Seaweed Biostimulants

Crop yield and resilience - powered by the ocean

The science behind seaweed biostimulants is promising. Improved crop resilience, nutrient use efficiency, and overall plant performance have been demonstrated in trials. But, every farm is different. We partner with growers to put the science to the test. We aim to provide trial products and support so you can evaluate potential benefits under real conditions in your fields.

Our seaweed

We grow Sugar kelp (Saccharina latissima) on our own small farm at Porthallow, Cornwall. Sugar kelp cultivation harnesses the productivity of coastal waters to create a highly sustainable, renewable resource. Rich in bioactive compounds, sugar kelp supports soil health, enhances plant resilience, and promotes stronger crop growth when used as a biostimulant.

Kelp cultivation also contributes to carbon capture and improved water quality, making it an environmentally responsible choice. By transforming ocean-grown kelp into agricultural inputs, we connect marine ecosystems with more sustainable farming solutions.

Our Biostimulants

Seaweed-based biostimulants are typically produced either via fermentation or extraction. We produce three different types:

Bokashi fermentation is a traditional Japanese composting method used to convert organic material into soil improvers. We ferment our seaweed using a range of beneficial micro-organisms, to extract the bioactives from our seaweed. Seaweed biostimulants can be supercharged by the addition of whey - a by-product of cheese production. The whey contains beneficial bacteria, extra minerals, nutrients, and proteins that complement the seaweed bioactives. We are working with our partners at Lynher Dairy to develop and test seaweed and whey-based formulations.

Acid and alkali extractions using compounds such as citric acid and potassium hydroxide are a simple approaches to stablise and break down the seaweed to release valuable active ingredients.

Interested in trialling or purchasing?

We are currently speaking with growers and partners interested in biostimulant trials and early commercial supply.

Discuss a Trial General Enquiry