The Best What Soil Do I Put In Raised Garden Bed References. Although a distance of four feet (1.2 m) between garden beds is ideal, the actual distance will vary depending on your garden bed. What is the best formula for soil used in a raised garden bed?

Each soil has its own set of characteristics that make it suitable for different types of plants and activities. The best soil combination for raised garden beds should have two parts: Technically it is a mixture of sandy, clay and silty soils.