three-cornered garlic · Pruning

three-cornered garlic · Allium triquetrum
Also known as: three-cornered leek; triquetrous leek

This plant is listed on Schedule 9 of the UK Wildlife & Countryside Act as an invasive non-native species. Although not banned from sale, it is an offence to plant or cause these to grow in the wild IN ENGLAND WALES, NORTHERN IRELAND and the REPUBLIC OF IRELAND. Gardeners possessing them should undertake measures to control them. See RHS advice on invasive non-native species for further information

Watering: Moist soil during active growth, then reduce watering after foliage yellowsSunlight: Full sun · Partial shadeInformation to be completed