Stanner Rocks is a rounded hill, steep in parts, which lies close to the Wales border with England between Walton and Kington. In addition to having some of the oldest rocks in Wales, a superb collection of wild plants can be found here. Where it faces south, warm sunshine and drying winds create an ideal environment for plants which you would be more likely to see around the Mediterranean. The most famous of Stanner Rocks’ specialties is the pretty and elusive Radnor Lily, having small, starry yellow flowers.