Winter Gardening: Hardy Vegetables, Greenhouses and Season-Extending Tricks for Harvesting Through Frost and Snow

Kale with a faint glitter of ice on it, leeks that come up clean and white in January, a box of carrots bedded in damp sand in the shed. Harvesting through frost and snow is neither heroic nor hopeless. It comes down to three things: choosing crops that are genuinely hardy, sowing them at the right moment for your climate, and giving the softer ones a little shelter.

This book takes each of those in turn. It begins with how frost forms, how plants cope with cold and why short winter days,...