A Closer Look At Seaweed Organic Fertilizers


Before we get into the topic of organic seaweed fertilizer, let’s talk about organic gardening. With the growing trend of eating organic food comes the rise of organic fertilizers and more people are choosing the organically grown varieties available to them. This is the direct result of chemically processed fertilizers that are known to harm the environment.

Organic fertilizers can provide plants with the nutrients necessary for a healthy growth cycle. Many organic fertilizers come from fish emulsion, compost (even local garden compost), cornmeal, and manure.

Bone meal is a healthy way for plants to get calcium. Another organic fertilizer is derived from seaweed. Basically, it is nothing more than providing proteins of plant origin, to promote the vegetative growth of plants.


Seaweed settles to the bottom of the ocean and absorbs the trace elements necessary for healthy plants to thrive. As rivers and streams filter trash and debris, the ocean floor is covered with healthy by-products from the filtration system. Seaweed found at the bottom of the ocean and packed with nutrients and trace elements that are used to produce healthy plants.

Some trace elements found in seaweed make it a perfect candidate for fertilizer. One of the most important elements found in seagrass is nitrogen, which is essential for plants to produce nitrate. Nitrate is a key component that plants need during photosynthesis. Other trace elements beneficial for healthy plant growth are magnesium, potassium, and iron. All are found naturally in nutrient-rich seaweed.

Using organic seaweed fertilizers to treat the soil to promote healthy, strong and disease resistant plants has taken generations. Although there are many types and brands of seaweed fertilizers, the applications are straightforward. A fertilizer sprayer can apply the organic material directly onto the plant using a foliar sprayer.

This application tends to produce healthier plants because the plants absorb most of the nutrients through the leaves and stem.

Besides liquid fertilizer, seaweed fertilizer also comes in powder form. To use this correctly, read the instructions on the container. Most powdered varieties need to be added to water to dispense properly. The powder is concentrated in seaweed and when the water is added it turns green or brown.

organic ferilizer


The organic seaweed fertilizer can be used for soil irrigation, foliar feeding, and even hydroponics. For best results, the fertilizer can be used in combination with other organic soil and water treatments.


The following technique of preparing organic compost based on seaweed can be called the tea bag method. We explain below how you can make an organic fertilizer, taking advantage of the potential of seaweed, mainly with the idea that you understand what is the basis of this type of product.

To prepare 5 liters of organic fertilizer, based on the potential of seaweed, you must follow the following steps:

  1. Add a half kilo of seaweed powder to a container with 5 liters of water.
    Stir the mixture well and let it sit, for 24 to 72 hours.
    After the third day, shake the mixture gently and strain. Old socks, sackcloth, or any other clean old cloth will work as a strainer.

Seaweed powder is still seaweed collected on any beach, and left to dry in the sun for a few days. Once dry, they are chopped and crushed, turning them into a powder. Obviously, not all algae have the same properties, and the selection of algae with a high natural nitrogen content favors the subsequent potential of our fertilizer.

The organic seaweed fertilizer is now ready to apply on the plants.

Notwithstanding the foregoing, if you want a product of the highest quality, it is recommended that you buy biofertilizers based on algae from approved manufacturers. At www.padrenutrients.com we have a wide range of products, and among them, we have one of the best algae fertilizers, with a strong green color, which enhances the vegetative growth of plants.

organic fertilizer


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