Seasol Commercial Seasol plus Calcium Seasol plus Iron Seasol Plus PastureMasta PowerFeed Commercial Liquid Organic Humate Humate plus Earthcare Soil Wetter Earthcare Planting Gel Earthcare Water Crystals Pristine Seaweed Stockfeed Supplement

Seasol is a 100% liquid seaweed plant conditioner that provides a synergistic range of natural compounds, trace elements, alginates and carbohydrates from a blend of brown kelps. Our seaweed is not harvested from living stands, but sustainably sourced from storm-cast material collected from remote locations that are free from pollution. This ensures the highest possible quality and consistency in every drum.

Seasol is a plant stimulant used to boost plant metabolism. It is 100% soluble and can be applied either to the soil or the foliage. It is designed to provide benefits that complement your existing fertiliser program. These benefits result from a general increase in overall plant health.

Features and Benefits:

  • Aids plant establishment and reduces transplant shock
  • Stimulates root growth and enhances flowering
  • Enhances soil microbial activity
  • Increases tolerance to adverse environmental conditions

How it works:

Throughout history Seaweed and its effect on plant growth has been well documented. Seasol is a complete plant health treatment that contains a synergistic range of natural compounds, trace elements, alginates and other bio-active compounds that help to promote healthy roots, encourage beneficial soil micro-organisms, stimulate flowering and fruiting and help plants to cope with heat, drought and cold stress.

How to use it:

Use Seasol as either a soil application or foliar spray. It is especially useful at important stages in plant development, such as germination, transplant, flowering, fruit-set or at any time when the plant is growing rapidly. For perennial tree and vine crops, a post-harvest application is also recommended.

Seasol is suitable for application by conventional spray equipment including air blast sprayers, multi row sprayers, boom sprays or fertigation equipment. For plants that are hard to wet, include a non-ionic wetting agent.

Best practice requires that application be avoided under extreme weather conditions.

Available sizes:

5 litre, 20 litre, 100 litre, 200 litre or 1,000 litre

Usage Rates:

Foliar sprays For actively growing plants, vines and trees to aid Iron nutrition and increase plant stress tolerance 5-10L/ha 
Boom sprayers & Under-tree sprinklers For all types of spray equipment, use the area normally covered by one tankful to detemine how much product to add 5-10L/ha
Drip or Micro-irrigation systems Use higher rates for lighter soils 5-10L/ha
Overhead sprinklers: 
Travelling or Pivot irrigators
Use higher rates on lighter soil; lower rates on heavier soil (ie. The amount of concentrate needed per hectare of irrigated area for 10 mm of irrigation is 10L to 50L) 1L to 5L per mm of irrigation
Small volume applications 3-5 mL per litre in hand sprayers and knapsacks; 20mL to 50mL per 9L watering can


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.

Seasol should never be applied undiluted – water is the carrier to ensure proper coverage. Once diluted, it should be used within 24 hours. Seasol is filtered to 150 microns so that it is suitable for application with any conventional spray equipment including boom-sprays or irrigation equipment.

Click here to download the Safety Data Sheet

Click here to download Product Analysis for Commercial Seasol 

Click here to download Product Analysis for Commercial Seasol New Zealand

Seasol Commercial 20L