Indispensible More than ten years in the making, Perennials is the most comprehensive guide available to these popular plants. It includes descriptions of over 2,500 types of perennials, each variety described in detail and illustrated with a handsome color photograph. After three decades of collaboration, Roger Phillips and Martyn Rix continue to expand their plant collections and hone their knowledge. Perennials includes expert information on: Cultivation and propagation Plant origins Natural planting associations Flowering times for every phase of the growing season Combinations for borders, island beds, meadow gardens Sedges, grasses, hostas and ferns Sources, gardens to visit around the world, and further readings. With a wide variety of old favorites and an exciting selection of rarities, Perennials is widely recognized as the indispensable and inspiring reference for color and variety for all sites and soil conditions.