I've read in some bonsai forums that it's possible to use cat litter in alternative to the traditional bonsai soil, which is really expensive.
I want to try it in the potting mix I'm making for my interior plants. Does it really work? Has anyone tried this?
I was thinking maybe something in the following ratio:
Cat litter 50% Perlite 30% Some organic (compost) 20%
I'm adding the perlite because cat litter is kind of heavy. Also, I'll be fertilizing it as needed.
The reason I'm willing to try it, it's because I tend to over water my plants, and I'm looking for a soil that will absorb some water, but will drain the excess, which seems to be the case for cat litter, otherwise bonsai growers wouldn't be using.
I know there are at least two types of cat litter.
There is a "clumping" type, which is made mostly of bentonite, and it clumps in the present of water, which is a great feature for the cat owner, but would be terrible for plants.
I'm talking about the regular absorbent kind of cat litter. The one I found is made mostly of sepiolite.