Bold and architectural, agapanthus are strikingly beautiful plants that have become very popular in recent years. Originating in South Africa, and often called African lilies, their strappy leaves and statuesque stems, topped with balls of intensely coloured flowers, fit easily into a modern garden setting or a traditional mixed border. They also make fantastic specimen plants for pots, yet their glamorous looks are surprisingly low maintenance and there are many that will survive the winter outdoors.