is topped with a perfect globe of purple florets. The effect is striking to say the least!

To get the best out of your giant Alliums, plant Allium 'Giganteum' in groups, either near the back of flowering borders, or on their own. Now, it’s just a matter of waiting till late-spring for flowering magic to happen.

Key features

  • Good for cutting

  • Comes back every year

  • Attractive to wildlife

  • Loved by pollinators

  • Thrives well in full sun

  • Packed in paper bags

  • Low maintenance

  • Fully hardy

  • Rodent resistant

Specs & details

  • Botanical name

    Allium giganteum

  • Flower colour

    Purple

  • Leaf colour

    Green

  • Bulb size

    28/+

  • Established height

    1.2-1.5m

  • Established spread

    30-50cm

  • Plant spacing

    25 bulbs per m2

  • Habit

    Upright

  • Life cycle

    Perennial

  • Hardiness

    Fully hardy

  • Years to establish

    1st year

  • Sunlight

    Full sun

  • Position

    Sheltered

  • Suitable for

    Large containers
    Borders
    Gravel gardens
    Wildlife gardens
    Cottage gardens
    Low maintenance gardens
    Cut flower gardens

  • Soil acidity

    Any

  • Soil moisture

    Free draining

  • Soil type

    Loam
    Sandy
    Clay
    Stony
    Multipurpose compost

  • Growing skill

    Easy to grow

  • Scented

    No

  • Pollinator-friendly

    Yes

  • Mouse resistant

    Yes

  • Rabbit resistant

    Yes

  • Deer resistant

    Yes

  • Toxicity

    Skin/eyes irritant

Plant calendar

JanFebMarAprMayJuneJulyAugSepOctNovDec
  • Planting
  • Flowering

Other information

  • Orders placed before 1 September 2022
    You can expect your order in September 2022

    Orders placed 1 September - 15 October 2022
    You can expect your order in October 2022

    Orders placed 16 October - 15 December 2022
    You can expect your order within 10 business days

      • Plant your Allium 'Giganteum' bulbs from mid to late autumn;

      • Plant in borders or containers in sun or partial shade;

      • Plant your bulbs two to three times as deep as the bulb is high;

      • Space the bulbs about twice the bulb diameter apart;

      • Place the Allium 'Giganteum' bulbs with the pointed side facing upwards.

      Read all Allium planting & care instructions

    World class bulbs

    We cooperate with the best growers to supply world class bulbs and plants.

    We ♥ our planet

    We reduce waste by using recyclable packaging whenever we are able.

    We've got your back

    Excellent customer care: Our service is rated 4.8 out of 5 by our customers.

    Spoilt for choice

    Biggest ever selection of
    flower bulbs and plants online. Lots of exclusive varieties.

    Size matters

    You can expect top size flower bulbs and bare-root plants. Always.