Raised-bed gardening is a form of gardening in which the soil is enclosed in three-to-four-foot-wide (1.0-1.2 m) containment units ("beds"), which are usually made of wood, rock, or concrete and which can be of any length or shape.This book covers: -Soil Gardening-Hydroponics-Container Gardening-Organic Gardening Basics-Fertilizer and Pests-Plant Pest and Disease Diagnostic Steps-Tips and Tricks-Vegetable Management-Selecting Seeds-Common Mistakes and How to Avoid Them