Perennial plants for rockery garden
Browse our range of the best perennial plants for the rock garden, perfect for bringing fabulous foliage colours and beautiful blooms into your rockery space. Rockeries are constructed as natural-looking rocky outcrops, ideally on a slope in full sun. They work particularly well alongside ponds, water features or next to walls and can be given extra height and contours using railway sleepers if your garden is naturally flat. Perennials are plants that generally survive frost and live in the ground for more than 2 years, as opposed to annuals and biennials which last for one and two years respectively. They are distinct from shrubs and trees because they have little or no woody growth. Herbaceous perennials are those perennials which, depending on the local climate, may bloom over the spring and summer, die back in the autumn and winter then re-grow from their root-stock in the spring. They are great for adding colour and texture each summer. Some of the best perennials for the rock garden are certain varieties of achillea, agapanthus, bellflower, geraniums, kniphofia, sedum and veronica. The seasonality of most perennials means they are best combined with evergreen shrubs so as to avoid empty spaces being left over the winter.