Allium caeruleum

blue allium bulbs (syn. Allium azureum)

4 5 1 star 1 star 1 star 1 star 1 star (7 reviews) Write review
20% OFF plants, bulbs & seeds
40 + 20 FREE bulbs £11.98 £9.58
in stock (shipped within 1-2 working days)
20 bulbs £5.99 £4.79
in stock (shipped within 1-2 working days)
Quantity 1 Plus Minus
Buy Allium caeruleum blue allium bulbs (syn. Allium azureum): Beautiful globes of bright blue flowers

  • Position: full sun
  • Soil: fertile, well-drained soil
  • Rate of growth: average
  • Flowering period: June to July
  • Hardiness: fully hardy
  • Allium bulb size: 4/-

    This stunning blue ornamental onion is ideal for a sunny border. Dense globes of small, star-shaped, bright blue summer flowers on stiff stems and narrow, mid-green leaves. Since the leaves die back before the flowers emerge it’s best planted with other medium-sized herbaceous plants, such as sea holly, which help to mask the faded foliage.

  • Garden care: Plant 8cm (3in) deep in naturalistic drifts in September or October in a well-drained, sunny site. Split and divide large clumps in autumn or spring.

  • CAUTION do not eat ornamental bulbs

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Delivery information

Eventual height & spread

Eventual height and spread
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These will ONLY grow and flower if planted in sunny and well drained soil. At least that is what happened to me when I trialled them in three different positions. Clay soil and sun in South facing border = NO SHOW. Well drained soil and partial shade in West facing border = NO FLOWER. Those that did flower were lovely. A vivid blue!




I would not buy this product again


Had great expectations of this plant. Only a couple of bulbs grew and were nothing like the picture. This year didn't grow at all




Unlucky ?


Unfortunately none of them grew, or at least they didn't flower if they did grow. Not sure if I'm unlucky or if they're prone to pests eating them.




Blue allium


Spring 21 was the first time they flowered and they were really large and beautiful.


Greater London


Beautiful colour


Loved it's form and colour.




Allium caeruleum


Lovely colour and good show.




Not flowered yet but looking strong and healthy


All the bulbs I ordered were healthy and delivered as specified. Can't wait for them to flower soon !





4.0 7




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