Hoffman 16045 Horticultural Vermiculite Soil Conditioner Provides Aeration And Retains Water Contains 60 Bags Excellent For Custom Potting Mix Horticultural vermiculite is an efficient soil conditioner Loosens soil, provides aeration, retains water Can be used to start seeds, propagate cuttings and store bulbs Blend with peat moss and perlite for custom soilless mix Conditioner covers area of 2-cubic feet