Stronger Soils. Healthier Plants. Better Fruit.

Successful horticulture businesses start with biologically active soils and resilient plants. AgriSea partners with growers who want to lift their productivity and profitability while reducing synthetic inputs. Reliance on fertilisers disrupt the natural life of the soil, weakening microbes and fungi that are essential for nutrient cycling, soil structure, and plant resilience. Our seaweed and ocean-based biostimulants work with soil biology and plant physiology to restore these living systems. AgriSea helps unlock nutrients, strengthen root systems, and support consistent, high-quality yields across orchards, vineyards and cropping systems. By working with nature, AgriSea builds soils that hold longer, recover faster, and support healthier plants to produce high-quality fruit and vegetables so you can maximise returns and operate sustainably for the long-term.

Proven Benefits

Science-backed results on real orchards

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Kiwifruit Storage Quality

Reduced coolstorage pitting in kiwifruit by 49%, rots by 50% and softs by 32%

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Orchard Gate Returns

Orchard gate return for AgriSea-treated kiwifruit was $3000/ha higher compared to untreated fruit

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Grape Bunch Weight

11.1% average increase in grape bunch weight

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Soil pH Improvement

Increased soil pH from 5.5 to 6.2 without adding lime using Soil Nutrition

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Maize Yield Increase

14% increase in yield for AgriSea-treated maize vs conventional crop

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How AgriSea Can Help

Increase Nutrient Efficiency

Reduce reliance on inputs by strengthening root systems and activating your soil biome to unlock bound minerals, capture applied fertiliser and enhance utilisation.

Improve Soil Function

Build organic matter, topsoil and long-term soil resilience while enhancing soil structure for better aeration and water infiltration.

Plant Vigour & Growth

Promote and support strong and consistent root and shoot development by stimulating natural pathways and enhancing nutrient utilisation.

Disease Protection

Use cold-extracted bioactive compounds and nutrients to stimulant plant defences against diseases and pathogens.

More, Bigger, Better Fruit

Increase fruit size, yield, firmness and fruit quality while also reducing reject rates and coolstore pitting.

Stress Resistance

Natural bioactives improve plant resilience to heat, drought, frost and wind stresses, protecting production and crop integrity.

Testing and Analysis

Comprehensive testing covering biological, chemical and physical properties will make sure the best solutions are recommended for your specific operation.

Environmental Sustainability

Reduce your farm's footprint by reducing emissions, nitrate leaching and nutrient runoff with tailored programmes.

What Horticulturists Are Saying

"Since using AgriSea we have noticed the plants are greener, the leaves are softer, our reject rates are lower, and our dry matter is reasonably high."

Richard Russell

Bay of Plenty

Kiwifruit grower

"AgriSea Foliar Nutrition promotes flowering and the development of fruit. There is more fruit sized-up, the pack out is better, there are less fungal issues, the leaves are larger and greener. Overall we have a healthier orchard."

Scott Byles

Western Bay of Plenty

Avocado grower

"The plants are healthy and keep going through the season. They have deep green leaves with good photosynthesis."

Mike Kershaw

Nga Waka Vineyard, Martinborough

Viticulture

"The product is easy to use. We notice better leaf colour, vine health is improved and we get good cane regrowth."

Lynn Beach

Katikati

Kiwifruit grower

"We have used AgriSea Soil and Foliar Nutrition for the last 10 years on our kiwifruit and are very pleased with the health of the plants along with the microbial activity in the soil."

Judy and Rob Stott

Paengaroa

Kiwifruit growers

"When we added the foliar product, my boss (who was very results-driven), saw visible improvements almost immediately."

Conal Wattam

Northland

Large-scale avocado orchardist

"We have been applying the AgriSea soil and foliar nutrients to our vines for many years now...they contribute a lot to maintaining high health vines which can better resist diseases and improve fruit quality."

Robbie Bird

Bordeaux Vineyard, Esk Valley

Viticulture

"You could see the difference in the vines and the leaves in particular. The leaves went from a yellow colour to a very dark green. They were shiny and looked healthier."

Jacob Nooyan

Vilagrad Vineyard, Waikato

Viticulture

"We're seeing growth in our plants and not seeing any limitations like in the initial stages of converting to organics where we saw some stunted growth."

Tony Howey

ViBERi Organic Blackcurrants, South Canterbury

Organic Blackcurrants

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Next Steps

Our team is here to help develop tailored solutions for your horticulture operation. Connect with an AgriSea Area Field Consultant who can arrange an in-person consultation or provide advice remotely. We offer soil tests and visual assessments to ensure you will get the best possible results from AgriSea products.

