The Science of Gardening: The Hows and Whys of Successful Growing

Most gardening books deal with the how of gardening—how to prune roses, take cuttings, or control diseases. This approach means you have to follow rules and instructions which are easy to forget or misunderstand. A complementary approach is to understand why plants respond to pruning, why only some plant shoots produce roots when taken as cuttings, and why crop rotation can help manage disease in the vegetable garden.