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.
How to protect a tree dahlia over winter
Find out how to care for a tree dahlia over winter, with the help of Monty's video guide.
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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.
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This rare hybrid has been grafted to make a half standard lollipop form. In spring it bears huge lemon yellow flowers, sometimes streaked lime green, emerging just before the deep green leaves unfurl.
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