Seaweed biostimulant - available for sale in 2026!

Crop trials: KelpCrofters commissioned controlled trials on spring barley in Scotland (2024), in which our liquid kelp extracts were applied at various concentrations. The kelp extracts significantly increased barley yields by up to 8%. The scientific trials are being repeated in 2025 to refine dosing and prepare for launch of our biostimulant in 2026. Read about the trials in our blog post here.

KelpCrofters are developing a liquid seaweed extract that is rich in active ingredients that boost crop production and health. It is made made from sustainably grown Scottish kelp, and functions as a plant growth stimulant (biostimulant) rather than a fertiliser.

Farmers have understood the benefit of using seaweed for hundreds of years to support the healthy growth of their crops. When liquid kelp is applied as a foliar spray it: stimulates new cell growth to promote root and shoot development and leaf greening; improves plant stress tolerance; and enriches the soil microbiology. It also improves nutrient uptake so that plants can make better use of any fertilisers already present in the soil. This all translates into improved yields, and greater returns.

Be Climate Resilient: KelpCrofters seaweed biostimulant helps plants survive and thrive with less water, which is increasingly important with global warming and more regular dry spells. See trial results here.

Production and Composition: As farmers ourselves (albeit at sea!) we understand that agriculture has become a precise science, and we are collectively striving for reliability and effectiveness. Full details on the production process, composition and active ingredients can be found here.

Contact us for a full Technical Data Sheet.