The Best Liquid Lawn Fertilizers for a Green & Lush Lawn in 2022
Publushed by:
RebeccaLast updated:
January 3, 2022
WINNER
Simple Lawn Solutions Growth Booster
- Volume: 32oz
- Grass Types: All
- Usage: Spray bottle
RUNNER UP
Simple Lawn Solutions 3-18-18 Liquid Fertilizer
- Ingredients: Phosphorus, potassium, nitrogen
- Grass Types: All
BEST BUY
Simple Lawn Solutions Lawn Food
- Ingredients: Seaweed, fish, nitrogen, phosphorous, potassium
- Grass Types: All
Liquid fertilizer can provide a fast and effective boost for whatever it’s applied to, and if you’re looking to transform your lawn, they’re the way to go.
One quick look at the market for fertilizers and you’ll see just how many choices there are, though, so finding the perfect match for your grass can be tough.
What does a liquid fertilizer need? Liquid fertilizer for lawns should be chosen to meet both you and your lawn’s requirements, as there are many different types.
Features to consider include application method, application frequency, type of grass, and ingredients and nutrient formula.
Whether it’s organic fertilizers or the traditional liquid kind you’re looking for, our guide will separate the wheat from the chaff.
We’ve chosen our favorites in the liquid market so you’ll have only the finest fertilizers for your lawn.
Our Picks for the Best Liquid Lawn Fertilizer
Liquid lawn fertilizer can provide an immediate boost of nutrients to your grass and for many, they’re the preferred method of fertilization.
If you’re in the market for some liquid gold for your lawn, check out our recommendations to see which is best.
Best Overall: Simple Lawn Solutions Growth Booster
Short summary
Growth Booster from Simple Lawn Solutions uses an advanced humic acid formula that works for new sod and established lawns and it comes in a 32oz hose end sprayer bottle for easy application.
With included ingredients 18% phosphorous and 6% nitrogen, you’ll get vigorous and dense growth, and it’s been formulated to suit all grass types including Bermuda, buffalo, and Kentucky bluegrass.
Simple Lawn Solutions has created Growth Booster as a one-stop shop for healthy grass.
Made with a formula that contains humic acid, it promotes vertical and lateral growth and also features phosphorus and nitrogen for root development, green coloring, and a dense coverage.
Simple Lawn Solutions is a US-based company with 25 years’ experience and a focus on turf, so you can put your trust in them.
This lawn fertilizer suits all kinds of grass including Bermuda, Zoysia, and Kentucky Bluegrass and more, so it’s all-encompassing, and you don’t even have to know what grass you have to get results from this one.
People also noted that it was effective for establishing sod and grass that was already mature, so you can treat patchy lawns and those at different growth stages or recently seeded with just one sprayable solution.
The 32oz spray bottle attaches to the hose for easy application but some people found it hard to gauge how much was going to come out, so there was a bit of waste at first.
The results were obvious though, with people noticing thicker, longer, and denser grass with a vibrant green color, and that was just a few weeks after one spray.
If you want the holy grail of liquid fertilizer for your lawn, give Growth Booster by Simple Lawn Solutions a shot.
Quick Facts
- Ingredients: Humic acid, phosphorus, nitrogen
- Volume: 32oz
- Grass Types: All
- Usage: Spray bottle
Pros
- Contains humic acid
- Easy-spray bottle
- 3-week results
- Suited to all grass types
- One-application to cover your entire yard
Cons
- Comes out quickly
- Small bottle
Runner-Up: Simple Lawn Solutions 3-18-18 Liquid Fertilizer
Short summary
The 3-18-18 Liquid Fertilizer from Simple Lawn Solutions is a high phosphorus and potassium lawn solution with just 3% nitrogen, designed to strengthen your existing lawn and assist with root development.
The 32oz spray bottle can be attached to a hose for easy application and the formula suits all grass types, with a focus on new and developing lawns.
3-18-18 from Simple Lawn Solutions contains high levels of both potassium and phosphorous, so it’s all about strengthening the grass and making it more durable.
The US-owned brand has been making turf products for 25 years and they know what they’re doing, and still manage to create fertilizers that are affordable and highly effective.
This is the best liquid fertilizer for new sod because it’s all about strengthening the roots underneath and making the grass hardier.
