Biologic Systems Worm Castings

Worms process the essential nutrients and trace minerals found in soil, making them easily accessible to plants. Biologic Systems Worm Castings are 100% castings, produced by composting worms fed a vegetarian diet emphasizing grains and diverse minerals. These pure worm castings increase vigorous plant growth and resilience by building water holding capacity, organic matter, and structure of the soil. With no fillers, additives, or odor, this organic input is an ideal addition to any indoor, outdoor, greenhouse, container, or broad-acre system.

Ingredient: Earthworm Castings
Directions for Use
Blend with prepared or native soils at 10-25% of total volume
Mixing and Amending Soil: 2-4 oz per gal, 2-4 cups per ct. ft., 3-5 gal per yd.
Top dressing Established Plants: 2-4 oz per gal, 1.5-3 cu. ft. per 100 sq. ft.
Compost Tea: 2 oz per gal, 1.5 qt per 50-gal, 6 qt per 250-gal, 5 gals/1000-gal
Available Sizes 
1 Cu Ft bag (28.3 L) or 2000 lb tote (907.2 kg)


Price: $29.99 - $999.99

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 Biologic Systems Worm Castings
• Derived from 100% worm castings
• Teeming with diverse nutrients and microbes
• Great for compost tea/extracts, soil amending, top dressing and soil conditioning 
• OMRI Listed