Ocean Leaves Irish seaweed fertilisers

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100% Irish

Ocean leaves seaweed fertiliser is produced in Killinick, Co. Wexford. Made from hand-harvested wild seaweed. Packed full of micro & macronutrients. Along with multi marine minerals which include calcium, magnesium and nitrogen.

The process

Ocean Leaves seaweed fertiliser is produced using a cold process. This retains all the natural plant hormones. The full range is scientifically proven to benefit your garden and is organically certified.

Unichem are the sole distributer of Ocean leaves seaweed fertilisers in Ireland. The range is available across the country In all good Garden centres.

Why use seaweed fertiliser in your garden

Over the centuries seaweed has always been used as a soil improver. Especially the case in coastal areas around Ireland. As they had an abundance available. Seaweed contains several useful plant nutrients. Including magnesium, phosphate, potassium and nitrogen. liquidised and dried forms available. Below is the full range of Ocean Leaves fertiliser on offer:

Ocean Leaves Irish Liquid Seaweed Extract + Iron 500ml

Fortified with Iron (2% EDTA Chelated Iron (fe) w/w). Made using cold-processed, hand-harvested Irish seaweed.

This product is recommended for acid-loving plants and ericaceous . Along with flowers, veg and your lawn.

Perfect to correct iron deficiency chlorosis / yellowing of leaves.

Ocean Leaves Irish Liquid Seaweed Extract 500ml + 1l

  • Induces yield increases, enhances plant health & plant quality.
  • Increases plant tolerance to, and recovery from abiotic stresses.
  • Enhances the plants ability to assimilate applied nutrients.
  • Improves soil structure and its moisture-holding capacity.
  • Promotes the growth of beneficial soil microorganisms.
  • Increases biotic stress resistance.
  • Reducing nematode infestation & pest population.

Ocean Leaves Wild Organic Seaweed 1.5kg + 5kg

Made from hand-harvested Irish seaweed & acts as a slow release plant food. It provides a range of nutrients, vitamins & plant hormones. Including alginic acid & mannitol which increase soil microbial activity. Leading to the formation of humus, improved crumb structure. Resulting in water holding capacity of the soil and overall plant development.


  • Healthier, better quality, better tasting tomatoes, fruit & vegetables.
  • Improves soil structure & boosts beneficial microbes.

Ocean Leaves Irish Organic Liquid Seaweed TOMATO FOOD 1l

Made from: Cold-processed, hand-harvested Irish seaweed with added natural vinasse potassium (7%K w/w).

Description Certified Organic by Organic Trust, it can be used on tomatoes & other fruit forming crops e.g. strawberries & apples, tuber plants e.g. potatoes, carrots, onions, turnips, as well as garden herbs.

Get in Touch

If you would like more information or to stock the range of Ocean Leaves products. Please get in touch via our contact page.

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