Check the listing for details. Espoma Organic Compost Starter, All Natural Composting Aid, 4 lb Bag. Condition: New. Listed at 21.10 USD. Espoma Organic Compost Starter, All Natural Composting Aid, 4 lb Bag PRODUCT DESCRIPTION If you are thinking of starting a compost pile this year, let Espoma’s Compost Starter help you along the way! Key Product Features Helps make rich, fertile compostContains microbes for fast, healthy compostingSpeeds decomposition of difficult materialsQuickly converts organic waste to rich humusSafe for people, pets and the planet Espoma Organic Compost Starter is the ideal choice to help make rich, fertile compost, nature's original soil conditioner. It 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.