Botanical name
Allium sphaerocephalon
Other names
Roundhead leek, Round-headed allium
Genus
Species
A. sphaerocephalon - A. sphaerocephalon is a bulbous perennial with strap-like, mid-green basal leaves and tall stems bearing small round or oval pink to purple-red flowerheads in summer
Foliage
Deciduous
Habit
Erect, Spreading
Awards
RHS AGM (Award of Garden Merit)