Limestone - bad for plants?
Hi guys, I have 5 houseplants. A spider plant, a butterfly palm, yucca, prayer plant and a lucky bamboo. My lucky bamboo is sat in water but the other 4 plants are in soil in the plastic pot then the plastic pot is in the "pretty" outta pot with limestone around the plastic pot, underneath (so the plastic pot doesn't sit in water) and then on top of the soil.
I've been told limestone can be bad for plants and was wondering what people on here thought? we originally only bought the limestone to go underneath the plastic pot so the water didn't cause root rot and then we were going to put soil everywhere else but ended up putting the limestone around and on top. What do people on here put under to stop root rot?