Description Uni-Gro Pumice has a variety of characteristics making it useful throughout your garden. Provids excellent aeration to the soil, it loosens heavy clay soil and retains moisture well. It won't break down, compact or rot, giving your roots the space they need. Along with these characteristics, Uni-Gro Pumice will also make it easy to control nutrients. Has a neutral pH and does not give off any offensive odors. 100% natural volcanic rock. Great to use as an ingredient in succulent potting medium (1/2 pumice, 1/2 potting soil). Components:Pumice
