Your plants will thrive in this mixture that resembles potting soil, containing no garden-variety “dirt” at all: 1/3 vermiculite, 1/3 peat moss, and 1/3 varied composts. For larger planters, you can adjust this to one quarter each vermiculite and peat, with the remaining half comprised of compost. Mix in other materials, like peat, pumice or vermiculite if you’re looking for good drainage, or sand, which root vegetables like. The easiest way to make sure compost is garden-ready is to spread it in the fall, leaving it on the surface to finish through the freeze and thaw cycles of winter. A big challenge in raised bed gardening is creating the ideal soil. Learn my perfect recipe for the best soil – rich & moist with great drainage too. SOIL. IS. PERFECT. If you’re new to the gardening world, or maybe if you just. I want to use homemade compost instead of the specific branded potting mix. Both the 50-50 mix and the three-part mix provide basic building blocks for good garden soil. So as I stated above, I have always used this recipe for garden soil in my gardens. It is hands down one of the best gardening books that I have ever bought! You can build the best soil for growing vegetables in a raised bed by mixing specific soil types. While pre-mixed soils are available for purchase, it’s far. Making your own homemade garden soil mix is easy, cheap and can help you. A good blend for succulents includes 1 part coarse sand, 1 part perlite, 1 part.