A basic guide to water soluble fertilizers

- Jun 05, 2020-

Water soluble fertilizers are fertilizers that can be dissolved in water and added or leached out of the soil easily. With water soluble fertilizers it is easy to control the precise amount of nutrients available to your plants(the control is more exact with soilless mixes).


Nitrogen is the most important of the nutrients. It controls the processes used to make proteins vital to new protoplasm in the cells. Nitrogen is essential to the production of chlorophyll and is responsible for leaf growth, as well as, overall size and vigor.


Phosphorus is necessary for photosynthesis and provides a mechanism for energy transfer within the plant. Phosphorus is associated with overall vigor and is used at it’s highest levels during germination, seedling and the fruiting or flowering stages of growth.


Potassium, or potash, provides the manufacturing and movement of sugars and starches, as well as, growth by cell division. It also increases chlorophyll levels in the foliage and helps regulate the stomata openings so plants make better use of light and air. Potassium is important in all stages of plant growth.


Magnesium is the central atom in every chlorophyll molecule and is essential to the absorbtion of light. It aids in the utilization of nutrients and also neutralizes soil acids and toxic compounds produced by the plant. 


Trace elements are vital to chlorophyll formation and must be present in minute amounts. Little is known about the exact amounts needed. They function mainly as a catalyst to plant’s processes and the utilization of other elements.


The ultimate goal of fertilizing is to supply your plant with the right amount of nutrients, yet, at the same time not toxifying the soil via over-fertilization. Once a plant is placed into a container, with new potting soil, the plant will have enough nutrients to last about a month and will then need to be fertilized for continued growth.


With a regular watering/fertilization system your plants can reach amazing results and in some instances can almost double the growth of a slow, sickly growing plant. Using water soluble fertilizers is the easiest way to keep your plants (household, garden, or container) constantly recieving the most nutrients that they are able to absorb, thereby, increasing the amount of growth. It is also the easiest fertilizer to apply for the beginning or the professional gardener and is, therefore, the most widely used. So try it with your plants and see what amazing results you too can yield with the proper usage of water soluble fertilizers.