
Liquid Lawn Fertilizer Reviews: Keeping Your Grass Fabulously Green
One choice you have that can yield some pretty immediate results are liquid fertilizers. These can come in a variety of choices for specific long term and systematic care, and are often sold as a concentrate for cost effectiveness. The best liquid lawn fertilizer is what provides the best nutrients for your lawn, and we’ve reviewed five of the top sellers to provide you with an idea of what’s available for your needs.
Table of Contents
How to Choose the Best Liquid Lawn Fertilizer for Your Lawn
- Do you need instant results?
- What is the size of your lawn?
- Do you have the necessary equipment for liquid application?
- Do you have an insect or weed problem?
Liquid Lawn Fertilizer Comparison Chart
What is Liquid Fertilizer?
Because of the liquid base, the nutrients are not available for long periods of time, and for long term treatments multiple application will usually be needed. Depending on the type of feed, and what your lawn care goals are, each feeding may last anywhere from four weeks to three months.

How is it Applied?
Lawn services often make application affordable if you choose to be put on a lawn care schedule, but you may not always get the liquid mix your lawn needs. If you plan on treating large acreage on your own, you may find you need to invest in the proper large scale equipment. More affordable are the choices that come with a built in sprayer that mixes the fertilizer with water via your hose hookup, or those that you can mix by hand. You just need to be very careful not to mix too much into your fertilizer versus water ratio, or you risk burning your lawn.
Weed and Insect Control

Lawns that have insect problems, especially those types of insects that like to hitch a ride into your house via pets and children, can often be treated with a simple insect control. Other types of insects that make a meal out of your grass and grass roots and cause extensive damage, or even death, may need to be treated multiple times to ensure all the life cycle stages have been interrupted.
How to Choose the Best Liquid Lawn Fertilizer for Your Lawn
Do you need instant results?

What is the size of your lawn?

Do you have the necessary equipment for liquid application?

Do you have an insect or weed problem?

American Hydro Systems Grass So Green All Purpose Blend Fertilizer
Quick Info
- Coverage Ability: 2,000 sq. ft
- Seasonal: Any Season
- Grass Type: Any
- Pet and Child Safe: No

Although it is an organic, plant and nitrogen based formula, it is not safe for children or pets, especially in its concentrated form, and should be kept well out of reach. Children and pets should also be kept out of the area during application, but once dried is safe.
Pros
- Provides one month of feed
- Fast results
- Greens up lawns quickly
- Overall healthier soils
Best Suited For
Cons
- Should use an irrigation system for best results
- May have issues finding the correct application ratio
Simple Lawn Solutions Advanced 16-4-8 Balanced NPK
Quick Info
- Coverage Ability: 3,200 sq. ft
- Seasonal: Spring and Summer
- Grass Type: Any
- Pet and Child Safe: No

Like many other fertilizer concentrates, this blend has a mix of natural nutrient sources, but is not safe for children or pets until after application. It is also always good practice to water soils well after applying a fertilizer to help wash it to the roots of the grass.
Pros
- Fills in bare spots
- Helps green up grass quickly
- Easy garden hose hookup
Best Suited For
Cons
- Delivery bottle may not work well
- If not mixed right may burn lawn
Ironite Plus Lawn & Garden Spray
Quick Info
- Coverage Ability: 5,000 sq. ft
- Seasonal: Spring and Summer
- Grass Type: Any
- Pet and Child Safe: No

Iron is needed for plants to create chlorophyll, which is what produces the green coloration of plants and aides in photosynthesis. Chelated iron is used as a nutrient supplement to help green up plants, but is popular due to how much easier it is for the plant to absorb it- which leaves behind very little waste.
Pros
- Feeds through foliage and roots
- High iron influences lush, green growth.
- Doesn’t burn
Best Suited For
Cons
- Container may not put out correct ratio
- Greens up all vegetation, including weeds
Scotts Turf Builder Starter Food
Quick Info
- Coverage Ability: 1,800 sq. ft
- Seasonal: New Grass during spring and summer
- Grass Type: Any
- Pet and Child Safe: No

Because you apply through a garden hose hookup, you also are able to water your lawn at the same time you are applying the feed. This is important to help mix the concentrate, but also get the nutrients to the roots of the plants – where it is needed for maximum new growth. You can also use this as a maintenance spray throughout the year to help with established growth.
Pros
- Easy to use applicator
- Increases growth rate of new grass
- Safe for seedlings
Best Suited For
Cons
- Coverage is not large
- Requires three feedings for best results
Lawnifi Maintain Fertilizer
Quick Info
- Coverage Ability: 5,000 sq. ft
- Seasonal: Spring and Summer
- Grass Type: Any
- Pet and Child Safe: After 15 minutes

Chelated iron is also found within to help work with the nitrogen content to green up your grass even quicker, and help it stay that way through soil amendment. Although dangerous in concentrate form, this fertilizer is one of the only ones to address child and pet safety, making note that it is 100% safe 15 minutes after application.
Pros
- Quick results
- Easy to use
- Good value
Best Suited For
Cons
- Works best with established root system
Conclusion
Although there are many different types of fertilizers available for you to choose from, liquid fertilizers provide a simple, concentrated packaging, and many times an easy application for smaller yards. These fast acting choices get you results quick, but often may require regular follow up feedings for better lawn establishment.
Whether you are looking for feed specific to a new lawn, or to help give a boost to a tired, worn out yard, there is something for you. Our favorite is Simple Lawn Solutions Advanced 16-4-8 Balanced NPK since it is a simple maintenance system and can be used on everything from new growth to existing lawns and shows quick results when used correctly.
If you have any favorite fertilizers, or have used any mentioned here we would love to hear your experiences below. Feel free to leave comments, and, as always, please share.