Earth Science Earthworm Castings

No, this product is non-burning. Because it is a natural, organic soil conditioner, it is safe to use on sensitive seedlings and indoor plants without the risk of chemical fertilizer burn.

Not at all. These earthworm castings are virtually odorless, making them an excellent choice for indoor container gardens or greenhouses where you don't want a lingering compost scent.

Simply sprinkle a small amount of the granular castings onto the soil surface around the base of your plants. You can gently work it into the top layer of soil or let it naturally filter down through watering.

Yes, it is perfectly safe for edible crops. It is OMRI Listed, meaning it meets the strict standards required for organic gardening and production.

While potting mixes provide structure, these castings actively boost microbial activity in the soil. This creates a living ecosystem that helps your plants absorb nutrients more efficiently over time.

Because this is a slow-release amendment, you do not need to apply it as frequently as synthetic fertilizers. A light application at the start of the growing season or when potting new plants is usually sufficient to provide a steady stream of nutrients.