Liquid Seaweed Fertiliser

Soil improvement and stability

Our liquid seaweed fertiliser is wild harvested by hand and comes in an organic concentrate. Seaweed fertiliser is an excellent source of nutrition to plants and succulents. Containing essential mineral content including Sodium, Potassium, Phosphorus, Nitrate, Zinc, Cobalt, Calcium, Iron, Manganese, Sulphur, Copper and iodine. Vitamins including A, B1, B2, B3, B6, C and E. Lipids and fatty acids, carotenoids, proteins and amino acid and polysaccharides. Plant hormones including phytohormones such as gibberellins, auxins and cytokinins. They enhance plant growth, and trigger hypersensitivity (elicitor) and stress responses, activating biochemical pathways allowing the plant to thrive, adapt and build resistance. It can be applied to the soil or the leaves of your plants and succulents and you will see through application, a root system that is strong, healthy and providing a vast network for the rest of your plant/succulent. Leaves and stem will grow in surface area, pigmentation and texture, all indicators of a healthy, thriving plant/succulent.

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How to Use

Combine 2 capfuls (10ml) of seaweed concentrate with 1 litre of water. For optimal results, use dechlorinated water or rainwater. Adjust the mixture as needed based on your plant's response.

Click the button below to learn more about the safest ways to use and apply our products.

  • Product Capacity

    Each 500ml bottle makes up to 50 litres of dilute fertiliser, providing a long-lasting supply for your plants.

  • Refillable Packaging

    Our bottles are designed for reuse. Check our stockists page to find refill stations near you.

  • Storage Instructions

    Keep the bottle sealed in a cool, dry place for the best shelf life. Use within 24 months, as this is a biological product.

  • Safety Warning

    Not for human consumption. Keep out of reach of children, as the bottle cap may pose a choking hazard.

  • Artwork Inspiration

    Our packaging features one of our favourite coastal spots where we relax and enjoy the local environment.

  • Supporting Research

    Proceeds from this product help fund research into seaweed’s role in sustainable agriculture and pollution reduction.

Product Specification

At Little Green Seaweed, we hand-harvest over 70 species of seaweed from our local coastline, creating a fertiliser rich in diverse nutrients. This variety boosts plant resilience, growth, and resistance, making it ideal for plants and succulents. Each bottle of fertiliser may slightly vary in nutrient levels, but we provide a nutrient list for reference.

500ml bottle

500ml of liquid seaweed fertiliser, weighing 500g (H: 190mm, D: 65mm, W: 150mm).

20L canister

20 litres of fertiliser, weighing 20kg (H: 370mm, D: 280mm, W: 230mm).

Become a Refilling Station For Seaweed Fertiliser

providing sustainable practices for businesses

We are always looking to connect with local businesses to provide a refilling station for our liquid seaweed fertiliser for plants and succulents. By having a refill station our community is able to build on their environmental responsibility and sustainable efforts. Get in touch with us, if you would like to be a part of this initiative.

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  • 500ml

    This volume is perfect for anyone with indoor plants, succulents, or a small garden or patio with a few plants.

    This volume provides 50 x 1 litre applications

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  • 20 litres

    This volume is designed for anyone in the horticultural and permaculture industry, growing and maintaining flora, or anyone with a large garden to manage or a business with many, large and various indoor plants/succulents.

    This volume provides 2000 x 1 litre applications

    Or 200 x 10 litre applications

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  • Custom Volume

    If you have a project, large space or require something different to the volumes we offer here, then drop us an email and we can discuss a custom seaweed fertiliser order for you.

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