Premium Worm Castings 20L Bag
100% Premium Worm Casting Soil Amendment. Excellent source of calcium for your plants.
100% natural and OMRI listed.
Castings increase water holding capacity in the soil and improve aeration & drainage.
Will not burn plants.
Ready to use, just blend into any soil.
Loaded with beneficial microbes, including protozoa, amoeba, nematodes, fungus and bacteria that contribute to a thriving soil environment.
OMRI listed and third-party tested, our castings ensure the highest quality and consistency for gardens, greenhouses, and farms alike.
Natural plant food, suitable for:
Planters
Flowers
Indoor + outdoor plants
Gardens
Handing baskets
Application Guidelines
Mix up to 15% by volume with potting soil. For transplanting, add 250mL of castings at the base for every 30cm of plant. Top dress monthly.
Add 2.5-5cm of castings around the root ball. Apply 250mL per 2.5cm of trunk diameter during the growing season.
Apply 20L per 100m²as a top dressing.
Store in a cool, dark place in a breathable container.
Available in 3L, 20L bags, and bulk totes. Filled by volume; weight may vary.
Ingredients
Annelida’s Premium 100% Worm Castings
Safety Precautions
Avoid inhalation, contact with eyes & skin. If contact occurs, rinse with warm water. Keep out of reach of children.
Helpful information about castings:
Chitinase Production: Earthworms produce chitinase, and their digestive process transfers it into their castings.
Plant Absorption: When you apply castings to soil, plants absorb these beneficial microorganisms and enzymes, including chitinase, into their tissues.
Pest Deterrence: When pests (like aphids, spider mites, or whiteflies) feed on the plant's sap, they ingest the chitinase.
Exoskeleton Dissolution: The enzyme dissolves their chitin-based exoskeletons, leading to their death.



