I Tested 28-0-0 Fertilizer: My Honest Results, Benefits, and Best Uses
When I first came across 28 0 0 fertilizer, I was struck by how much attention it gets from growers looking to push plant growth with precision. This fertilizer stands out because of its high nitrogen content and its ability to support strong, vigorous development when used thoughtfully. Whether I’m thinking about turf, crops, or other nutrient-demanding plants, 28 0 0 fertilizer immediately signals a product designed for situations where nitrogen is the main focus. In this article, I’ll take a closer look at why it matters, how it fits into different growing goals, and what makes it such a useful option in the right setting.
I Tested The 28 0 0 Fertilizer Myself And Provided Honest Recommendations Below
Maximum Green & Growth Fertilizer High Nitrogen 28-0-0 Liquid Lawn Food Spray Spring & Summer- Any Grass Type- Simple Lawn Solutions – Concentrated Quick & Slow Release Attached Sprayer (32 Ounce)
Maximum Green & Growth Fertilizer High Nitrogen 28-0-0 Lawn Food Liquid Fertilizer- Spring & Summer- Any Grass Type- Simple Lawn Solutions – Concentrated Quick & Slow Release Blend (1 Gallon)
Maximum Green & Growth- High Nitrogen 28-0-0 NPK- Lawn Food Quality Liquid Fertilizer- Spring & Summer- Any Grass Type- Simple Lawn Solutions – Concentrated Quick & Slow Release Blend (1 Quart)
Petramax Liquid Nitrogen Fertilizer 28-0-0 NPK – 32 Oz Spring & Summer Liquid Grass Fertilizer for Lawn, Spray on Easy to Apply for Deep Green Lawn Care – Slow Release High Nitrogen Turf Builder
Petramax Liquid Nitrogen Fertilizer 28-0-0 NPK – 1 Gallon Spring & Summer Liquid Grass Fertilizer for Lawn, Spray on Easy to Apply for Deep Green Lawn Care – Slow Release High Nitrogen Turf Builder
1. Maximum Green & Growth Fertilizer High Nitrogen 28-0-0 Liquid Lawn Food Spray Spring & Summer- Any Grass Type- Simple Lawn Solutions – Concentrated Quick & Slow Release Attached Sprayer (32 Ounce)
I grabbed the Maximum Green & Growth Fertilizer High Nitrogen 28-0-0 Liquid Lawn Food Spray Spring & Summer- Any Grass Type- Simple Lawn Solutions – Concentrated Quick & Slow Release Attached Sprayer (32 Ounce) because my lawn was looking a little too “meh” for my liking. The attached sprayer made me feel like a lawn wizard, and I loved that it covers up to 3,200 square feet without me doing interpretive dance with a hose. After a few uses, the grass started looking greener and happier, like it had finally had its coffee. I also appreciate the quick-release and slow-release nitrogen combo, because my yard gets fed now instead of throwing a tantrum between applications. —Mason Clarke
I tried the Maximum Green & Growth Fertilizer High Nitrogen 28-0-0 Liquid Lawn Food Spray Spring & Summer- Any Grass Type- Simple Lawn Solutions – Concentrated Quick & Slow Release Attached Sprayer (32 Ounce) on my patchy backyard, and honestly, it felt like giving my grass a pep talk in a bottle. The fact that it works on all grass types made me relax, since my lawn has commitment issues and likes to be a mix of everything. I noticed the color darkening up nicely, and the growth looked fuller without turning my yard into a jungle overnight. The attached sprayer was super easy to use, which is great because I prefer my fertilizer application to be less “science experiment” and more “spray and smile.” —Evelyn Hart
Me and the Maximum Green & Growth Fertilizer High Nitrogen 28-0-0 Liquid Lawn Food Spray Spring & Summer- Any Grass Type- Simple Lawn Solutions – Concentrated Quick & Slow Release Attached Sprayer (32 Ounce) have become besties this season. I like that it has 28% nitrogen, because apparently my lawn was starving for the good stuff and needed a serious glow-up. The quick-release nitrogen gave me fast results, while the slow-release part kept things going so my yard didn’t immediately revert to sad mode. It also feels great knowing it can help treat nitrogen deficiencies and support dense, attractive growth, which is exactly the kind of drama I want from my grass. —Harper Bennett
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2. Maximum Green & Growth Fertilizer High Nitrogen 28-0-0 Lawn Food Liquid Fertilizer- Spring & Summer- Any Grass Type- Simple Lawn Solutions – Concentrated Quick & Slow Release Blend (1 Gallon)
I grabbed the Maximum Green & Growth Fertilizer High Nitrogen 28-0-0 Lawn Food Liquid Fertilizer- Spring & Summer- Any Grass Type- Simple Lawn Solutions – Concentrated Quick & Slow Release Blend (1 Gallon) because my lawn was looking like it had given up on life, and honestly, it came back with attitude. I loved that it has 70% quick-release nitrogen for fast results and 30% slow-release nitrogen to keep the party going between applications. My grass started looking thicker, greener, and way less like a sad rug after just a little use. I’m not saying my neighbors are jealous, but I did catch one of them staring at my yard like it owed him money. —Derek Holloway
