When you hang the name of a Royal Horticultural Society garden on a new introduction, it had better be good. Clematis Rosemoor™ is better than good. It comes from Raymond Evison’s superb breeding program on the Isle of Guernsey. Its 5in dark, wine-red blooms appear on old and new wood, which means flowering is almost non-stop from early summer to fall. PP 15,797

For beautiful colors, extravagance of blooms, and graceful habit, nothing compares with Clematis, the queen of flowering vines. These plants enrich a landscape whether twining on posts and fences, clambering through shrubs and trees, or following a wire frame in a border. Give them good soil, reasonable moisture, and shade at their roots.