If there are bare patches in the vegetable garden, sow green manures to keep the soil covered.
Watch out for blight on potatoes and tomatoes – if it strikes, cut the tops off the plants and burn them. Leave potatoes undisturbed for 3 weeks and then harvest them to avoid blight infecting the tubers.
Keep cutting annual flowers like sweet peas and cornflowers – once they have set seed they consider their job done.