A natural soil conditioner, castings encourage plant growth and improve aeration and water retention. Our 100% worm castings are not composted, mixed or diluted in any way—you get over 50% more worm castings by volume than in other brands! Use it liberally to improve soil beds for vegetables, annuals, perennials, shrubs and lawns. Excellent for covering small seeds like lettuce, carrots and onions at planting time. Improves germination and young plants get a great start. Dry formulation is easy to use—won't "burn" even delicate seedlings.