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Liquid Lawn Fertilizer Reviews: Keeping Your Grass Fabulously Green

Fertilizing your lawn is usually a good practice to help keep it looking healthy and green, plus it may be a necessity to keep it alive depending on where you live and what types of soils you have. There are many choices available on the market surrounding fertilizers, and it can often become difficult to decide what is best for your particular lawn needs.

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.

Liquid Lawn Fertilizer Comparison Chart

ModelCoverage AbilitySeasonalGrass TypePet and Child Safe

American Hydro Systems
2,000 sq. ftAny SeasonAnyNo

Simple Lawn Solutions Advanced
3,200 sq. ftSpring and SummerAnyNo

Ironite Plus Lawn & Garden Spray
5,000 sq. ftSpring and SummerAnyNo

Scotts Turf Builder Starter Food for New Grass
1,800 sq. ftNew Grass during spring and summerAnyNo

Lawnifi Maintain Fertilizer
5,000 sq. ftSpring and SummerAnyAfter 15 minutes

What is Liquid Fertilizer?

A liquid fertilizer is a concentrated liquid nutrient medium that provides instantaneous feed to your plants both through the soil, as well as the foliage. This helps correct any deficiencies immediately with results often visible within a few days. This type of application also provides a more consistent pattern, making nutrients more readily available to the roots with very little waste product.

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.

Liquid applications are also very easy to customize to meet the specific needs of your lawn. Usually commercial businesses are able to provide you with an assessment of your nutrient deficiencies within your soils, and suggest a method of treatment. You can also test your soils yourself to better choose what you need to apply.

How is it Applied?

Commercial liquid applications are typically mixed within large tanks and then sprayed via backpack systems, or even from the back of a fourwheeler for larger areas. Recently more ‘backyard enthusiast’ options have become available, allowing you to mix your own in gallon spray tanks, or even have specialized hookups for your hose for wider coverage.

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

Some liquid fertilizers come with an insect or weed control if you find yourself struggling with either of these problems. But it is important to note that healthy grasses with extensive root systems will eventually choke out the majority of the weeds you may have. By feeding your plants and soils many weed control problems can be taken care of naturally with the increased health of your lawn rather than through chemical treatments.

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

As with any lawn care product there are many choices available for you to choose from. Liquid fertilizers are generally a quick release feed that can have many benefits for your lawn. But there are also stipulations to how you apply it, and you also need to take into consideration what your lawn may need.

Do you need instant results?

As mentioned, liquid fertilizers provide a quick release of nutrients to your plants, and can be used to treat specific nutrient deficiencies fast to get your lawn back to looking its healthy self. But if you are looking for long term maintenance, or supplements to an otherwise already healthy lawn, you may want to consider a more slower release, granular choice.

What is the size of your lawn?

Liquid applications can be a great choice for super sized lawns. The spreading process can be accomplished much quicker than other techniques, especially if you are using any sort of motorized vehicle to help spray, or a commercial care system that has put you on a rotation of care.

Do you have the necessary equipment for liquid application?

Depending on the size of your lawn, the use of liquid fertilizer can become quite costly. The equipment used to effectively spread over a large area is specialized for proper ratio application. This consideration should be included as part of your overall lawn maintenance budget.

Do you have an insect or weed problem?

Insect and weed additions are both available in certain fertilizer mixes. If you know you have an issue with either, you may want to consider killing two birds with one stone and treating both at the same time.

Our Top 5 Liquid Lawn Fertilizer Picks

After reading through many liquid lawn fertilizer reviews, our top choices provide some of the best selling products with some of the best ratings currently available in the industry.

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

American Hydro has created an all purpose fertilizer bland which boasts a balanced 7-7-7 nutrient feed that lasts up to one month. This gallon jug can feed up to 2000 square feet and is created to work with the company’s various feeder systems to provide a broad application to plants and soils. It also comes in a maintenance formula for regular, consistent care.

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
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Best Suited For

Cons

  • Should use an irrigation system for best results
  • May have issues finding the correct application ratio

This formula is created to immediately feed your plants as well as soils to help improve upon moisture content and available nutrients, and to influence deep reaching, healthy roots. This fertilizer is best used for lawns that have irrigation systems or the capabilities of hooking up the systems offered by the company.

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

Simple Lawn Solutions are known for there wide variety of lawn and plant care products, and this advanced, balanced nutrient liquid fertilizer is a specific feed for all grass types during initial spring growth and through the growing season. The 16-4-8 ratio has a healthy amount of nitrogen to help with lush, green growth, and soils amendment.

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
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Best Suited For

Cons

  • Delivery bottle may not work well
  • If not mixed right may burn lawn

This is a quick release formula that feeds both vegetation and soils immediately, and shows fast results. It doesn’t stay long in the soils however, and a regular feeding schedule should be created for problem areas until results are noticeable.

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

Ironite Plus Lawn and Garden spray is a formula specifically created to use as a supplement to an existing healthy lawn as a maintenance measure, or with a fertilizer program. Either way, the formula feeds both foliage and roots of almost any vegetation you use it upon and greens it up quickly. It is made to use every 2 to 4 weeks during the growing season, or whenever you feel an extra boost in needed in a specific area.

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
Z

Best Suited For

Cons

  • Container may not put out correct ratio
  • Greens up all vegetation, including weeds

This is a great pick for anyone who has an otherwise healthy lawn but needs a boost every now and then, or for emerging, new lawns and problematic lawns to help promote good root growth and green foliage in conjunction with a fertilizer schedule to ensure your yard is getting all the nutrients it needs.

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

This particular liquid fertilizer has been created to specifically feed new, emerging seedlings, and support both foliage and root growth for the first three weeks. Formulated not to burn vegetation and to be safe for tender, young shoots, results may yield a 70% thicker lawn 35% faster than comparable fertilizers.

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
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Best Suited For

Cons

  • Coverage is not large
  • Requires three feedings for best results

This is an excellent choice for new grasses, whether planted from seed, sod or plugs as it directs nutrients to the roots to help stimulate new growth. It also can be helpful for areas that have been reseeded, as well as any healthy lawns that need a nutrient boost throughout the growing season.

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

Created to be applied monthly as a quick release nutrient fertilizer, Lawnifi is specifically formulated for existing lawns that need maintenance for both thickness and color. Highly concentrated, a little can go a long way, and comes in a handy spray bottle that easily hooks up to your garden hose.

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
Z

Best Suited For

Cons

  • Works best with established root system

Perfect for lawn maintenance, the lower 4-0-1 nutrient ratio (which also helps with safety) is specific to help with lawn aesthetics. Used in the spring as existing lawns begin to emerge, and then repeated regularly will help thicken almost any lawn.

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.

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About The Author

Danielle McLeod

Danielle McLeod cuts a tragic figure in the High School English classroom teaching literature by day, and moonlighting as a writer and graphic artist by night. Published in a variety of travel magazines, and now a blog, Danielle enjoys coming up with home and garden projects to complete with her two young boys. A native of Michigan, she resides in Southeastern New Mexico with her variety of horses, poultry, and variable mix of rescue dogs (there’s a cat or two in there as well). In her free time she enjoys travel, art, photography, and a good book!

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