As I live in a frost pocket, the pelargoniums (bedding geraniums) are going to come under cover soon.
If you have pots of pelargoniums which you want to enjoy next year, put them inside, in a light, frost-free place such as a slightly heated greenhouse, a sheltered porch or an unheated spare room or conservatory, cutting them back to 10cm (4in).
Don't expose them to central heating or they'll just wilt when you put them out next year.
Fuchsias, which lose their leaves entirely and spend winter looking like bare sticks, will need the same treatment.
You'll hardly need to water them at all until growth resumes in spring, at which point you can repot them into John Innes No 2 potting compost and harden them off before placing them outside.
Marguerites (Argyranthemums) will also not stand frost and are best dug up and potted, cut back by half and kept in a dry, cool, frost-free place with sunlight over winter, like a cool greenhouse. Water sparingly to keep the roots dry until spring.
If your garden has a Mediterranean theme, you're likely to need to protect other vulnerable plants, such as cannas, olive trees, ginger lilies and dahlias, which may not survive winter frosts.
BEST OF THE BUNCH: Katsura tree (Cercidiphyllum japonicum)
If you want autumn wow factor in your garden, look no further than the Katsura tree, or candyfloss tree, which showers you in a sea of yellow, pink, orange and red leaves. The leaves have a caramel scent when they fall. It's a big tree, though which can reach up to 18m (60ft), so may suit larger gardens.
GOOD ENOUGH TO EAT: Autumn cauliflower
You should now be picking autumn cauliflowers which have formed a good-sized head. These make delicious cauliflower cheese or you can add them to pickles for Christmas. Autumn varieties should be sown outdoors between mid-April and mid-May and transplanted in late June. Good varieties include 'Autumn Giant' and 'Barrier Reef'.
n That's our last gardening column for the winter - see you next spring!