Allium triquetrum
Allium triquetrum
Allium triquetrum
Allium triquetrum
Allium triquetrum
Allium triquetrum
Allium triquetrum
Allium triquetrum
Allium triquetrum

Allium triquetrum

"Three-cornered leek"

Allium triquetrum

20 bulbs — £4.80

Autumn planting season is currently closed
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Delivery schedule

Orders placed before 1 September 2024
You can expect your order in September 2024

Orders placed 1 September - 15 October 2024
You can expect your order in October 2023

Orders placed 16 October - 15 December 2024
You can expect your order within 10 business days

Available for (pre)ordering again in May
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
£5.99

More info

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Description

Fill out a space and supress weeds with this effective ground-covering Allium triquetrum. Flowering in spring with elegant white blooms, Three-cornered Leek is a good plant for adding interest to a tricky planting area which is otherwise bare, such as along hedges and under trees. If you’re looking to attract pollinators to the garden or have a designated wild area on your patch, this allium provides plenty of nectar-rich blooms that bees will love!

The bulbs of Allium triquetrum multiply over the years and the flowers also set seed, meaning this variety naturalises quickly. Spreading to form dense clumps over time, it fills an empty space with effective leaf coverage as well as more and more blooms each spring. Allium triquetrum can’t be planted in the wild, but you can let it loose in your garden where there’s room for it to run riot!

A. triquetrum has various common names, ranging from triquetrous leek to three-cornered leek and three-cornered garlic.

Key features

  • Good for cutting

  • Comes back every year

  • Attractive to wildlife

  • Loved by pollinators

  • Packed in paper bags

  • Low maintenance

  • Fully hardy

  • Rodent resistant

Specs & details

  • Botanical name

    Allium triquetrum

  • Flower colour

    White

  • Bulb size

    5/+

  • Established height

    20-30cm

  • Established spread

    10-20cm

  • Plant spacing

    100 bulbs per m2

  • Leaf colour

    Green

  • Habit

    Upright

  • Life cycle

    Perennial

  • Hardiness

    Fully hardy

  • Years to establish

    1st year

  • Sunlight

    Full sun
    Partial shade

  • Position

    Sheltered

  • Suitable for

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

  • Soil acidity

    Any

  • Soil moisture

    Free draining

  • Soil type

    Loam
    Sandy
    Stony
    Multipurpose compost
    Loam-based 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

Useful information

    • Plant your Allium triquetrum bulbs from mid to late autumn;

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

    • Plant your "Three-cornered leek" bulbs two to three times as deep as the bulb is high;

    • Space the bulbs about twice the bulb diameter apart;

    • Place the Allium triquetrum bulbs with the pointed side facing upwards.

    Read all Allium planting & care instructions

  • Orders placed before 1 September 2024
    You can expect your order in September 2024

    Orders placed 1 September - 15 October 2024
    You can expect your order in October 2024

    Orders placed 16 October - 15 December 2024
    You can expect your order within 10 business days

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