Cabbage patch

For something a bit different, you can try planting ornamental cabbages in your window box, along with some white or pale pink pansies for a cool, smart look for autumn.

Plant your window box in late summer using a compost that retains moisture. Keep watering and remove the flowers of the pansies as they fade to encourage more growth. Replacing the cabbages and pansies will extend your window box display through the autumn to the spring.