(1) the first requirement, of course, is that it is rich in nutrients. After all, the plant mainly draws nutrients from the flower soil, especially when it is growing very fast and it is blooming, so this must be paid special attention to.
(2) the second requirement is loose soil. Most plants in this area have requirements.
(3) considering the habit of this plant, what it likes is slightly acidic flower soil, so we should also consider the acidity and alkalinity of flower soil. Too alkaline is not good.
(4) in addition, it is about the permeability and drainage of the flower soil. Especially drainage, because this kind of plant has fleshy roots, so it is not particularly waterlogged. If the drainage is not good, once the water is too much, it is likely to appear rotten roots.
In view of the above requirements, we can mainly choose rotten leaf soil. However, only this kind of soil is not enough. It also needs to be mixed with garden soil and sand soil. The approximate ratio is four to four to two. Of course, in order to provide enough nutrients for the plants, and also to reduce the burden of artificial fertilization, we can add a little more basic fertilizer in the cultivated soil, so as to ensure the nutrition supply.
After choosing the soil, it's better not to use it immediately. Put it under strong light for a while, so as to get rid of harmful bacteria and other microorganisms.