Don’t prune now
Plums, damsons and cherries In winter the cut surfaces will be left vulnerable to infection by air-borne spores of silver leaf disease. Prune in July-August when the cuts can heal over quickly.
Lavender Cutting back now can result in cold and frost penetrating the bushes and killing them. The top growth acts as insulation.
Forsythia Wait until the shrubs have bloomed before cutting out a third of the oldest stems.
Abutilon The plants are only borderline hardy in most of the UK so leave unpruned until April.
Silver leaf disease weakens plants and may lead to death