These plants make fine indoor plants but can only thrive outside in United States Department of Agriculture zones 10 and 11. Since they are small, try growing a brain cactus in a succulent dish with a mixture of forms and textures. You may expect blooms any time over the course of the summer which will brighten the container and add even more appeal.
You may think you know all about succulent care but you don’t know how to grow a brain cactus.
Most cactus are sensitive to overwatering and poor drainage, but brain cactus pads will actually trap moisture in the folds and crevasses.
This can be bad in cultivation where gnats are attracted, and mold and mildew issues can instill rot and kill the plant. It is best to water from the base of the container to prevent any moisture from collecting on the body of brain cactus.
If you wish to propagate the plant, there are some easy methods. Use woody stem cuttings and allow the cut end to callus over for a week.
Then insert the cut end into soilless potting medium, such as lightly moistened sand.
As a succulent from arid regions, brain cactus are most sensitive to moisture. They need to be kept in a dry place with little humidity. Excess humidity can do as much damage to the plant as too much water.
Consider that the region from which they hail is dry most of the year and then characterized by a short drenching rainy season.
The plants then do most of their growth and flower after the rain followed by a fairly slow growth rate, almost in hibernation, until the next rainy season.
Place the container in a partially sunny location where the brightest noon day rays can’t burn the plant. Allow the surface of the soil to dry to the touch before watering.
In winter, water half the amount. In spring, feed with a dilution of cactus food.