Seaweed has long been used to promote plant growth way before the use of commercial fertilizer became all the rage. Seaweed-based fertilizers provide many benefits to plants that conventional forms of fertilizer just don’t have! Kelp, in particular, is an organic alternative to chemical fertilizers, which you can use for plant application for direct leaf uptake. 


Read on to find out why liquid kelp is one of the best and most popular organic agricultural products out there.


What is kelp fertilizer?


Kelp fertilizer is a natural alternative for growing plants that is free from any by-products or harmful chemicals. The seaweed used to create this sustainable product can be easily harvested without causing harm to the environment. Kelp’s maturation in length is considered one of the fastest growth rates in plants, growing up to three feet per day.


If you’ve seen those large patches of green land in golf courses and football fields, that’s possible through the use of kelp fertilizer!


How is kelp fertilizer made?


Kelp fertilizer commonly comes from a species of seaweed known as Ascophyllum Nodosum, which is mainly found in the cold northern waters of the Atlantic Ocean. The process of making the fertilizers starts by harvesting the kelp and then washing it to remove the salt. They are then dried and turned into powder.


What are biostimulants compared to fertilizers?


Technically, kelp is considered a biostimulant—which is different from fertilizers. Biostimulants are substances or microorganisms that stimulate existing biological and chemical processes in plants. They merely trigger the natural processes of plants that are already there.


On the other hand, organic or biofertilizers are materials of biological origin that contain sufficient levels of plant nutrients (nitrogen, phosphorus, potassium, etc.), which can cause an increase in plant growth and quality. These materials are quickly absorbed by plants and are usually made from seaweed, fish, land animals, and other plants.


Naturally, kelp and seaweed can be used as an additive to fertilizers and other organic agricultural products. But using it on its own makes it a potent biostimulant that has a lot of benefits to plants.


What are the benefits of using kelp fertilizer?


Liquid kelp can be applied to plants at any stage of its life cycle. Some even claim it to be a miracle product that can provide a number of benefits, including:


  • Increasing flower production
  • Making fruits taste sweeter
  • Encouraging root growth and root mass
  • Making vegetables less prone to softening
  • Improving soil structure
  • Accelerating plant growth
  • Longer survivability even after harvesting
  • Enhancing overall plant resilience and resistance to disease


In addition, using kelp as a biostimulant helps plants absorb nutrients more effectively from the soil. If added with natural fertilizers, it can improve the overall quality of any crop or plant!




When it comes to farming and nurturing plants, nothing beats kelp fertilizer in accelerating the growth and development of plants. There are truly no downsides to the use of kelp as a fertilizer. While organic fertilizers are significantly better than synthetic fertilizers, kelp-enriched fertilizers outshine both because of the countless benefits they can provide.


If you’re looking for sustainable alternatives to your farming needs, turn to Organic AG Products. We offer all-natural fertilizers, pesticides, and insecticides that are safe and easy to use. For more than ten years, we’ve been providing quality organic products that help you produce healthier crops without compromising the quality. Order our organic pesticides and fertilizers today!