Monty Don shows you how to cut a tender tree dahlia (Dahlia imperialis) down to size in autumn, so it can be dug up and brought indoors over winter. Watch this short video from Gardeners’ World for full details.
£7.99 £17.98for 36 plus plants, plus free fertiliser
Enjoy a spectacular display this summer with geranium 'Best Red'. This exceptional variety bears large, scarlet blooms from June to October. These vigorous half-hardy perennials are perfect for beds, borders and pots.