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A lush, green lawn will help to add vitality and appeal to your home. But keeping your lawn green is not easy. If you are looking for a convenient, quick and effective solution to keep your lawn beautiful, liquid fertiliser is for you.
Liquid fertiliser has the ability to penetrate quickly, helping to provide nutrients quickly to the grassroots and keep them lush. However, among the tens of thousands of products on the market today, which is the best liquid lawn fertiliser? Let’s explore the 10 top picks liquid fertiliser for lawns recommended by experts below!
Top 10 Best Liquid Lawn Fertilisers of 2025
FloralMean experts have carefully used, analyzed, and evaluated the 10 best liquid fertilisers for lawns. Here are detailed reviews and rankings of each different liquid fertiliser.
Best for Faster Grass Growth
Simple Lawn Solutions Advanced 16-4-8 Balanced NPK
Photo credit: Amazon
Product Information
- Brand: Simple Lawn Solutions
- Item Weight: 32 Ounces
- Coverage: Full
- Liquid Volume: 946 Milliliters
- Contains high quality feed ingredients
- Versatile for use on a wide range of grasses
- Contains seaweed and fish
- Easy to use
- High price
Why We Love It
If you are looking for a liquid fertiliser to stimulate faster grass growth, Simple Lawn Solutions Advanced 16-4-8 Balanced NPK is for you. With a high nitrogen content, the fertiliser has the ability to promote strong grass growth. The fertiliser also has balanced potassium and phosphate levels to increase the tolerance of grass and improve the soil. Simple Lawn Solutions fertiliser also contains seaweed and fish emulsion to provide rich organic matter to the soil, helping grass absorb nutrients better.
Best for Easy Application with Large Coverage
Scotts Liquid Green Max Lawn Food
Photo credit: Amazon
Product Information
- Brand: Scotts
- Item Weight: 3.1 Pounds
- Coverage: 2000
- Liquid Volume: 32 Fluid Ounces
- The dual action formula adds extra iron
- This applies to any grass
- Large nozzle coverage
- Easy to use
- Some reviews report grass burn
Why We Love It
The next name on the list of best liquid lawn fertilisers is Scotts Liquid Green Max Lawn Food. This product will help “green” your lawn. Scotts’ liquid fertiliser also impresses with its dual-action formula, which helps provide additional color to make the green color of the grass clearer and fresher. In addition, this liquid fertiliser also has a wide nozzle coverage of up to 2,000 square feet, helping you easily water the entire garden without spending much time.
Best for Balanced Nutrition for All Grasses
EZ-GRO 20-20-20 fertiliser
Photo credit: Amazon
Product Information
- Brand: EZ-gro WE MAKE GROWING EASY
- Item Weight: 32 Ounces
- Coverage: All-purpose
- Liquid Volume: 1 Quarts
- Balanced nutrition for all grasses
- Promotes root and leaf growth
- Fast-acting liquid formula
- Perfect for all types of gardens
- NPK ratio 20-20-20 may not be suitable for all growth stages
Why We Love It
You can also refer to EZ-GRO 20-20-20 fertiliser to improve your lawn. With balanced nutrients, the fertiliser will help your grass grow comprehensively. Whether you are growing flowers, herbs, vegetables or even a lush lawn, this balanced mixture ensures that your plants grow stronger, healthier and more lush. EZ-GRO 20-20-20 fertiliser will help the roots and leaves grow significantly, ensuring a green and strong grass from the root.
Best Organic Fertilizer with Natural Ingredients
Organic Kelp fertiliser by GS Plant Foods
Photo credit: Amazon
Product Information
- Brand: GS Plant Foods
- Item Weight: 128 Ounces
- Coverage: Medium
- Liquid Volume: 3.6 Liters
- Contains the finest Ascophyllum Nodosum seaweed
- Comprehensive improvement
- Natural ingredient extracts
- No harmful substances
- Suitable for all stages of development
- Average coverage
Why We Love It
Organic Kelp fertiliser by GS Plant Foods is one of the best liquid lawn fertilisers that you should not miss. The fertiliser is made from natural seaweed extracts, optimizing soil conditions for greater root mass and improved nutrient absorption. The main ingredient of the fertiliser is the best Ascophyllum Nodosum seaweed, which helps improve the resistance of grass. This seaweed also helps increase chlorophyll, making the green color of the grass darker and more beautiful.
