Leeks sown in spring in pots or a seedbed should be ready to transplant into their fnal growing site. Plan where to put them carefully as they will take up that ground right through to winter. Choose a spot that hasn’t had leeks, onions or garlic in it for a year or two to avoid soil-borne diseases that affect the onion family.
Once the young leek plants are growing strongly, mulch the soil with garden compost to help hold in moisture. Expect to harvest your crop from autumn through to early spring.