Best medium for moisture retention in hanging baskets and pots
Hi, After taking a class from a local nursery about soils etc. I'm contemplating replacing my soil on most of my container perennials and hanging baskets etc. Now that I know the potting soil I used, bagged, was mostly junk, I'd like to get more life out of my perennials and this might be the way. I was thinking that it might help to have an agent in the soil that would hold moisture in my pots and hanging baskets since there are times when I am away from home and hire a young girl down the street to water etc. I usually end up losing a few for lack of water, I'm assuming.
So....when I do this, would perlite or vermiculite be the better water holder? Or something else someone knows about? I know about pumice for drainage and airation. I do the organic thing so I don't want to use those funky water crystal things. Thanks for your help.