Liquid Lawn Fertilizers are a lawn fertilizer product which is in a liquid form, most of these products are sold in a container which can be easily attached to a garden hose, The water from the hose then mixes with the concentrated liquid lawn fertilizer, dilutes it and the spray is released from the exit point on the container, and directed onto the lawn by the person applying the product.
Liquid lawn fertilizer is a very quick and easy method of applying fertilizer to a lawn, it's effects are almost immediate due to the way the fertilizer is taken up by the lawn. Once applied, the liquid fertilizer is left to sit on the leaf of the lawn and is then absorbed very quickly through the leaf, with an equally quick effect on promoting the lawn's health.
Many of these spray on fertilizers also contain a weeding product which can help in controlling weeds. It is important to remember that the herbicide being used in these products will be very weak and have limited impact on controlling weeds on a long term or efficient basis. These products which contain the herbicide are often not suitable for use on Saint Augustine lawns, so always check the product label before purchase and before use.
This method of lawn fertilizing may seem like a very good idea, and in many cases it can be, but there are some downsides to this method.
Usually the fertilizer being used is weaker than what would be found when using a granular fertilizer, this weakening of the fertilizer is done on purpose in order to make it a safer product for the homeowner to use. This is because if a high level of Nitrogen were left to sit on the leaf of the lawn for a long period of time, and on a hot day, the the Nitrogen would burn the lawn leaf and possibly cause great damage or death to the lawn.
Also, due to the weak nutrient makeup of liquid lawn fertilizers, and combined with the use of the product which is supposed to sit on the lawn leaf, a problem can occur if it rains. The end result is that the ferilizer you've just paid for gets washed away, the lawn gets no nutrients, and the nutrients which were washed away by the rain now end up in our drains and our water ways adding to the damage which continues to harm our environment.