Just remember.....use limestone, not lime stone powder!!! Lime stone is rock so if you guys are going to try this, think lime stone. Three years ago, I almost killed 6 of my largest fig trees using limestone powder and it wasn't an inch thick. I just added 3 tablespoons on top of the soil. I asked the lime stone questioned about 4 months ago and folks sailed they don't use lime. Well, I do. However, I only use the brown pellet slow release kind. I use it to get the right pH, around 6.5. The lime stone powder is fast acting stuff and maybe it will work for you but I would just test it on one plant. Years ago, I was experimenting with soil. Today I make my own and use UPM for cuttings. If you use the limestone, let us know how things turn out.