I was going to start a new thread on this, but this thread is talking about the very thing, so I hope nobody minds me chiming in here. I found a video posted by Planterina, youtube.com/watch?v=2Nt3kUDZcVY
So I made a mixture of 60% sphagnum peat moss (I already had a bag laying around, I actually like the idea of using coco coir), and 40% pumice, and put in a decent amount of worm castings. However this soil does NOT drain well at all. Currently I only have a lucky bamboo in it right now, which fortunately likes to be wet. But I'm hesitant to use it with my other plants, because it seems to stay wet forever. It's been 10 days since I watered my bamboo, and that mixture is still very damp on top. It's in a ceramic pot with a drain hole on the bottom. Any ideas what is wrong with my soil mixture? I was kind of excited to have a good soil recipe, but this seems to hold too much water.