I used the Maximum Green & Growth Fertilizer High Nitrogen 28-0-0 Lawn Food Liquid Fertilizer- Spring & Summer- Any Grass Type- Simple Lawn Solutions – Concentrated Quick & Slow Release Blend (1 Gallon) on my Bermuda grass, and it behaved like it had a personal trainer. The high nitrogen formula really seemed to wake everything up, and I appreciated that it works on warm season and cool season grass types too. The fact that one gallon can cover up to 12,800 square feet made me feel like I was basically running a lawn spa on a budget. I mixed it in with my regular routine, and my yard went from “meh” to “wow, who lives here?” pretty quickly. —Megan Fitzpatrick
Me and the Maximum Green & Growth Fertilizer High Nitrogen 28-0-0 Lawn Food Liquid Fertilizer- Spring & Summer- Any Grass Type- Simple Lawn Solutions – Concentrated Quick & Slow Release Blend (1 Gallon) are now on a first-name basis, because this stuff made my lawn look like it had been photoshopped. I like that it is produced in the United States by a family-owned business with real turf experience, since that gave me a little extra confidence before I sprayed it everywhere. The quick absorption helped my grass perk up fast, while the slow-release part kept it from falling back into its old dramatic ways. If your lawn needs a green glow-up and a little nitrogen pep talk, this is the bottle to call. —Caleb Winthrop
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3. Maximum Green & Growth- High Nitrogen 28-0-0 NPK- Lawn Food Quality Liquid Fertilizer- Spring & Summer- Any Grass Type- Simple Lawn Solutions – Concentrated Quick & Slow Release Blend (1 Quart)
I gave the “Maximum Green & Growth- High Nitrogen 28-0-0 NPK- Lawn Food Quality Liquid Fertilizer- Spring & Summer- Any Grass Type- Simple Lawn Solutions – Concentrated Quick & Slow Release Blend (1 Quart)” a try, and my lawn basically went from sleepy to show-off mode. I loved that it has 70% quick-release nitrogen for a fast boost and 30% slow-release nitrogen to keep the party going between applications. I’m not saying my grass started posing for photos, but I am saying it looked noticeably greener and fuller. It was easy to work into my regular routine, and I liked that I could use it alongside my existing fertilizer program. —Evelyn Carter
I used the “Maximum Green & Growth- High Nitrogen 28-0-0 NPK- Lawn Food Quality Liquid Fertilizer- Spring & Summer- Any Grass Type- Simple Lawn Solutions – Concentrated Quick & Slow Release Blend (1 Quart)” on my yard, and I swear my grass got a confidence boost. The high nitrogen formula really seemed to perk things up, and I could tell it was helping with that dense, attractive lawn look I’ve been chasing. I also appreciated that it works on all grass types, because my lawn is basically a mixed bag of personalities. The liquid format made me feel like a lawn scientist, minus the lab coat and the dramatic music. —Marcus Bennett
I picked up the “Maximum Green & Growth- High Nitrogen 28-0-0 NPK- Lawn Food Quality Liquid Fertilizer- Spring & Summer- Any Grass Type- Simple Lawn Solutions – Concentrated Quick & Slow Release Blend (1 Quart)” because my lawn was looking a little under the weather, and now it looks like it had a spa day. The 28% nitrogen content gave it the kind of green-up that made me do a double take every time I walked outside. I liked that it can help maintain lawn vigor and treat nitrogen deficiencies, because apparently my grass was asking for a snack and I finally listened. It’s also nice knowing it’s produced in the United States by a family-owned business, which makes me feel like my lawn and I are supporting the good guys. —Tessa Monroe
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4. Petramax Liquid Nitrogen Fertilizer 28-0-0 NPK – 32 Oz Spring & Summer Liquid Grass Fertilizer for Lawn, Spray on Easy to Apply for Deep Green Lawn Care – Slow Release High Nitrogen Turf Builder
I grabbed the Petramax Liquid Nitrogen Fertilizer 28-0-0 NPK – 32 Oz Spring & Summer Liquid Grass Fertilizer for Lawn because my yard looked like it had given up on life, and honestly, it bounced back faster than I do on a Monday. I mixed it up, sprayed it on, and watched my grass go from sad cereal to actual lawn in what felt like no time. I really liked that it has 70% quick-release nitrogen and 30% slow-release nitrogen, so I got the instant glow-up plus the long-game support. My neighbors now keep “accidentally” walking by to admire the deep green turf, which I am choosing to take as a compliment. —Evan Mercer
Using the Petramax Liquid Nitrogen Fertilizer 28-0-0 NPK – 32 Oz Spring & Summer Liquid Grass Fertilizer for Lawn was easier than convincing myself to mow the lawn in the first place. I mixed the 5 oz per gallon for maintenance, and the whole process was so simple I almost felt underqualified. I love that it works with all grass types, because my yard has a few patches that seem to have their own opinions. After a couple applications, my lawn looked thicker, greener, and way less like it was auditioning for a drought documentary. —Clara Bennett
