

Regeneration at Every Step
At AquaCulture, we’re dedicated to helping plants flourish while protecting our oceans and soils for a regenerative future. Every product we create celebrates the synergy between the sea and the earth, using only natural, sustainable ingredients. From carefully collecting cast seaweed to crafting plastic-free, carbon-negative fertilisers, we ensure our products nourish plants without harming delicate ecosystems. Our aim is to set a new standard for truly sustainable and circular plant care, what we call The Plant Power of the Sea
Our Vision and Core Values
Circular by Nature
Our fertiliser starts with cast seaweed, collected responsibly to avoid disturbing marine life. What would otherwise be discarded becomes a valuable resource, closing the loop between ocean and earth. Nothing is wasted, and everything is given a purpose.
Plastic-Free and Proud
We’re committed to reducing plastic pollution, from our coastline to our packaging. Every product we make is housed in recyclable or reusable materials, no single-use plastics, ever. Because caring for plants should never come at the cost of the environment.
Carbon Negative Operations
We don’t just offset our emissions, we lock them away. Our process absorbs more carbon than it produces, helping you grow your garden while contributing to a healthier climate. It’s our way of proving that natural fertiliser can be good for plants and the planet.
Respect for the Ocean
The ocean gives us everything we need to create our products, and we take that responsibility seriously. Our seaweed is gathered with care, ensuring local habitats and wildlife remain undisturbed. We work alongside coastal communities to protect the places we love.
Community and Education
Knowledge is as powerful as good soil. We’re passionate about sharing what we’ve learned, whether it’s through local workshops, collaborative research, or supporting regenerative growers. When you choose AquaCulture, you’re part of a movement that’s changing how we think about plant care.
Quality and Natural
We believe the best results come straight from nature. That’s why we never add chemicals (like most), over-process, or mask what makes seaweed extraordinary. From harvesting to bottling, we preserve the raw minerals, micronutrients, and vitality that deliver visible results you can trust, using traditional methods.

Growing a Better Tomorrow
At AquaCulture, our vision is to lead the way in regenerative, ocean-powered plant care. We see a future where every garden, farm, and growing space can thrive without relying on synthetic chemicals or single-use plastics.
We’re working towards:
- Being the go to choice for keeping your houseplants, gardens and crops happy and in tune with nature.
- Expanding access to natural, circular fertilisers that restore soils and lock away carbon
- Supporting coastal communities through responsible seaweed harvesting and local partnerships
- Proving that sustainable practices don’t just protect the planet, they deliver stronger, healthier plants
- Creating more educational resources to inspire a new generation of growers who value transparency, nature, and innovation
By bridging the gap between the ocean and the earth, we aim to set a new standard for what sustainable growing can be. Together, we can build a future where we look to the planet for the answers
Journal
AquaCulture at Boardmasters 2025: Speaking on the Rising Tide Stage 🌊
AquaCulture was invited to speak on the Rising Tide Stage at Boardmasters 2025. Dan Lee Searle joined a panel of sustainable brands to share the challenges, wins, and vision behind building a truly circular business.
Learn moreSeaweed Fertiliser Trials at Tresemple Farm 🌱🌊
Tresemple Farm in Cornwall has partnered with AquaCulture to trial our organic seaweed fertiliser on their grazing fields. Traditionally, regenerative farms avoid sprayers, but in this case the 100% natural, soil-enriching power of seaweed is the exception. By comparing a treated field with an untreated one, the farm is already seeing over 30% more grass growth, richer colour and improved density - helping to provide a more nutrient-dense diet for their organic beef herd.
Learn more10 Benefits of Organic Seaweed Fertiliser for Healthy, Happy Plants
Discover the top 10 benefits of organic seaweed fertiliser. Boost growth, roots, blooms and soil health naturally with this ocean-powered plant feed.
Learn more