Super Course Horticultural Perlite, just as horticultural perlite has served the professional grower for many years, it can help the home gardener/grower solve a multitude of common problems. In addition to promoting drainage and aeration in heavy clay soils, horticultural perlite provides optimum moisture retention for successful plant growth. When horticultural perlite is added to heavy clay soils, water ponding and surface crusting is eliminated. In addition, plant roots can more easily penetrate the perlite/soil growing media and develop more fully. Horticultural perlite can be particularly advantageous in modifying the structure of general garden soil, patio plantings, and roofscapes. Horticultural perlite can be used as part of a mix to create the optimum growing medium for your grow, and with 100 litres at such a low price, why not oreder it from us.