Our Story

We are a  family run business Located in the North West of Ireland.

Founded with the promise of developing and marketing the highest quality seaweed fertilizer products available anywhere in the world.

We use only the highest quality raw materials when formulating our products. The seaweed, “Ascophyllum Nodosum”, that we use is hand harvested in the clean waters of the Atlantic Ocean by experienced local cutters using a traditional technique. We adhere to a careful rotation and selection policy in our harvesting areas thus allowing strict sustainable management of our seaweed stocks.

In this way we can protect the marine environment for future generations. It is of the utmost importance to our company that we diligently and rigorously maintain a positive sustainability and traceability program.


Produced from fresh Ascophyllum Nodosum and harvested from renewable intertidal bays in the cold, clean North Atlantic, off the coast of County Donegal, Ireland.

Ascoboost is a highly active, liquid Ascophyllum Nodosum seaweed extract which acts as a plant bio-stimulant, anti-stress agent and soil conditioner. Ascoboost uses an innovative cold process extraction method that does not apply solvents or high temperatures. To ensure freshness, the hand-harvested raw material is processed in a production facility located on the coast where the seaweed is collected. The seaweed is then hand-selected  to ensure that 100% Ascophyllum Nodosum will be used in the manufacturing. The raw material then goes through a micronisation process to enable the extraction of the active ingredients found in seaweed. There are no solvents or heat processes used in the manufacture of ASCOBOOST. The finished product has an opaque olive green colour and a characteristic natural aroma.  

ASCOBOOST is both a micronutrient and a bio-stimulant. It contains all of the essential nutrients required for healthy plant growth. This is one of the few products that contains every single essential element for plant growth. What’s even more beneficial and synergistic is that phytohormones are included in the same product. This is a complete phytohormone/nutrient package!

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Garden Force

All the Goodness of the Ocean – Naturally

Freshest and Most Naturally produced liquid seaweed products available. 100% Ascophyllum Nodosum carefully selected from the cleanest of waters. 100% Cold Processed to retain all the Natural Goodness. Processed within 24 hours of harvesting. Contains a huge selection of nutrients, Vitamins, Plant hormones and Antioxidants. Garden Force promotes Plant Health, increases stress tolerance and is an essential tool that helps produce top quality, healthy turf all year round.

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Get in touch

Contact Donegal Seaweed

We're here to help and answer any question you might have. Ww look forward to hearing from you soon!

Irish | Family | Genenerations 

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