Check the listing for details. Espoma Compost Starter, All-Natural/Organic Composting Aid, 4lb Bags, 3 Pack. Condition: New. Listed at 32.99 USD. Espoma Compost Starter All-Natural Composting Aid makes composting faster by breaking down hard to compost items.Key Product FeaturesYou will receive 3 (4lb) bags per orderUnique, 100% bio-organic mixContains microbes cultured for fast, healthy compostingIncludes heat active varieties, used to speed the decomposition of difficult materialsSafe for pets when used as directedSlide close bag for easy storageEspoma Compost Starter is the ideal choice to help make rich, fertile compost – nature's original soil conditioner. Espoma Organic Compost Starter is formulated to accelerate the process of home composting materials including manure, grass, leaves and food waste. Compost Starter contains billions of microbes specially cultured to speed the decomposition of difficult to compost organic matter. These are combined with the proper energy sources and pH balancers to assure composting success.