We have found 10 plants that meet your criteria.

ornamental onion bulbs
Allium atropurpureum ornamental onion bulbs A smashing new introduction £5.99 coming soon
nodding onion bulbs
Allium cernuum nodding onion bulbs Delightful clusters of nodding flowers £4.99 coming soon
allium star of Persia bulbs
Allium cristophii allium star of Persia bulbs... Huge globes of star-like, lilac flowers £5.99 coming soon
ornamental onion bulbs
Allium giganteum ornamental onion bulbs Large, showy lilac-pink globes £3.99 coming soon
allium bulbs
Allium moly allium bulbs Brilliant yellow flowers in May and June £3.99 coming soon
ornamental onion bulbs
Allium schubertii ornamental onion bulbs Explosions of summer colour £7.99 coming soon
round-headed leek bulbs
Allium sphaerocephalon round-headed leek bulbs Small, wine-coloured flowers on tall stems £2.99 coming soon
American onion bulbs
Allium unifolium American onion bulbs A longer flowering period that most Alliums £4.99 coming soon
ornamental onion bulbs
Allium neapolitanum Cowanii Group ornamental onion bulbs These make excellent cut flowers £5.99 coming soon
ornamental onion bulbs
Allium 'Silver Spring' ornamental onion bulbs They are great for adding structural interest to the border £6.49 coming soon