With stems that twist around each other in a roundish shape, the Mammillaria Elongata ‘Cristata’ cactus looks like a human brain and a clump of worms. Aptly called the “brain cactus,” the succulent is native to central Mexico, according to Succulent City.
Moreover, how do you look after a brain cactus?
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.
Likewise, people ask, are brain cactus poisonous?
This is one of the Euphorbias, which are quite poisonous. If you have small creatures wandering around, please be careful with allowing them contact with it, and if you’re pruning it, be aware that the sap is caustic and can cause burns and contact dermatitis.
How do you save a rotting brain cactus?
You can try to repot the plant, removing diseased soil and replacing it with sterile soil. You should wash the roots off well before replanting in a fresh potting medium. A soft, mushy cactus can also be saved by taking cuttings and letting them root for a fresh new plant.
Gently pick up the cactus and shake as much of the old soil out of the roots as you can. Plant it in the new pot and add more soil around it so that the soil reaches the top of the pot. Hold off on watering it for a few days to give it a chance to acclimate to its new pot.
Few of the main reasons why your cactus is shrinking are under watering, aging, rotting, too much light, overwatering during winter. You will need to look for multiple signs to determine the cause of shirking. Shrinking of a cactus is not normal, and should not happen in a healthy cactus.
You may use a cactus soil mix, or a mixture of sand, potting mix, pumice or perlite. Add in a bit of organic matter to ensure the plant gets sufficient minerals. Transplanting should be done after two to three years.
Instead of yellow, a cactus can also turn brown. The most common reason for this is age and is called corking. … When a cactus has been constantly wet, rot can settle in from the roots and spread upward to the plant. Diseases such as fungal disease or from pest infestation can also turn a cactus brown.