Allium azureum
syn. Allium caeruleum
Orders placed before 1 September 2024
You can expect your order in August/September
Orders placed 1 September - 15 October 2024
You can expect your order in September/October
Orders placed 16 October - 15 December 2024
You can expect your order within 10 business days
UK orders over £50
Free shipping
UK orders under £50
£4.99
Northern Ireland orders under £50
£5.99
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Google 4.8 (8,133 reviews)
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Description
As flower colours go, true blue can be hard to find, and with summer on its way, you’re in the mood for some icy-cool colours. Gardeners with foresight will have planted the bluest of the blue-flowering bulbs in time to get a flush of azure, and they’ll have chosen the blue Allium azureum (also known as Allium caeruleum) for a showy display of blue pompom-pop like clusters of florets.
The stems of Allium azureum are quite tall, so you can use these blue alliums as a striking background for your summer perennials, or you can plant them on their own to create a splash of bluer-than-blue colour. With those looks, you may be pardoned for wondering whether these plants will need a little extra pampering, but these blue alliums are not delicate, hothouse beauties. Simply plant them, add water, and enjoy!
The Latin epithet azureum means ‘bright blue’, a reference to this variety’s flower colour.
Key features
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Comes back every year
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Attractive to wildlife
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Loved by pollinators
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Thrives well in full sun
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Packed in paper bags
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Low maintenance
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Fully hardy
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Rodent resistant
Specs & details
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Botanical name
Allium caeruleum
syn. Allium azureum -
Flower colour
Blue
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Bulb size
5/+
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Established height
50-70cm
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Established spread
5-10cm
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Plant spacing
100 bulbs per m2
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Leaf colour
Green
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Habit
Upright
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Life cycle
Perennial
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Hardiness
Fully hardy
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Years to establish
1st year
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Sunlight
Full sun
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Position
Sheltered
Exposed -
Suitable for
Borders
Meadows
Gravel gardens
Wildlife gardens
Cottage gardens
Low maintenance gardens -
Soil acidity
Any
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Soil moisture
Free draining
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Soil type
Loam
Sandy
Clay
Stony
Multipurpose compost -
Growing skill
Easy to grow
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Scented
No
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Pollinator-friendly
Yes
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Mouse resistant
Yes
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Rabbit resistant
Yes
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Deer resistant
Yes
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Toxicity
Skin/eyes irritant
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Spread
5-10cm
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Squirrel resistant
Yes
Plant calendar
| Jan | Feb | Mar | Apr | May | June | July | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
- Planting
- Flowering
Useful information
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Plant your Allium azureum bulbs from mid to late autumn;
Plant in borders or containers in sun or partial shade;
Plant your syn. Allium caeruleum bulbs two to three times as deep as the bulb is high;
Space the bulbs about twice the bulb diameter apart;
Place the Allium azureum bulbs with the pointed side facing upwards.
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Orders placed before 1 September 2024
You can expect your order in September 2024Orders placed 1 September - 15 October 2024
You can expect your order in October 2024Orders placed 16 October - 15 December 2024
You can expect your order within 10 business days
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