Allium triquetrum (three-cornered leek)


Botanical Information

FamilyAlliaceae
GenusAllium
Speciestriquetrum
CategoryBulbs
OriginNative to southern Europe.

Details

USDA Hardiness Zone7 - 10
USDA Hardiness Ref.
Canadian Hardiness Zone7b - 9a (or greater)
Canada Hardiness Ref.
RHS Hardiness ZoneH5 - H2
RHS Hardiness Ref.
Temperature (°C)(-15) - 5
Temperature (°F)5 - 40
Height0.1 - 0.5 m
Spread0.1 - 0.5 m
GrowthMedium
Flowering PeriodApril, May, June

Description and Growing Information

ShapeUpright.
LandscapeHedges.
PropagationPropagate by seed under glass during cold months. As well, propagation by division in summer can work.
CultivationPrefers moist but well-drained soil under partial sunlight.
Notable SpecimensSt Agnes Head, Cornwall, United Kingdom.
HabitatPrefers hedge banks and waste places on damp soils.

Photographs