Leek
Protection in Leek: Thrips Control & Healthy Roots About The vegetable leek is a cultivar of Allium ampeloprasum , the broadleaf wild leek. In the past, [...] blanched by putting soil around it (so-called ‘trenching’). The plant is usually sold as a small seedling and planted in a greenhouse. Later on, as weather [...] permits, the leek is planted outside in the soil. Once outside, the plant is rather hardy and many varieties can be left in the soil during winter and harvested