| Scientific Name: | Allium ampeloprasum (Porrum Group) |
| Common Name: | leek |
| Family Name: | Amaryllidaceae |
| Origin: | Africa, Central / west Asia, Europe |
| Hardiness Zone: | Zone 6: (-23 to -18 °C) |
| Plant Type: | Annual (grown as), Biennial |
| Mature Size: | 0.4 - 0.7m x 0.1 - 0.3m (height x width) |
| Habit: | Arching, Upright |
| Form: | Vase |
| Texture: | Medium |
| Landscape Uses: | Urban agriculture |
| Exposure: | Full sun |
| Soil or Media: | Humus rich, Well-drained |
| Leaves: | Simple, Alternate, Leathery, Parallel venation, Glabrous, Glaucous, Linear, Entire |
| Flowers: | Umbel, White, Violet, Purple, Pink, Red, Jun-Jul |
| Fruit: | Capsule, Brown, Aug-Sep |
| Key ID Features: | |
| Onion-like biennials but varieties grown for stems may lack distinct bulbs; leaves alternate, base sheathing, linear, 30-60cm long x 2-3cm wide near centre, gradually narrowing down to a fine tip; umbels on peduncles 30-1.2m tall, florets tightly clustered, urn-shaped, June-July of second year. | |