Protect containers from frost
Large tubs that are at risk of cracking in the frost should be covered with bubble wrap, hessian or fleece, to insulate them over the winter, especially if they contain borderline hardy plants.
It is an ideal time to plant roses. Avoid planting in areas where roses were previously growing otherwise new introductions may suffer from replant diseases (rose sickness).
Shrubs normally pruned hard in spring – such as Buddleja davidii, Cornus alba, and Lavatera – can be cut back by half now, to prevent wind rock.
Herbaceous perennial care
Lift and divide overgrown clumps of herbaceous perennials, or leave them until spring (I’d do this). Cover borderline hardy plants with fleece sacks to protect them from the worst of any winter weather, especially if still young.
Keep your garden filth free
Garden hygiene is vital to help control and prevent disease. Rake up and NEVER compost infected leaves, such as black spot on roses, or scab on apples and pears.