Contact Us


Seasol seaweed concentrate is a complete garden health treatment.

Features and Benefits of Seasol:

  • Stimulates strong root growth and beneficial soil micro-organisms.
  • Promotes vigorous flowering and fruiting and overall garden health.
  • Helps plants cope with all kinds of stress, such as heat, drought and frost.
  • Gives plants better resistance to sucking insects and fungal attack.
  • Safe to use on all plants including natives at any time.
  • Improves seed germination and reduces transplant shock.
  • Helps to increase nutrient uptake, so when fertilisers are applied they are much more effective.

Please click here to download the Australian Organic Certificate


 Please click here to download the New Zealand BioGro Organic Certificate

Product Video


  • Seasol 500mL the seaweed solution 500mL Concentrate
  • Seasol 600mL the seaweed solution 600mL Concentrate
  • Seasol 750ml 750mL Concentrate
  • 1Lt Concentrate
  • Seasol Complete Garden Health Treatment in 1.2L Bottle 1.2Lt Concentrate
  • 2Lt Hose-on
  • 2Lt Concentrate
  • 2.4Lt Concentrate
  • 4Lt Concentrate
  • 10Lt Concentrate
  • 20Lt Concentrate
  • 2Lt Hose on Twin Pack

How Seasol Works:

Throughout history Seaweed and its effect on plant growth has been well documented. Seasol seaweed concentrate is a complete garden health treatment that contains plant nutrients, trace elements, alginic acids and other bioactive compounds. Seasol promotes healthy roots, encourages beneficial soil micro-organisms, stimulates flowering and fruiting and helps plants to cope with stresses like heat, drought, frost, pest and disease attack.

Seasol is derived from a blend of the finest brown kelps from around the world – King Island Bull Kelp (Durvillaea potatorum), Chile Bull Kelp (Durvillaea Antarctica) and Knotted Kelp (Ascophyllum nodosum) from the North Atlantic Ocean. The King Island Bull Kelp is sustainably sourced from storm-cast material collected from remote Southern Ocean shores of Tasmania and King Island. Knotted Kelp grows in shallow inter-tidal waters. When it is harvested, care is taken not to remove the whole plant – the base is left intact so that the kelp re-grows. In effect, the kelp is harvested by ‘pruning’.

The processing plant used to extract Seasol liquid concentrate is the only one of its type in the world. The manufacturing process is also unique and maximizes the extraction of the seaweeds essential compounds.

How to use it

Apply to the foliage and soil around plants.

Ferns 20mL Every 2 - 4 weeks.
Foliar Application & Indoors 20mL Every 2 - 4 weeks.
Transplanting & Planting 30mL At planting and again 1 week later.
Vegies, Herbs & Annuals 30mL Every 2 weeks.
Established Garden 30mL Every 2 - 4 weeks.
New Lawns 50mL Every 7 - 10 days while establishing.
Lawns 100mL Every 2 - 4 weeks to maintain.
Large/Stressed Trees 100mL Apply to soil around dripline(canopy edge) of tree. Apply monthly.

* 9Lt diluted mixtures covers approx 2-4 sq metres

Where to buy Seasol

General Precautions

Keep out of Reach of Children. NOT TO BE TAKEN. May irritate skin and eyes. Wash hands after use. As with all plant treatments, wash edible plants before eating. Use within 24 hours of mixing.