Quality Vermicompost and Soil Amendments West Ranch Worms and Vermicompost in Springfield, OH strives to ensure quality worm castings. We test our worm castings and post the results for transparency. West Ranch Worms and Vermicompost is an environmentally friendly company and works with local restaurants and coffee shops to reduce landfill waste. We sell worms, worm castings or vermicompost, and urban worm bags.