Perennials are the stalwarts of our garden borders – they provide colourful flowers in the garden, year after year. Mostly flowering in spring, summer or autumn, with a handful blooming in winter, they're mainly herbaceous, dying back in autumn and regrowing in spring, offering fantastic value for money.
To show this BBC Gardeners World Magazine content, we need your permission to allow Google reCAPTCHA and its required purposes to load content on this page.