If you want cactus to be a little thicker, you need to ensure the drainage and water conservation of the basin soil, which is conducive to the growth of roots. Basin soil can't use river sand completely. Generally, garden soil and compost should be mixed. Among them, the proportion of river sand and garden soil is equal, and the compost can be less. This can avoid water, but also won't let water loss too fast.
Cactus is very drought resistant because it can store a lot of water. If the environment is wet, it will not deliberately store water, so the leaves will become thinner. If there is less water, it will store more water. So don't water it too often, just pour it through every time.
Cactus can't grow without enough light. You can put it in the sun for the whole day. And it is not afraid of the sun, the stronger the light, the more vigorous it grows. Long term shade can cause the leaves to shrivel or even die.
Although cactus grows in the barren desert, it also needs nutrients. When fertilizing it, we should choose phosphorus and potassium fertilizer. We can use bone meal and rotten animal manure. Also can use compound fertilizer to irrigate, for it comprehensive supplement nutrition.
