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How to Make Tea Liquid Fertilizer Using Seaweed

Updated on April 19, 2013
Seaweed rock and sand. The tide is out on Charmouth beach and the touselled seaweed lies limp on the rock. The ebb and flow of the water has gone leaving small puddles in among the static waves of sand.
Seaweed rock and sand. The tide is out on Charmouth beach and the touselled seaweed lies limp on the rock. The ebb and flow of the water has gone leaving small puddles in among the static waves of sand. | Source

Making your own liquid organic fertilizer is a good idea if your garden needs some toning so that its production can improve. There are several recipes that can be used to come up with liquid fertilizers that will even produce better results than the commercial counterparts. What fascinates about this fertilizers is that they can be produced using the locally available materials i.e. materials that we can obtain without spending anything. This article will discuss a liquid fertilizer that is at the disposal of all those individuals who live near a coast line. We shall discuss about the Seaweed tea - a fertilizer that is produced from seaweed, a weed that thrives well in beaches.

What is a seaweed tea fertilizer and how will it benefit our plants?

Seaweed tea fertilizer is an organic fertilizer that is rich in potassium and other trace elements. The component it contains makes it the best fertilizer that can be used as mulch or even as a liquid fertilizer. Experts have clarified that it supplies up to 60 nutrients to the plants. In addition, the seaweed fertilizer supplies the plants with vitamins, flower-boosting enzymes and hormones.

How to prepare the seaweed tea fertilizer

The preparation of the fertilizer is easy. It only demands a strict adherence to the basic guidelines. The following is a step by step process that should be adopted if the best results should be obtained.


  1. The first step in the process is to ensure that you have the sea weed with you. Before you can go out to collect the plant, you need to seek permission from the local authorities. This is because some states do not allow collection of such items without permission. Once you have the permission, go for the seaweed that is still wet and that is still fresh. Stinky seaweed will not produce the best results. Alternatively, dried versions of the seaweed can also be used to make the liquid fertilizer. The seaweed should be rinsed so that excess salts can be removed. The excess salts can negatively affect the soil and therefore their concentration should be reduced by washing.
  2. Pour water into a barrel until it is three quarters full. Once the barrel is ¾ full with water, put enough seaweed and allow the mixture to soak. Stirring should be done after every two to four days. Leave the mixture to soak for several weeks bearing in mind that the longer the period, the stronger the fertilizer. Remember that as the mixture soaks, bad smell may be produced and therefore it is important to keep the mixture at an enclosed space so that the smell cannot turn out to be a nuisance. Once you notice that no ammonia smell can be felt, that is a clear indication that the fertilizer is ready for use.
The texture of seaweed
The texture of seaweed | Source

How should the fertilizer be used?

Now that you have your effective fertilizer, how will you apply it to your plants? Before you apply it to the plant, dilute the fertilizer with water at a ratio of three parts to one. The fertilizer should not be mixed with the soil, mixing it with soil will deprive the soil of nitrogen. For the best results, the seaweed should be used as a top dresser since with time; it will get down into the soil. Once it has come in contact with the roots, changes will then be noted.

Seaweed | Source

Tips on how to get the best results

Generally, an adherence to the above guideline will automatically translate to good results. However, the quality of the product can be enhanced by executing the following functions.

Chopping the seaweed will reduce the duration of decomposition.
It is advisable to use Kelp because it breaks down easily. Ensure that you allow the seaweed to fully decompose. When it is fully decomposed, high quality 'tea' will be obtained which will translate to high yields.

How to make seaweed fertilizer

How to make homemade seaweed fertilizer using dulse

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5 stars from 2 ratings of Liquid seaweed tea fertilizer

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Please give some feedback and share your best tips on making seaweed tea fertilizers.


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    • profile image

      Fidel ,phl 3 years ago

      Hi! Thanks for wonderful sharing re seaweeds fert. I've learned a lot .

    • jackinabox profile image

      jackinabox 4 years ago

      Thank you, bac2basics.

    • bac2basics profile image

      Anne 4 years ago from Spain

      Thank you for the praise, much appreciated. Did you see I have linked your hub to all of mine on gardening. Have a great day or night whichever is appropriate in your part of the world right now :)

    • jackinabox profile image

      jackinabox 4 years ago

      Thank you bac2basics, that is a great tip for those who do not have easy access to seaweed. I checked out a few of your hubs. They are great.

    • bac2basics profile image

      Anne 4 years ago from Spain

      Hi Jackinabox. What a great hub, fertilizer for free. I have given this a 5 star rating and voted up etc and am now going to link it to some of my gardening hubs, I have quite a few and this will go particularly well with How to make a garden on a budget, but will also link with my others too. Great job :) PS. You can do the same thing in the same way with nettles if you don´t live near the coast.