How do I protect plants from frost?Frost causes the water in plant cells to freeze which will damage the cell wall. Prevention is better than cure, so it is important to do everything you can to protect your plants during the winter.
For plants growing up a wall or tender plants growing in the open ground, simply cover with a fleece-covered frame. Evergreen plants need a thick layer of mulch while tender plants should be grown in pots so they can be moved inside. You can protect low-growing plants by covering them with a sheet of glass or cloche.