A handy tip to gain a better leek harvest this winter. This tip is in addition to planting the leeks deeply at the start of the season by using a dipper.
The tubes are made from organic material of wood pulp, recycled paper and textile fibres. I find that cardboard falls apart after a few showers of rain and the slugs/snails start to eat them. I tried loo rolls once and won’t go back to them. I’ve heard some gardeners have experienced fungus coming out of the loo rolls.