Perlite
Horticultural perlite is an easy to use, lightweight, sterile soil conditioner that provides a number of important benefits to commercial growers, landscapers and home gardeners. A primary benefit is the ability of horticultural perlite to improve aeration and drainage of excess water. Perlite exhibits a unique moisture exchange property whereby optimum amounts of water and water-soluble nutrients are maintained for use by plants as required. It is inorganic, does not decompose or break down, and has an almost neutral pH range of 6.5 to 7.5. It also serves as an insulator by reducing extreme soil temperature fluctuations which can be detrimental to good root development and vigorous growth. Perlite can be used to advantage in almost every horticultural application.
