How do you fix rotting 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.
How do you treat black spots on cactus?
Use a sharp knife to cut out black spots under 2 inches in diameter on saguaros or other thick cacti. Remove a layer of healthy tissue 1/4- to 1/2-inch wide all the way around the wound and allow it to dry out on its own. If the wound is already exuding liquid or if it is low on the plant, it is too late to treat.
Why is my cactus turning GREY?
Succulents can turn gray for several of reasons but the most common reason for succulents turning gray is because of too much moisture around the roots which is caused by: Over watering. Slow draining potting soils. Pots without drainage holes in the base.
Why does my succulent have black spots?
The black spots are a fungus that has developed in the damaged plant tissue. Solution: You may not be able to save your succulent. Unpot the plant and check its roots to see if they are still healthy. If they are, trim off all damaged leaves and stems and repot the succulent in dry soil.
Can a cactus recover from sunburn?
A sunburned cactus will eventually recover and start to grow back, but it takes a lot of time. In the meanwhile, it's essential to provide special care until the sunburn is gone. If the sunburn is bad enough, then the whole plant could die because of dehydration or other complications such as mold growth.
Why is my cactus turning brown?
This is usually a sign of rotting or disease, or both. 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.