GRO-WELL Horticultural Perlite is a virtually indispensable soil amendment for all gardeners who care about raising beautiful plants. It is superb for amending poor-draining, heavy soils and for helping to reduce caking in potting soil mixes. With a unique mineral structure, it helps improve aeration while also increasing pore space for enhanced drainage. Free of weeds, disease and fungus, this perlite is completely sterile and is formed from naturally occurring volcanic ash that has been augmented by adding heat.
