She advises pruning them in two stages, first shortening shoots to two or three buds along lateral stems at this time of year, and then shortening the "long whippy growth" in summer.
Plants that must be pruned this month - or they might 'bleed badly' January is usually thought of as the time for pruning as many plants are dormant, making it easier to do.
This month, there are three main plants that need pruning, according to gardening experts Sarah Raven and Michael Parry, also known as Mr Plant Geek.
Pruning in the winter is about cutting back and reshaping certain plants to promote strong, healthy growth and lots of fruit and flowers.
It flowers on the shorter side shoots, so the main job in winter is to remove any "long, whippy growth" left over from the summer.
