Terra Biota - Biologically Active Worm Castings
Not Your Garden Centre Castings.
Most worm castings on the market are produced on kitchen scraps, cardboard, and basic bedding material. Ours are different at the source — our worms are fed a steady diet of Inoculum Grade Compost, a biologically rich material crafted using Soil Food Web principles. As that compost passes through the worms' digestive systems, it becomes further concentrated — resulting in castings packed with a greater diversity and density of beneficial microorganisms than standard vermicompost can deliver.
The result is a small-batch, biologically active input that works with your soil's living ecosystem rather than around it.
Regular vs. Activated — Which One Do You Need?
Both variants are the same high-quality, biologically rich castings. The difference is in the state of the microbes when they arrive.
Regular Worm Castings — $30
The biology is present and intact — resting, stable, and waiting. Once introduced to your soil, moisture, oxygen, and root signals wake the microbial community up and put them to work. Ideal for mixing into potting soil, top dressing beds, or building your own extract at home on your own timeline.
Activated Worm Castings — $40
Before packaging, these castings are fed a targeted blend of natural inputs — including humic acid, kelp, and grain-based carbon — that stimulate the full spectrum of biology from bacteria through to nematodes. The microbial community arrives awake, active, and ready to work immediately on contact with your soil. Best when you want results fast — transplants, seed treatments, early-season soil inoculation, or any situation where getting biology established quickly matters.
Not sure which to choose? If you want to hit the ground running, go Activated. If you are building a system over time or making your own extract, Regular is the right fit.
Why Use Worm Castings at All?
- Biologically Dense: Loaded with beneficial bacteria, fungi, protozoa, and nematodes — the living community your soil needs to function.
- Nutrient Cycling: Supports plants' ability to access nutrients already locked in your soil — reducing the need for synthetic inputs.
- Root Health & Resilience: Promotes stronger root systems, improved soil structure, and greater resistance to stress.
- A Little Goes a Long Way: These are a microbial inoculant, not a bulk soil amendment — small amounts deliver meaningful biological impact.
How to Use Them
- Top Dressing: Sprinkle a small handful around the base of plants and water in.
- Soil Mixing: Blend 5–10% by volume into potting mixes or garden beds.
- Homemade Extract: Add 1–2 tablespoons per gallon of non-chlorinated water, agitate gently, and apply as a foliar spray or soil drench within 24 hours.
- Compost Booster: Add a scoop to compost piles to accelerate biological activity.
- Seed Treatment: Coat seeds before planting to jumpstart early root-microbe interactions.
Frequently Asked Questions
How are these different from fertilizer?
Fertilizers feed the plant directly — they bypass the soil ecosystem entirely. Worm castings feed and inoculate the soil's living community, which in turn feeds the plant. The difference is short-term input versus long-term soil function. Castings build capacity; fertilizer rents it.
How much do I need?
Less than you might think. These are a biological inoculant, not a bulk amendment. A 2.9 kg bag goes a long way — enough to treat a significant number of transplants, top dress multiple garden beds, or make several batches of homemade extract. When in doubt, reach out and we will help you figure out the right amount for your situation.
Can I use these on my lawn?
Yes — as a top dressing or dissolved into water and applied as a drench. For larger lawn areas, our Liquid Compost Extract or one of our Biological Lawn Care programs will give you better coverage more efficiently.
Are they safe for children, pets, and pollinators?
Completely. No synthetic inputs, no chemicals, no toxins — just biology.