Permapotes

Perpetual leek

Perpetual leek: Sowing, planting and harvest calendar

Perennial leek is a long-lived vegetable in the genus Allium, associated with Allium ampeloprasum in the Amaryllidaceae family. It gradually forms a clump of slender shoots with small bulbs at their bases. Its appeal lies in this lasting presence and repeated renewal, rather than in producing a thick white shank like the large leeks commonly grown as an annual vegetable crop. The clump and its underground parts belong to the same continuing plant.

The elongated leaves resemble those of a leek, with a finer outline and a clustered arrangement. Their overlapping bases form a pale lower portion that is shorter than the shank of large culinary leek cultivars. Shoot numbers and the appearance of the clump change as the plant develops and gains vigour. Small basal bulbs contribute to its persistence and expansion. They are different from the single large bulb that is the main attraction of elephant garlic.

Perennial leek and elephant garlic are related, but their cultivated forms and uses are not interchangeable. Here, the characteristic feature is a clumping leek with leaves and slender shoots useful in the kitchen. The word perennial means that the plant can live for several years. It does not promise abundant green foliage without interruption during every month of the year. Its growth has a seasonal rhythm rather than an unchanging appearance.

Active growth often extends from autumn into spring, with a possible period of summer dormancy. Leaves may then yellow, diminish or disappear while the underground organs remain. This alternation forms part of the perennial life cycle and does not necessarily indicate that the plant has died. Climate and growing conditions also influence its rhythm, so the same seasonal pattern does not occur on identical dates in every region.

In the kitchen, its leaves and shoots add a leek-like flavour to soups, sauces, omelettes and vegetable mixtures. You can enjoy it as a small aromatic addition, with quantities and texture different from those of a whole large leek. In the vegetable garden, the clump brings a vertical outline among perennial vegetables. It also makes the renewal of shoots and the persistence of one plant through successive seasons easy to observe.

Perpetual leek
Perpetual leek
Characteristics
  • Lifecycle : Perennial
  • Exposure : Full Sun
  • Frost Hardiness : Frost Resistant
  • Cultivation Difficulty : Easy
  • Mature height : 60 cm
Sowing & Planting
  • Greenhouse Growing : Not Required
  • Sowing Depth : 1 cm
  • Plant Spacing : 15 cm
  • Row Spacing : 30 cm
Maintenance
  • Maintenance : Low
  • Water Requirements : Moderate
Other characteristics
  • Soil Type : Humus-rich
  • Soil pH Preference : Neutral
  • Pest Sensitivity : Moderate
  • Disease Sensitivity : Moderate
  • Weed Sensitivity : Moderate
  • Pollination : Self-pollinating
  • Propagation : Division