I keep having this problem with my dragon fruits. I’m using a regular potting mix, but I keep getting the stems to rot after a few months. I’ll admit, I am a bit of a heavy waterer, but I also feel like my soil doesn’t have good drainage for the delicate prone-rot stem of a dragon fruit. I heard you can use a cactus mix, but I also heard that dragon fruits don’t do well in it. I heard they do best in a sandy mix. What is the best soil (from a garden shop) for dragon fruits, and how can I make the soil have very good drainage? There really isn’t that much information online for dragon fruits.