“Finally, a guide to navigating the staggering possibilities among perennials.” —Margaret Roach, awaytogarden.com   Perennials are the mainstay of any garden. But how do you choose from the thousands available, and care for the ones you already have? Essential Perennials helps you decide exactly which plants will bring you the beauty you want and will thrive in the conditions you can provide.             Trusted garden experts Ruth Rogers Clausen and Thomas Christopher focus on what every gardener needs to know. For each plant you’ll findflower colorseason of bloomfoliage characteristicsheight and widthlight requirementshardiness and heat sensitivityYou’ll also learn cultural tips, the most outstanding cultivars for each species, and whether a plant has any special requirements or potential problems. Essential Perennials delivers all the information you need.