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Plant feed Seasol

Has anybody used the product called Seasol, as far as I can see it contains hardly any nitrogen or phosphorus but claims to have many benefits, stimulates root development, increases pests and disease resistance and many other claims.


  • Pete.8Pete.8 Billericay, EssexPosts: 8,509

    Seaweed extract is a supplement/tonic, not a fertilizer, so is used alongside your usual fertilizer.
    I grow tomatoes amongst many other things. I feed the toms with Tomorite once a week and give them seaweed once a week too.
    Seaweed extract contains lots of trace minerals that are important to plant life, but not always found in soil or traditional NPK fertilizers.
    I buy mine from Amazon

    Knowledge is knowing that a tomato is a fruit.
    Wisdom is not putting it in a fruit salad.
  • Thx you buy the Seasol brand or is there cheaper alternatives?

  • Pete.8Pete.8 Billericay, EssexPosts: 8,509
    Knowledge is knowing that a tomato is a fruit.
    Wisdom is not putting it in a fruit salad.
  • ZenjeffZenjeff Newcastle Upon Tyne Posts: 627

    I have used liquid seaweed for many years  I use Shropshire I class it as a fertiliser and folier  feed


    Liquid Seaweed4 - 2 - 3Slow release of potassium and good source of micronutrients. Contains plant growth hormones that stimulate plant and root growth. Gives a quick boost for greening foliage, and when mixed with fish emulsion or hydrolized fish, it can't be beat because the two benefit one another in so many ways. Its growth promoting substances enhance plant development, color and vigor. Seaweed has also been found to increase plant hardiness and resistance to adverse environmental conditions, such as early frost, extreme heat. and lack of moisture. Used as a seed inoculant, seaweed fertilizer increases and accelerates germination, and enhances the rapid development of a healthy root system. Good for all plants as a general energizer.

  • thx again, great advice, will certainly be putting that information into practice.

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