Snakebark maples, winter-flowering camellias and a sacred Central American shrub that makes itself at home on our windowsills... there are many amazing plants that give us colour and interest in even the darkest months. We visit the Sir Harold Hillier Gardens* to discover an incredible range of hardy plants that look great all winter. Garden designer Juliet Sargeant gives her seasonal tips for adding interest to your garden at home and we uncover the surprising story of a perennial Christmas favourite, the poinsettia. Plus plantsman and nursery owner Claire Austin's ode to an unusual evergreen iris that flowers from December to March.

*Please note that this RHS Partner Garden is open free to RHS members in January and February. See link in the show notes for more detail.