Allium triquetrum (three-cornered leek)
Botanical Information
| Family | Alliaceae |
| Genus | Allium |
| Species | triquetrum |
| Category | Bulbs |
| Origin | Native to southern Europe. |
Details
| USDA Hardiness Zone | 7 - 10 |
| USDA Hardiness Ref. | |
| Canadian Hardiness Zone | 7b - 9a (or greater) |
| Canada Hardiness Ref. | |
| RHS Hardiness Zone | H5 - H2 |
| RHS Hardiness Ref. | |
| Temperature (°C) | (-15) - 5 |
| Temperature (°F) | 5 - 40 |
| Height | 0.1 - 0.5 m |
| Spread | 0.1 - 0.5 m |
| Growth | Medium |
| Flowering Period | April, May, June |
Description and Growing Information
| Shape | Upright. |
| Landscape | Hedges. |
| Propagation | Propagate by seed under glass during cold months. As well, propagation by division in summer can work. |
| Cultivation | Prefers moist but well-drained soil under partial sunlight. |
| Notable Specimens | St Agnes Head, Cornwall, United Kingdom. |
| Habitat | Prefers hedge banks and waste places on damp soils. |
Photographs
Allium triquetrum, form. St Agnes Head, Cornwall, United Kingdom. 24/04/2019.
Allium triquetrum, flower. St Agnes Head, Cornwall, United Kingdom. 24/04/2019.