SOIL SCIENCE · FARMING · INNOVATION
Small castings.
Big questions for agriculture.
The science of vermicast matters from a single pot to a commercial growing system. At our Northumberland worm farm, a pioneering outlook means exploring how this living process can serve agriculture at scale — and explaining the evidence clearly.
What is vermicast?
Worm castings are the material passed through a worm’s digestive system. Vermicompost is the harvested mixture of castings and decomposed organic material. You’ll often see the words vermicast, castings and vermicompost used together when shopping for soil amendments.
01 · ORGANIC MATTER
A useful addition to soil
Organic amendments can help change soil structure and the way it holds water and air. The effect depends on the soil you start with and how much you add.
02 · NUTRIENTS
Part of the growing picture
Vermicompost contains plant nutrients, but its composition varies with feedstock and production. It should not automatically be treated as a complete feed for every plant.
03 · BIOLOGY
A process full of life
Worms work alongside microorganisms as organic material breaks down. Researchers study both the nutrients and biological activity associated with vermicompost.
Promising science.
Real-world variation.
University extension guidance describes vermicompost as a useful soil amendment and discusses potential benefits for plant growth. Results depend on the crop, growing medium, material and application rate.
That is why we avoid promising the same result in every pot. Published research about vermicompost is not the same as a test of a particular Perky Worms blend.
Our work connects that science with the practical demands of a working worm farm supplying agriculture. Scaling production, handling material consistently and understanding how growers use it are central to our approach.
Innovation belongs in the field.
For agriculture, the important questions are practical: what is in the material, how does it fit the soil and crop, how will it be applied, and what happens compared with normal practice? These are the questions that guide a useful conversation about vermicast.
We welcome enquiries from farmers and commercial growers interested in supply or exploring a trial. A clear starting point, comparison area and recorded observations help turn curiosity into useful learning.
Which is which?
COMPOST
The broader soil improver
Decomposed organic material, commonly used to add organic matter and improve soil. Potting compost is a separate growing-medium category, so check what a bag is intended for.
VERMICAST
The worm-worked amendment
Material produced through worm composting, used alongside suitable soil or growing media. Follow the instructions for the particular product.
PERKY BLENDS
Ingredients with a purpose
Our blends combine vermicast with other ingredients. Check each product’s ingredients and suitability; guidance for plain vermicast does not automatically apply to every blend.
Start with your plants
Identify what you’re growing, its growing stage and the soil or compost it is already in.
Use a considered amount
Follow the product instructions. More is not automatically better. For specialist plants or seedlings, ask us before choosing a blend.
Keep exploring
These independent university resources explain the underlying process. They are general educational sources, not endorsements or tests of our products.
- Oregon State University — Composting with worms
- NC State Extension — Composting
- NC State Extension — Raising Earthworms for a Commercial Enterprise
Meet the farm behind Perky Worms · Ask us a growing question