Harris 8 Qt. Premium Horticultural Vermiculite for Indoor Plants and Gardening (2-Pack)

Harris Vermiculite Helps with soil aeration and drainage to keep your plants looking healthy. The Premium Horticultural Vermiculite is pH neutral, non-flammable, odorless, non toxic, and will not decay or shrink. Use with cuttings, bulbs, soil, composted bark and more. Listed with the Organic Minerals Research Institute for organic use.