I picked this book up at the library to help me with my lemon and lime trees and I haven't really put it down for 3 weeks. It really is the authority on everything outside- trees, shrubs, flowers, vegetables, you name it. It it grows, this book will tell you when where and how to plant it and keep it growing. I went to the used bookstore on Saturday to see if I could find a copy (or a good substitute) but they didn't have it in and nothing else in the garden section of the store even came close. I think every gardener needs this on their shelf.