Best Eco-Friendly Fertilizer Safe for Pets and Humans
American Hydro Systems GrassSoGreen
Photo credit: Amazon
Product Information
- Brand: Pro Products
- Item Weight: 4.6 ounces
- Coverage: Full
- Liquid Volume: 1 Gallon
- Environmentally friendly
- Safe for humans and pets
- It can be combined with the company’s automatic spray system
- Quickly absorbed and non-spilling
- High price
Why We Love It
If you are looking for a liquid fertiliser specifically for lawns, American Hydro Systems GrassSoGreen is the ideal suggestion. With 19% nitrogen, this fertiliser helps the grass grow stronger and has a darker green color. You also do not need to worry when using fertiliser because it is a friendly formula, does not contain toxic substances, and is safe for humans or pets. You can combine the fertiliser with the brand’s American Hydro and GreenFeeder automatic spraying systems to optimize the lawn spraying process.
Best for Quick Boost and Fast Coverage
Persist Green Bull
Photo credit: Amazon
Product Information
- Brand: PERSIST
- Item Weight: 32 Ounces
- Coverage: 2000
- Liquid Volume: 32 Fluid Ounces
- Coverage up to 2000 square feet
- Fast spraying in just 5 minutes
- Contains a blend of nitrogen, iron and acid to improve grass growth
- Simple, easy to use
- Some reviews say the capacity is a bit small compared to the tank
Why We Love It
Persist Green Bull is a concentrated liquid fertiliser for turf that needs a boost. With its high nitrogen content, the fertiliser helps accelerate the turf’s growth and reinforces the grass’s green color. This product also impresses with its large and fast coverage, taking only about 5 minutes to spray all the grass in 2000 square feet. You can combine the fertiliser with Persist Biochar for increased effectiveness. Persist Green Bull is suitable for garden soil or as a lawn fertiliser for lawns or spring lawn fertiliser.
True Organic Liquid Lawn fertiliser
Photo credit: Amazon
Product Information
- iBrand: True Organic
- Item Weight: 3.52 ounces
- Coverage: Full
- Liquid Volume: 32 Fluid Ounces
- 100% Organic & Natural Ingredients
- Premium Organic Content
- Higher Farm Standards
- Wide Selection
- Some bad reviews about the scent
Why We Love It
True Organic Liquid Lawn fertiliser is also on the list of best liquid lawn fertilisers thanks to its premium ingredients. The fertiliser contains 32 oz CDFA and is OMRI-listed for organic gardening NPK 4-0-1. This product is 100% natural, ensuring safety for humans and pets. A 32 fl oz bottle of the brand can cover up to 2,000 sq ft, so it is a significant cost savings. Thanks to its highly organic ingredients, True Organic Liquid Lawn fertiliser is a top choice for both farms and homes.
Best for Balanced Nutrition with Slow Release Nitrogen
PetraTools Liquid fertiliser
Photo credit: Amazon
Product Information
- Brand: Petra
- Item Weight: 32 Ounces
- Coverage: 1600 Sq. Ft
- Liquid Volume: 32 Fluid Ounces
- Balanced Nutrition
- Supports All Grasses’ Full Growth
- Special Fast and Slow Release Nitrogen Formula
- Easy to Use
- 100% Satisfaction
- Average coverage
Why We Love It
PetraTools Liquid fertilizer will help your lawn grow fully and vigorously. With a 16-4-8 composition, the fertiliser provides a balanced nutritional content, helping to improve and support all types of grass. A blend of nitrogen, phosphorus, and potassium provides maximum stimulation for grass growth. In addition, high-purity humates and additional potassium promote deep-root development.
In addition, a special feature of PetraTools Liquid fertiliser is that it is equipped with a fast & slow-release nitrogen formula. Fast-release nitrogen for rapid grass growth, while slow-release nitrogen ensures continuous growth between applications. This fertiliser formula is also friendly and safe for pets.
