If your window box is in full sun, summer bedding plants will be quite happy. For shady boxes, go for Begonia ‘Hazel’s Front Porch’ or busy lizzies.
Hanging baskets are a staple of summer gardens and provide a heady greeting for visitors. My container growing ideas for these are focussed on scent. Choose fragrant flowers to really make the most of the fact that they’re at nose-height.
Striking ‘Sunpurple’ petunias, ‘Moonlight’ violas or decorative pelargoniums will work well or mix it up and grow strawberries in baskets which are ready to harvest by late summer. Whichever you choose, make your selection based on colour.