Simplify your future spring tasks by preparing the soil for seedlings this fall. This approach will not only save you time but also enable you to start growing the necessary plants without any hassle, as noted by ProstoWay.
For every two parts of compost, use one part each of peat and sand. This results in a ratio of 2:1:1. The substrate will be sufficiently loose and nutrient-rich. The Trichoderma granules will help prevent the spread of harmful bacteria.
After thoroughly mixing, store the substrate in bags and place them in the basement until spring. Then, you will have ready soil for successfully growing seedlings.