More plants, fewer problems

Helen Yemm is an unmistakable and much-loved voice in the gardening world. She has educated and entertained so many readers through these pages and I am sure her many fans will join me in wishing her the best for the future. Helen will return regularly to Telegraph Gardening to write about her favourite perennials and shrubs; you can email her at gardening@telegraph.co.uk. Joanna Fortnam, Gardening Editor