Best for Dense Green Lawns with Improved Nutrient Absorption
Green Envy Liquid Lawn Food
Photo credit: Amazon
Product Information
- Brand: GS Plant Foods
- Item Weight: 128 Ounces
- Coverage: Medium
- Liquid Volume: Medium
- Special concentrated liquid fertiliser formula
- Incorporates humic acid for better nutrient absorption
- Suitable for all types of grass
- Easy to use
- Some bad reviews on scent and value for money
Why We Love It
Green Envy Liquid Lawn Food – another high-quality product from GS Plant Foods. Like other products from GS Plant Foods, this fertilizer is highly appreciated for its ability to make grass green and dense. GS Plant Foods Green Envy is a premium grass product specially formulated for the demanding needs of all types of grass. It is also combined with humic acid to promote the grass’s ability to absorb nutrients.
Green Envy from GS Plant Foods is also loved for its versatility, can be used for many different types of grass and can be combined with other fertilizers. The packaging has clear mixing ratio instructions and you also do not need to water after fertilizing, saving time effectively.
Best for Iron Deficiency and Greening Up Yellow Lawns
LawnStar Liquid Iron (32 OZ) for Plants
Photo credit: Amazon
Product Information
- Brand: LawnStar
- Item Weight: 2.3 Pounds
- Coverage: Full
- Liquid Volume: 32 Fluid Ounces
- Good soil alkalinity reduction ability
- Provides iron quickly and effectively
- Overcome yellow leaves, making the grass greener
- Enhance root health
- Highly stable formula
- Multi-purpose for all types of grass
- Easy to use
- The price is a bit high compared to some products
Why We Love It
Don’t be too quick to overlook LawnStar Liquid Iron (32 OZ) for Plants. This is one of the best liquid lawn fertilisers that experts love. LawnStar Liquid Iron is highly regarded for its ability to neutralize alkalinity in the soil. Even if your soil has a pH of up to 9.5, the fertilizer still works stably, providing iron quickly to neutralize and improve soil quality.
LawnStar Liquid Iron helps overcome yellow grass by supporting increased chlorophyll, helping your lawn to be green again. This is an ideal liquid fertilizer for any lawn, providing nutrients to enhance root health and promote strong grass growth. The formula of the fertilizer is guaranteed to be stable for quick absorption by the grass and has a long-lasting effect.
How to Choose the Best Liquid Lawn Fertilisers?
We’ve shared 10 expert-recommended liquid lawn fertilisers. However, not all of them are right for your lawn. So, here’s how to choose the best liquid fertiliser for your lawn.
Grass Type
Grass type is one of the most important factors to consider when choosing a liquid fertiliser. There are two main types of grasses commonly found on lawns in the United States: warm-season grasses and cool-season grasses.
Cool-season grasses are found in cooler climates, such as foxtail, Kentucky, bentgrass, and ryegrass. You should fertilize them in late summer, when the weather starts to cool. Warm-season grasses, on the other hand, thrive in warmer climates, such as zoysia, St. Augustine, Bermuda, and buffalo. Likewise, you should fertilize them when the weather starts to warm up.
Nutrients
To choose the best liquid lawn fertiliser, you should determine the nutrients your lawn needs through soil testing. Check the soil bacteria, pH, acidity level present, and the nutrients your soil needs. You can dig up a small amount of soil and send it for regular soil testing to determine the exact nutrients that are lacking and choose the right fertiliser.
N-P-K numbers
Every fertiliser will have NPK numbers on the back of the package, and these numbers will tell you what the fertiliser is made of. For example, a bag of liquid fertiliser labeled 30-10-20 means it is 30% nitrogen, 10% phosphate, and 20% potassium. You need to match the ratio of nutrients to your grass.
If you want your grass to grow quickly, you will want to choose a higher nitrogen ratio. If you are just planting seeds and need to improve the soil, a higher phosphorus ratio is more appropriate. And if you want your grass to develop resistance, you will want to use a higher potassium ratio.
Wrap Up
We hope our reviews will help you better understand each type of fertiliser and choose the best liquid lawn fertiliser. However, the higher the rating of a fertiliser, the better it is for your lawn. To choose the best liquid fertiliser, you should consider factors such as the type of grass, the nutrients the grass needs, and the appropriate N-P-K ratio. And if you have a great liquid lawn fertiliser that is not on the list, please share it with FloralMean and everyone!
