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Summer bedding will start to fade now, as the nights get cooler and wind and rain takes it's toll. Pansies, Polyanthus, Prmiroses, mini Cyclamen and other hardier plants are the way to go, they'll stay colourful well into the winter.
You can use little conifers, Ivies, and other evergreens like Hebes in baskets and tubs to keep them looking fresh and interesting. They won't grow that much during the winter so don't concerned about the size on the label - you can pop them in the garden when it's time for summer bedding again.