Scrub that greenhouse or conservatory!
Clean the glasshouse if not already done, to prevent pests and diseases from overwintering in nooks and crannies.
Prepare alpines for winter
Move alpine troughs to a covered porch or lean-to to protect them from the rain. Pick over alpines regularly, removing debris and covering dead patches with extra grit to encourage re-growth.
Cut back some shrubs now
Shrubs normally pruned hard in the spring such as Buddleja davidii, Cornus alba, and Lavatera can be cut back by half now, to prevent wind rock and to neaten their appearance.
Make use of fallen leaves
Place fallen leaves on the compost heap or into separate pens for rotting down into leaf mould. Shredding leaves first with a shredder or mower will help them break down quicker.
Move trees, shrubs and climbers