At Seasol we want to inspire people to change the way we grow our food and green our landscapes, so we all enjoy a healthier world, today, tomorrow and indefinitely. For over 40 years, Seasol has been manufacturing in Australia our signature garden health treatment Seasol, PowerFeed organically based fertilisers and soil conditioners, innovative water saving products, and control against pests and diseases. We make it possible to create a beautiful, productive garden in any condition. 


Browse the Seasol Range

Seaweed, humic acid and natural compost are key ingredients which help to keep plants healthy and growing strongly. The liquid Seasol plant care range is designed to help gardeners achieve their gardening goals.

To achieve a vibrant garden, with beautiful blooms and tasty edible produce plants require a balanced nutrient mix and healthy soil. Whatever plant you need to feed, there is plant food formulated to suit.

Whether you are laying lawn turf, germinating lawn seed, repairing a damaged lawn or revitalising an established lawn, a great lawn starts below the ground with healthy soil. Seasol has a range of lawn care products to help your lawn grow, healthy and strong. 

A vibrant garden, edible produce and beautiful blooms are all possible with soil care for healthy and fertile soil.  Seasol has a range of soil care products which include fast-acting liquid to help achieve healthy, fertile soil.

Give your indoor plants the care they need with Seasol and PowerFeed indoor plant care range. There are products for planting, feeding and controlling pests to give them a great place to grow strong, lush and healthy.

Harvest a bumper crop of tasty edible produce such as tomatoes, vegetables, citrus and fruits with our Seasol and PowerFeed edible produce care range. There is a product to help your plants grow strong, flower and fruit.

Protecting your plants from pests and diseases can be a challenge once they take hold. Our Sharp Shooter range of pesticides, insecticides and fungicides offers plant protection by helping to control pests and fungal diseases on your favourite plants. Included are natural* products that are safe on edible produce.

Removing weeds once they take hold can be very challenging as they set seed and take off. Control and kill weeds naturally with glyphosate-free Sharp Shooter Organic WeedKiller trigger spray and concentrate.

Featured Products

Seasol Powerfeed Fertiliser

PowerFeed is made with a unique formula that combines the benefits of macronutrients, fish and natural soil conditioners. It boosts plant growth and vigour by providing nitrogen, potassium, trace elements, protein and amino acids. It also contains liquid composts, which stimulate beneficial soil microbial activity, promote good soil structure and increase nutrient availability, so PowerFeed looks after plants above and below the ground.

Seasol Fertiliser

The Seasol Concentrate Fertiliser ensures optimum health and growth in your garden. Stimulating strong root growth, this concentrate is perfect for making your garden growth healthy and strong, whilst is also beneficial to the soil microorganisms, granting overall growth to the whole soil bed. This concentrate also promotes vigorous flowering and fruiting, making sure that your crops and garden grow strong, and helps plants cope with all kinds of stress, such as heat, drought, and frost. This ensures long-term growth, as well as overall satisfaction. It also gives plants better resistance to sucking insects and fungal attacks, ensuring your plants remain healthy, promoting better growth and production of yield.

Learn More For Better Ways to Grow

Seasol and PowerFeed

Spring feed your plants with Seasol and PowerFeed. 

Seasol and PowerFeed for Tomatoes & Vegetables

Tomatoes are the number one planted veggie in Australia, Kim shows us how to care for them with Seasol and PowerFeed for Tomatoes & Vegetables concentrate.

Seasol Pots & Plants

Kim shows us how to tend to our indoor plants with Seasol Pots & Plants spray.

PowerFeed Flowers, Fruit & Citrus

Get a healthy productive fruit tree with PowerFeed Flowers, Fruit & Citrus.

Seasol for Lush Green Lawns

How to achieve a healthy green lawn by liquid feeding every month.


What is the difference between Seasol and PowerFeed?

Seasol is made from Durvillaea potatorum and Ascophyllum nodosum turning it into a seaweed concentrate that is a complete garden health treatment that contains plant nutrients, trace elements, alginic acid 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 and pest and disease attack.

PowerFeed is a fertiliser thatg also contains dynamic soil improvers in the form of humic acids. These compounds work at very low rates and are literally like adding liquid composts to the soil. PowerFeed is also a clay breaker which stimulates beneficial soil microbial activity and markedly reduces leaching in sandy soils.

Does Seasol or PowerFeed have a use by date?

Seasol and PowerFeed liquids are fine to use for up to five years.

The date on the back of the container starting with “DOM DD/MM/YY” is the date the product was manufactured.

Seasol and PowerFeed granules (with Troforte) contains beneficial microbes that are activated when exposed to moisture. We recommend storage of open and unused fertilisers for a maximum of 12 months in a moisture free environment for best results upon application. Please keep the lid closed when not in use.

Can I apply Seasol and PowerFeed to the foliage as well as the soil?

Yes, Seasol and PowerFeed (liquid) is taken up very effectively through foliage as well as through the soil.

Products that contains a soil wetter such as Seasol Super Soil Wetter and Conditioner, PowerFeed PRO SERIES All Purpose including Natives or PowerFeed PRO SERIES Flowers, Fruits & Citrus, are soil applications only. Please ensure that you do wash it off the foliage, to prevent burning.

750mL Seasol Pots & Planters and PowerFeed Pots & Planters trigger spray and 1.25 Lt PowerFeed Indoor and Potted Plants trigger spray are highly concentrated products, so please only apply to the soil.

CAUTION: Application is not recommended on days that may exceed 25° degrees. 

What is the best time of the day to apply Seasol and PowerFeed?

First thing in the morning or late in the evening. Do not apply Seasol and PowerFeed during the heat of the day. As PowerFeed is a fertiliser it may burn the foliage of the plant or lawn. If fungal problems are an issue, it is best to apply Seasol and PowerFeed in the morning to avoid moisture residue on the foliage overnight.

If I apply Seasol or PowerFeed to my vegetable garden, can I eat the produce straight away or is there a withholding period?

There is no withholding period after applying Seasol or PowerFeed when harvesting fruit and vegetables.

However, with all plant treatments, it is important to wash edible plants before eating.

Shall we send you a message when we have promotions available?

Remind me later

Thank you! Please check your email inbox to confirm.

Oops! Notifications are disabled.