Claire Margetts is a senior gardener and the National Trust’s first-ever Sissinghurst Scholar, part of an 18-month programme designed to cultivate future head gardeners under Troy Scott Smith. “Vita wrote that ‘climbers are among the most useful plants in any garden’, says Claire. “I couldn’t agree more and could happily extol the virtues of any of the hundreds of clematis and climbing rose forms that adorn the medieval walls, farm buildings, homespun chestnut structures and which grow in the orchard here.” This month, Claire picks ten best climbers that will grow in shade or partial shade, are happy in most soils and are generally hardy.