Perennials
Winter
Tidy the garden and clear away plant debris. Make sure that non-hardy perennials are protected from the frost.
If weather conditions permit, plant hardy perennials in late winter. Seeds of slow germinating plants may be grown in a heated greenhouse or conservatory. Soft perennials that come into leaf early, such as blue cowslip (Pulmonaria) and leopard's bane (Doronicum), may be lifted and divided.