Perlite is used in potting soil mixes because it modifies the structure of soil and improves aeration by keeping it loose and preventing compaction. 

This lightweight Perlite provides superb aeration and moisture retention when mixed in with other soil materials. Perlite supports root growth and retains moisture, air, and nutrients.

Perlite is also an excellent rooting medium for cuttings. Roots formed in perlite are much stronger than those formed in water because perlite allows oxygen to reach the roots as they develop, enabling the roots to adapt more readily to a soil environment.

2 Cubic Foot bags