Winter leeks in October: 3 mistakes when harvesting and storing
Leeks shrug off frost and can stay in the bed until spring – if you harvest them the right way. These three mistakes cost you your best stalks.
In October your winter leeks stand sturdy in the bed, and many gardeners pull them all at once for fear of frost. Most of the time that isn’t necessary. With a few small steps your leeks will keep you supplied all winter.
Mistake 1: Harvesting everything at once
Winter leek varieties are bred for the cold season and, depending on the variety, tolerate frost down to roughly minus 10 to minus 15 degrees Celsius. In the bed they often keep better than in the fridge. Harvest only what you plan to cook over the next few days.
Freshly pulled leeks taste noticeably more aromatic than stored ones.
Mistake 2: Simply yanking the leek out
Leeks have a wide, fine root system. If you pull hard, you often snap the stalk or damage its neighbours. Instead, push a digging fork in about ten centimetres away, loosen the soil and gently lift the stalk out.
When the ground is frozen, it’s better to wait. Frozen leeks break easily, and harvesting is much easier in thawed soil anyway.
Mistake 3: Forgetting the roots when heeling in
If you want a supply to hand, heel your leeks in: dig a shallow trench in a sheltered spot, stand the stalks upright with their roots in it and cover the roots with soil. This keeps them fresh for weeks and within easy reach even in hard frost.
Without soil, loose on a cellar shelf, leeks quickly go limp.
What stays in the bed needs protection
For leeks that stay until spring, lay a loose layer of leaves or straw over them during sustained frost. It protects against frost without snow cover and keeps the soil open. Remove the cover after mild days so nothing rots underneath.
If leek moths or leek miner flies left traces in autumn: don’t put infested remains on the compost, bin them with household waste, and cover next year’s crop with a crop protection net.
Good to know for planning
Leeks and carrots make good bed neighbours: the smell of leeks may confuse carrot flies, and carrots don’t bother leeks. That makes your space more efficient next year. In Rootivo, the companion-planting line layer in the bed planner shows you right away which neighbours go together.