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Seasol 600ml Concentrate $4.80 (Was $8.20) 41% off @ Woolworths


Spring is here and Seasol will help keep those plants happy. Seasol concentrate 600ml makes 270L. Stores well so you can use it next year too.

Powerfeed fertiliser to get those plants growing also available for the same price.

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  • To make your plants grow
    power feed

    • Agreed. Seasol is a tonic (a very good one I use regularly) but not a fertiliser.

      • Seasol is made from two species of seaweed – Bull Kelp (Durvillaea potatorum), Chile Bull Kelp (Durvillaea Antarctica) and Knotted Kelp (Ascophyllum nodosum). It is not, by definition, a fertiliser (as it contains only marginal nitrogen and phosphorus levels). Seasol seaweed concentrate 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. It has a fish base which is fortified with nitrogen, phosphorus and potassium. The ratio of which is Weight to Volume N 12%: P 1.4%: K 7% respectively. PowerFeed 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. As well as being a quality fertiliser, PowerFeed is also a clay breaker. It stimulates beneficial soil microbial activity and markedly reduces leaching in sandy soils.

        Agreed it’s not a fertilizer, but it does a damn good job at giving plants a kickstart any time I use it.

    • I mix Seasol and Powerfeed together before watering the plants.

      Ok to mix?

      • No harm but you’re potentially overdoing it. Horses for courses.

        • They are for pot plants I may add.

          Would there be any benefits use separately two weeks apart?

          • @JB1: Seasol do a powerfeed for pot plants. Give that a go instead. It’s a spray.

            • @LittleTicket: Naaah, have plenty of regular Powerfeed left.

              Plus it looks like it's just Powerfeed that been diluted with 3 parts water lol.


              W/V: Nitrogen (N) 12.0%. Phosphorus (P) 1.4%. Potassium (K) 7.0%

              PowerFeed Indoor & Potted Plants:

              W/V: Nitrogen (N) 3.0%. Phosphorus (P) 0.4%. Potassium (K) 1.8%

              Great marketing though!

  • This is $4.75 at Bunnings regular price..

  • Maths doesn't check out for 50% off

  • Sorry to remind those who missed out but still have a few left from the Bunnings [email protected]$3.75 bargain

  • Today's OzBargain fun fact - Seasol stands for Seaweed Solutions

  • Great for lawn and roots too.

  • This stuff mixed with seasol works wonders on outdoor cannabis plants.

  • I have a dead little bush plant, will this revitalise my bush?

    • If it’s actually dead, then no. If it’s sick, it’ll give it a good shot.

      • ok thanks, I don’t know what I did wrong. Turned brittle and stick like. Not enough water perhaps.

        • When you plant a new plant, use seasol right away. Then normal as water over the course of 2 weeks if necessary, and then use seasol again. Repeat 3 times (so over 6 weeks). Your plant will love you for it.

        • Really depends on the plant. Most likely water, but could also be soil (too acid/alkaline or even contaminated, although that's unlikely), inadequate or too much drainage (clayey/sandy soil), possibly the wrong or too much fertiliser. Some natives require special low phosphorus fertilisers and will react badly to compost.

          Most new plantings require regular watering until they settle in. Even then plants from nurseries (and supermarkets) are often very slow to spread their roots outside the potting mix so can't take up moisture and nutrients from the surrounding soil.

          Trick when planting out is to dig a large hole (at least 4x the size of the pot) and mix some water crystals and potting mix in with the existing soil before you shovel it back in and plant the shrub. Water in well then keep the water up to it for a few weeks at least - more in dry areas and in places with sandy soil obviously. Don't over-water though - you want to encourage the plant to push roots into the surrounding soil in search of moisture and nutrients asap. Normally you don't fertilise new plantings although seaweed tonic and slow release fertiliser are okay.

            • @blorx: Looks like it dried out. If you're desperate it might be salvageable if you immerse the pot in water for a few hours and cut it right back. Probably easier to buy a new hardier plant. Unless you don't care much about a plant or it's really hardy always use good quality NEW potting mix, add some water crystals and soak the potting mix if you can. Plants generally need repotting with refreshed potting mix every couple of years. They become root bound, which doesn't help their uptake of water or nutrients.

  • Bunnings has this cheaper and it's a normal price. not special.

  • so if my grass is a bit yellow-ish, will this help?

    • You need water and sun.

    • Probably a mineral deficiency with yellowing. Sort of like needing a vitamin tablet, so PowerFeed would be better for that. However fertilising can be overdone, much like how vitamin overdoses are bad. Seasol is more like giving plants a personal trainer to go above and beyond normalness. Some is good (and progress is made) but if you go overboard with it then the plants will just ignore the additional Seasol. That’s why it is suitable for delicate seedlings and natives (who get burned by most fertilisers).

  • +2 votes

    I've started combining the three products Seasol + Powerfeed + Seasol Liquid Compost.
    50mL of each into a 50L bucket and then spreading it around the garden via watering can.
    Time will tell if it is effective but so far it seems to be working.

  • Add molasses for great lawn too. Powerfeed + seasol + molasses.