If you want to make your own fertile soil, you need to prepare some soil first. If not, you can go out and dig some in the field. But be careful not to dig the soil in the flower bed. After digging the soil back, we need to find a place with good lighting. Lay a layer of newspaper on it, and then spread the soil on the paper to let it be exposed to the sun for sterilization.
Prepare some kitchen waste or rotten fruit, mash them, chop them, and mix them with the prepared soil. If you don't have these things at home, you can go out and dig some pine needles in the field and mix them with the soil. After that, put the mixed soil into a closed container, place it in a warm place, and wait for the soil to retouch.
Generally, after 1-2 months, soil retting is completed. The soil can be used to grow flowers. Take them out of the container, put them into the flowerpot, and then plant flowers in the flowerpot. These soils can also be used for basin changes. First take out the plants in the old basin, remove the old soil, then fill these new soil into the flowerpot, and plant the plants back.