It is recommended to cover the plants in the bed in such a way that the vegetables can always be harvested fresh, even when the first snow has fallen. For this, a layer of fleece can be spread over the plants, which can quickly be opened up when the vegetables are to be harvested. Special thermal insulation fleeces are ideal for this. They are breathable, let light and water through but at the same time insulate well and protect against excessive evaporation. Unlike reed mats, they do not disturb the natural micro-climate.
Vegetables which grow taller can be protected by driving posts into the soil and thus forming a sort of roof which is then covered with fleece. The vegetables are thus not only protected against frost but also against rain, hail and gales. In addition, the gardener always has free access for harvesting. In order not to have to fear freezing of plants even in extreme cold, the sides can also be sealed with a tarpaulin or fleece.