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Horticulture Case Study

CASE STUDY

Byles & Carroll Avocado Orchard: Bigger Fruit, Better Pack Out with AgriSea-Only Program

Scott Byles and Corrine Carroll transformed their Western Bay of Plenty avocado orchard from a "hit and miss" operation to a thriving 70 bins per hectare producer. The breakthrough came when they purchased their own sprayer and switched to an AgriSea-only foliar program applied every two weeks. The results? Bigger fruit, better pack out, and a healthier orchard that keeps pace with warmer coastal properties.

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How Does AgriSea Work?

AgriSea biostimulants work by stimulating the biological systems that already exist in your soil and plants. Our products feed beneficial microorganisms, activating natural nutrient cycles that improve soil structure, organic matter and water-holding capacity. This supports stronger root systems, improves nutrient efficiency and reduces the need for synthetic inputs.

Our seaweed-based nutrition is cold-brewed using a proprietary fermentation process that preserves beneficial microbes, minerals, amino acids and bioactives. Each batch is fully traceable to its source and all horticulture solutions are BioGro Organic Certified, with no chemical additives, residues or withholding periods.

Biological activity flows from the soil into the plant. Use AgriSea's Soil Nutrition and Ocean Nutrition to support more efficient nutrient uptake, stronger photosynthesis and improved plant resilience. Meanwhile, AgriSea's Foliar Nutrition stimulates the molecular pathways in the plant itself. It delivers an immediate boost of bioactives and micronutrients, supporting growth, fruiting and stress tolerance during critical growth stages.

Backed by independent science and proven in multi-year trials across commercial orchards and vineyards, AgriSea helps growers build resilient, productive systems that deliver consistent yields, premium-quality fruit and vegetables, and long-term profitability.

Resources

Download our product brochures, application guides and technical information specifically for horticulture and viticulture operations.

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Frequently asked questions

Yes. We partner with leading research organisations including the University of Auckland, University of Waikato, Lincoln University, AgResearch, ECO Soils Research and The Bioscience Economy Institute to test and verify the validity of our products on horticulture and viticulture properties like yours. We have numerous trials and case studies available to back up every product claim we make. Many of these resources are available on our website, and our Area Field Consultants are happy to provide any further information or evidence you wish to see. Just ask.

AgriSea's biostimulants work with the soil biology in the rhizosphere (the zone around roots, from the Greek word rhiza, meaning 'root'). Here, bacteria and fungi release minerals from soil colloids and organic matter, delivering them to plants through root hairs, while plants provide energy via root exudates. This natural exchange sustains soil life, improves structure, and boosts plant disease resistance. Overuse of synthetic fertilisers can disrupt this balance, harming microbes and fungi and reducing their essential functions. Biostimulants "stimulate biology," enhancing root exudates and energising soil microbes to restore these natural cycles. Combined with careful fertiliser management, AgriSea can improve nutrient availability, soil structure, water retention, and plant resilience, helping your crops thrive naturally and sustainably.

Strong, resilient plants start with healthy, biologically active soil. AgriSea biostimulants support natural plant development, helping crops grow stronger roots that improve soil structure and create pathways for air and water. Increased microbial and earthworm activity enhances nutrient cycling, boosts disease resistance, and allows plants to access minerals that are already present in the soil. By working with natural processes rather than relying solely on synthetic fertilisers, biostimulants improve plant vigour, fruit size and quality, and overall crop performance. Plants treated with biostimulants are better able to cope with stress from drought, frost, heat or pests, maintaining productivity even under challenging conditions. Combined with good management practices, you can build long-term resilience, maximise nutrient efficiency and achieve healthier, more productive and sustainable crops.

AgriSea manufactures a wide range of products that use a variety of natural ingredients including seaweed, fish and other organic matter that will supercharge your soil and plant growth for a healthier crop and better productivity. Each orchard, vineyard and market garden is unique, so we offer in-person consultations to determine the best biostimulants for you. Our Area Field Consultants can conduct soil tests and visual assessments, and provide a tailored plan for your horticulture operation to get the best possible results.

Yes. Our Soil Nutrition and Foliar Nutrition are both safe and non-toxic, and are compatible for use with most other products (avoid fungicides, follow label instructions of other products, and jar test before use). There are no residues and no withholding periods. They can be sprayed or spread using a boom, rose, jet or chopper. The fine filtration ensures lines and spray nozzles won't clog.