What soil is best for growing cactus?

1. Requirements for soil

Although cactus does not have particularly high requirements for soil, it will grow better in suitable soil. Specifically, the requirements are mainly drainage and air permeability, and it is best to contain lime.

2. Available Materials

(1) Coarse sand: Adding sand will make the overall air permeability better. Moreover, it also contains many trace elements, such as magnesium and iron.

(2) Akadama: It can be used as the main preparation material and is an indispensable component. It was formed by the accumulation of volcanic ash. It is rich in phosphorus and potassium, and its air permeability is also very good.

(3) Wood ash: It is also rich in phosphorus and potassium and has good air permeability. Moreover, it also has the effect of inhibiting bacteria.

(4) Coal ash: It has water storage properties and good air permeability. It contains a lot of potassium and also some trace elements. It is alkaline.

(5) Volcanic rock: It has excellent water storage and air permeability, and can also kill bacteria. In addition, it can be used repeatedly.

(6) Vermiculite: It has excellent air permeability and is sterile. It is recommended to use it when sowing and cutting.

(7) Coconut bran: slightly acidic. Can be used when sowing.

3. Specific preparation method

According to the above materials, they can be used in combination. There are many specific methods. For example, you can use Akadama, coarse sand, and coconut bran in a ratio of six to four to four. The effects are good.