Spring is the best time of year to take cuttings from perennials such as Phlox, Sedum, Cat Mint and Aster which will flower later in the summer and early autumn. Giving these plants the ‘Chelsea Chop’ trim in May provides you with plenty of softwood material for cuttings so that you can use to replace old plants easily or simply add another of your favourites to the garden. Our guide to softwood cuttings takes you through the process, step-by-step.