However, because it does most of its work under the ground, it won’t make a massive difference to the color and look of the grass at first, which put some people off.
The lower level of nitrogen, which is usually responsible for the vibrant green color, means you’re better choosing another formula if this is the result you want.
You’ll get around 3,2000 square feet of coverage from the 32oz bottle and it attaches to your garden hose for application.
Some people found it sprayed a little too hard, so you have to get used to it but considering you see results in just two weeks, it’s worth the learning curve.
The 3-18-18 liquid lawn fertilizer concentrate is the best option for lawns that need strength and it’s suitable for all types of grass and at all growth stages, so consider using it to give yours a boost.
Quick Facts
- Ingredients: Phosphorus, potassium, nitrogen
- Volume: 32oz
- Grass Types: All
- Usage: Spray bottle
Pros
- Perfect jump start
- Tougher roots
- Multipurpose
- Easy spray-on
- 2-week results
Cons
- Not suitable for everyone
- Cannot adjust how much comes out
Alternative: Petra Tools Max Strength Nitrogen Fertilizer
Short summary
Petra Tools Max Strength Nitrogen Fertilizer is a high nitrogen formula designed to bring the green back to your lawn. Coming in a 32oz bottle that can be mixed to cover 6,400 square feet of grass as a more concentrated solution or for lighter coverage of 12,800 square feet.
This unique formula from Petra Tools features both slow and quick release liquid nitrogen that gives immediate results and long lasting ones.
Max Strength Nitrogen Fertilizer from Petra Tools is exactly as the name suggests: the only nitrogen fertilizer you need for your lawn.
The high powered formula is all about making green grass and helping it to grow, which it succeeds just a few weeks after application.
Unfortunately, you will need to mix the fertilizer up yourself and purchase a separate sprayer, but the results make this bit of effort worth it.
One of the coolest things about this fertilizer is that it contains both quick and slow release nitrogen. 70% of the formula is quick release for fast results and rapid growth, and the following 30% will cover you between applications, giving you two fertilizers in one.
Better still, it works on all grass types and on new and old lawns, so there’s no yard that won’t benefit from it.
Petra Tools Max Strength Nitrogen Fertilizer spreads far as well, and the 32oz can cover up to 12,800 square feet when used as a more diluted formula.
Otherwise, you can make a stronger formula that covers 6,400 square feet, so it’s even better value for money. If you’re looking to treat nitrogen deficient grass and need a serious boost, this option from Petra Tools is the only way to go.
Quick Facts
- Ingredients: Nitrogen
- Volume: 32oz
- Grass Types: All
- Usage: Spray
Pros
- Effective
- 10.000 sq ft usage
- Cost-efficient
- Slow and quick release
- Multipurpose
Cons
- Need to purchase a spray bottle separately
- Heavy on nitrogen
Alternative: Simple Lawn Solutions Lawn Food
Short summary
Simple Lawn Solutions Lawn Food is a one-stop shop for grass that’s in desperate need of a fix and it features a healthy 16-4-8 mix of nitrogen, phosphorus, and potassium.
The key ingredients in this fertilizer are the high density nutrients like seaweed and fish, allowing it to bring life back to dead lawns, add some vibrant green color to them, and strengthen them so they’re protected against the elements.
Lawn Food by Simple Lawn Solutions is a complete NPK formula with a 16-4-8 blend of the most important nutrients your lawn needs, plus extras like seaweed and fish.
This liquid fertilizer comes in a 32oz spray bottle that attaches directly to a hose and is suited to all grass types, with benefits like boosting growth, improving greenness, and strengthening roots, giving you an all-over regular treatment for your lawn.
People with sensitive grass types found this a little overpowering and not as effective on their lawns, but Simple Lawn Solutions recommends it for everything from Fescue to Centipede, so it depends on what you’re working with.
Some users also noted that the dead seafood smell turned them off from buying it again, but for the spectacular results you’ll see in just a couple of weeks and the easy application, most users found it worth putting up with the scent.
Simple Lawn Solutions is one of the most trusted names when it comes to grass fertilizers and it’s a US-owned company that people love to support.
This simple but effective 32oz bottle of fertilizer attaches easily to your hose to be sprayed on as needed, leaving you with no mess or hard work to get results, even if it does come out a little fast. For grass that’s in need of serious TLC, there’s nothing better than Lawn Food by Simple Lawn Solutions.
