What is the best mix of soil for raised beds? For most situations, we recommend these proportions: 60% topsoil. 30% compost. 10% Potting soil (a soilless growing mix that contains peat moss, perlite and/or vermiculite)
Can you buy Mel’s Mix? Mel’s Mix 33002 Potting Soil Mix for Square Foot Garden, 2 Cubic Feet, Bag of 1.
What is a good ratio for garden soil? Mix four parts soil with one part compost. You may also top dress perennial flower gardens with no greater than 1/4 to 1/2 inch of compost. A soil mix for this use should be around 10 percent. To obtain a 10 percent mixture, you should mix 9 parts soil to 1 part compost.
How many cubic feet of soil do I need for a 4×8 raised bed? Doing so maintains soil health and depth. How much soil? For a 4×8–foot raised bed with a 10” height, about 1 cubic yard of soil is needed. For a 4×8-foot raised bed with a 6” height, using Mel’s Mix: about 5 cubic feet each of compost, peat moss, and vermiculite is needed.