Introduction
At AquaCulture, we believe the future of farming and gardening starts with the sea. Based in Cornwall, we collect cast and waste seaweed from local beaches and transform it into natural, nutrient-rich fertiliser for plants, lawns, gardens, and growers. Our mission is simple: to nourish the land while protecting the ocean that feeds it.
What We Do
We create high-quality seaweed fertilisers using only seaweed that has already washed ashore. This means we never harvest from live kelp beds or interfere with marine ecosystems. Instead, we take what nature leaves behind and give it new life as a sustainable, circular input for soil health and plant growth. Our fertilisers are safe to use on everything from houseplants to commercial crops, supporting growers at every scale.
How We Do It
Everything we produce is made on-site in Cornwall using solar power and fresh borehole water. The seaweed is soaked, filtered, pressed, and bottled with minimal intervention, preserving its natural nutrients and growth-promoting compounds. We use no chemical additives, no synthetic fillers, and no unnecessary processing. What ends up in the bottle is real, pure seaweed in a form plants can absorb and benefit from straight away.
What Makes Us Different
Unlike mass-produced fertilisers, AquaCulture is fully circular. We collect seaweed by hand, clean beaches as we go, and return the nutrients from the ocean to the soil without any waste. We don’t cut corners or scale for volume at the expense of sustainability. Every bottle we sell directly supports local ecology, reduces waste, and offers growers a cleaner alternative to synthetic or mined fertilisers. Our small-batch approach allows us to stay close to the process, ensuring every product reflects the care and ethics behind our brand.
Our Vision for the Future
We see AquaCulture as more than a fertiliser company. We’re building a future where regenerative agriculture and horticulture work hand in hand with ocean protection. That means supporting farmers and gardeners with solutions that restore soil health, reduce chemical dependency, and improve biodiversity. It also means leading by example in how we interact with the marine environment, showing that it’s possible to create value without extraction. As we grow, we plan to scale our production sustainably, collaborate with growers and conservationists, and contribute to a wider shift toward earth-first solutions across food systems and landscapes.
Final Thoughts
AquaCulture is rooted in place, purpose, and respect for the planet. From the sea to the soil, we’re committed to doing things differently. Whether you’re growing a single houseplant or managing acres of land, we’re here to support your journey with a product that gives more than it takes. This is fertiliser that feels good to use, because it’s made with care, for the future.
