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Allium triquetrum is native from Europe and Great Britain. Has become a rampant weed in the USA. Due to rapid propagation, should be grown only where spreading can be restricted (Black oblong seed fall mainly close to the parent plant, but can be carried further afield by nearby waterways or by ants; so look at Risk Assessment Information). Excellent as ground cover in poor well-drained soil in sun or shade where it will keep weeds under check, but keep it away from mixed borders.

The flowers, leaves and root are edible. Eat Weeds video. Can be used along the bottom of hedgebanks.

Plant at 3 inch depth and 8 inches apart with an inch of fine grit under them for drainage. Never plant at perfectly measured distances apart as this looks artificial - plant in clumps of 5, 7 or 9 in a staggered group so that they look more natural when they flower. Split and divide large clumps in autumn or spring.

Available from Gee Tee Bulb , Cotswold Garden Flowers , R. V. Roger and B & T World Seeds in the USA