Sarah Raven on Instagram: "Every seasoned gardener understands the brilliance of perennials - the plants that do it all. These are the plants that return year after year and are guaranteed to fill garden borders and pots with colour and texture throughout the growing season. Here Sarah picks 5 perennials that are the longest performing - all tried and tested in her garden at Perch Hill. Visit the link in bio to shop our full range of perennials. 🎥 rachaelcooney . . . #sarahraven #perenni