Quick Facts
- Ingredients: Seaweed, fish, nitrogen, phosphorous, potassium
- Volume: 32oz
- Grass Types: All
Usage: Spray bottle
Pros
- Powerful all-rounde
- Boosts grass
- Noticeable difference in three weeks.
- It goes on easily
- Effective
Cons
- Overpowering smell
- High strength formula
- Comes out fast
Alternative: ArgoThrive General Purpose Liquid Fertilizer
Short summary
ArgoThrive has created an organic alternative with their General Purpose Liquid Fertilizer and a multipurpose formula that’s good for not just grass, but vegetables, herbs, and greenhouses as well.
The one gallon bottle makes up to 62 gallons of fertilizer and it features ingredients like organic fish and grain.
With a 70% fast release and 30% slow release combination, you get instant results and long lasting ones that work in between applications, giving you the best of both worlds.
ArgoThrive’s General Purpose Liquid Fertilizer is an all-organic liquid fertilizer designed for your grass, lawns, greenhouses, herbs, and vegetables.
This liquid concentrate comes in a one gallon bottle and can be mixed with just 2oz of fertilizer and a gallon of water, meaning it’ll last for many applications, but doing this can create a bit of a mess.
However, considering the quality of the organic ingredients in the formula and how far it goes, it’s amazing value for money.
This fertilizer is designed to do it all, which can be a blessing, but also a curse. Those with yards that need a lot of focus on their grass will be better off choosing something made specifically for lawns, but otherwise, you’ll get amazing results from the organic formula and nutrients found within this concentrate.
People noticed better root growth and an ability to fight disease better, both in their lawns and plants, so it’s good for creating a hardier lawn.
The General Purpose Liquid Fertilizer contains 70% fast release and 30% slow release ingredients so you get results right away but something to tide your grass over until you apply it again.
With a 3-3-2 NPK formula and organic ingredients added, you can feel good about adding this to your lawn and other plants, and with the loved name of ArgoThrive behind it.
Quick Facts
- Ingredients: Organic fish, grain, nitrogen, phosphorous, potassium
- Volume: 1 gallon
- Grass Types: All
Usage: Liquid concentrate
Pros
- Organic ingredients
- General-use fertilizer
- Slow and release formula
- Strengthens grass
- Affordable
Cons
- Overpowering smell
- Messy container
Liquid Lawn Fertilizer FAQ
There are many types of fertilizers made specifically for grass, so the more you can learn about them the better equipped you’ll be to find the right one.
We’ve answered some FAQS about liquid fertilizers that’ll tell you everything you need to know to get the perfect match.
Is Liquid Fertilizer Good For Your Lawn?
Liquid fertilizers are the key to replenishing lost nutrients in your lawn and they can facilitate new, healthy growth of the grass.
It’s essential, though, that you choose a fertilizer made especially for lawns and grass with the right formula of nutrients.
When Should I Apply Liquid Fertilizer To My Lawn?
The best time to apply fertilizer is directly after mowing the lawn as new grass is preparing to grow.
However, you should always follow the directions provided by the liquid fertilizer manufacturer for the best application method and timing, as some products only need to be applied once a year and others more regularly.
Which Is Better Liquid Or Dry Lawn Fertilizer?
There’s no winner in the liquid versus dry lawn fertilizer debate, as it all depends on what you and your lawn need.
Dry fertilizers are better for slow release and liquid for immediate effect, so this is the biggest difference you’ll have to consider when comparing products.
Can I Apply Liquid Fertilizer To Wet Grass?
Yes, you can add liquid fertilizer to wet grass, and sometimes, it can be helpful in making the fertilizer work if it’s only been lightly wet.
The dampness of the grass can assist in dispersing it evenly so some people recommend applying it after a light rain or watering, but not after a heavy soak.
Liquid Gold for Your Lawn
A regular application of liquid lawn fertilizer can do wonders for your grass and it’s an easy and efficient way to keep it looking luscious.
Using our recommendations for the finest fertilizer on the market, you’ll have only the best of the best to choose from, and your lawn will thank you for it.
WINNER
Simple Lawn Solutions Growth Booster
- Volume: 32oz
- Grass Types: All
- Usage: Spray bottle
