While the process is fairly simple, you should be careful. This succulent has a lot of sharp spines as well as a slightly toxic sap. Cut the leaf from the base with a sharp blade to prevent it from causing any damage to the rest of your plant. Use a sharp knife to remove the rotten root. A small cut from a jade plant can bring up a whole new plant still with less maintenance. You should ensure they are all cut to prevent infection. The obvious benefit to succulents is their ability to grow quickly.