What type of soil is suitable for cactus?

C act i are succ ul ents that require well - dr aining soil to th rive . They are not suitable for soil that ret ains moisture , as this can lead to root rot . A good soil mix for c act i should be composed of organic and in organ ic materials , such as pe at m oss , per l ite , and vol can ic rock . It should also be slightly acid ic , with a p H between 6 . 0 and 6 . 5 . It ' s important to ensure that the soil is free of harmful chemicals and p estic ides , as these can be harmful to c act i . </s>