Allium caeruleum – (Blue Globe Onion)


An allium with wonderful sky blue  densely packed flower balls, held high on tall stems.

Out of stock


Allium Caeruleum  is a bright sky blue flowering  allium, and is prized for its true blue flowers. It grows 30-60cm tall. It has been awarded the prestigious Award of garden merit of the Royal Horticultural Society. It is best grown in well drained rich sandy or gritty soil and kept on the dry to medium moisture scale. Allium Caeruleum  tolerates dry conditions well. It is  attractive to butterflies, and is best planted in groups to appreciate the beautiful colour of the flowers. Deer and rodents do not appear to touch this allium overseas, but we do not have any information regarding possums and other animals here.

Note : Packet contains 11 seeds

Seed Raising Advice

Sow seeds at any time, covering them with compost or grit 5mm deep.Keep the seed pot in a cool, well-lit spot outside. Artificial heat is not needed and will prevent germination so be very patient as many species will only germinate in the spring after chilling or freezing of the moist seed tray in winter. Grow on individual seedlings in small pots until they are of  sufficient size to be potted on or planted out into the open ground.



Additional information


Hardy Perennial

Common Name

Blue Flowered Garlic, Blue Globe Onion, Blue of the Heavens



Maximum Height

60 cm

Number of seeds in packet