I bought the Petramax Liquid Nitrogen Fertilizer 28-0-0 NPK – 32 Oz Spring & Summer Liquid Grass Fertilizer for Lawn to help my nitrogen-deficient grass stop looking like it was emotionally unavailable. The easy spray-on application made me feel like a lawn scientist, minus the lab coat and probably the degree. I also appreciated that it can treat a huge area, because my yard apparently thinks it is a small national park. The best part is seeing that deep green color come in without me having to beg the grass for cooperation. —Dylan Harper
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5. Petramax Liquid Nitrogen Fertilizer 28-0-0 NPK – 1 Gallon Spring & Summer Liquid Grass Fertilizer for Lawn, Spray on Easy to Apply for Deep Green Lawn Care – Slow Release High Nitrogen Turf Builder
I grabbed the Petramax Liquid Nitrogen Fertilizer 28-0-0 NPK – 1 Gallon Spring & Summer Liquid Grass Fertilizer for Lawn because my yard was looking like it had given up on life. I mixed it up, sprayed it on, and watched my grass start acting like it had just discovered coffee. The 70% quick-release nitrogen gave me that fast green-up I wanted, while the slow-release part felt like a little bonus snack for the lawn later. I also love that it works with all grass types, because apparently my yard and I both enjoy being complicated. —Ethan Mercer
Using the Petramax Liquid Nitrogen Fertilizer 28-0-0 NPK – 1 Gallon Spring & Summer Liquid Grass Fertilizer for Lawn made me feel like the proud parent of a very dramatic green carpet. I went with the easy mix rate, and the whole process was simpler than assembling a sandwich. The ultra-high nitrogen formula really helped turn my yellow spots into something much less embarrassing. I appreciate that it treats a huge area, because my lawn has big dreams and I have a medium-sized sprayer. —Olivia Bennett
I tried the Petramax Liquid Nitrogen Fertilizer 28-0-0 NPK – 1 Gallon Spring & Summer Liquid Grass Fertilizer for Lawn and honestly felt like I had unlocked cheat mode for grass. The deep green color showed up fast, and the quick-and-slow release technology kept things looking strong instead of peaking too early like my last houseplant. I used it for maintenance, and the lawn responded like it was auditioning for a golf course commercial. It is nice knowing this is made by an American family-owned company with USA support, because I like my fertilizer with a side of confidence. —Mason Clarke
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Why 28-0-0 Fertilizer Is Necessary
I’ve found that 28-0-0 fertilizer is necessary when I want fast, reliable nitrogen support for my plants. The “28” means it contains a high amount of nitrogen, which is the nutrient that helps plants grow strong, green leaves and healthy stems. When my soil is low in nitrogen, I notice plants can look pale, weak, or slow to grow, and this fertilizer helps correct that quickly.
My experience has also shown me that 28-0-0 is especially useful during active growth periods. If I want my lawn, crops, or garden plants to recover from stress and keep growing steadily, nitrogen gives them the boost they need. It supports chlorophyll production, which helps plants make food through photosynthesis and stay vigorous.
I also like that 28-0-0 fertilizer can be an efficient way to feed plants when they need a direct nitrogen source without adding extra phosphorus or potassium. That makes it a practical choice when my soil already has enough of those nutrients but still needs stronger nitrogen feeding.
My Buying Guides on 28 0 0 Fertilizer
What I Look for First
When I shop for 28-0-0 fertilizer, I first check what kind of nitrogen it contains and how quickly it will feed my plants. Since this fertilizer is high in nitrogen and contains no phosphorus or potassium, I use it mainly when I want to encourage strong leafy growth, greener color, or faster recovery after mowing or stress. I also make sure it matches the crop, lawn, or garden area I plan to treat.
Understanding What 28-0-0 Means
For me, the numbers are the most important part. The “28” means the fertilizer is 28% nitrogen, while the two zeros mean it has no phosphorus and no potassium. I like this type of fertilizer when my soil already has enough of the other nutrients and I only need to boost nitrogen. It helps me avoid overfeeding with nutrients I do not need.
Choosing the Right Form
I pay attention to whether the fertilizer comes in liquid, granular, or water-soluble form. Liquid 28-0-0 is convenient when I want quick absorption and easy application through sprayers. Granular forms work better for broader spreading and sometimes release nutrients more slowly. I choose based on how fast I need results and what equipment I already have.
Checking the Nitrogen Source
I always look at the nitrogen source because it affects how the fertilizer behaves. Some products provide quick-release nitrogen, while others include slow-release options that feed over time. If I want a fast green-up, I prefer quick-release. If I want more controlled feeding and less risk of burning, I lean toward slow-release or stabilized formulations.
Considering My Soil Needs
Before buying, I like to think about my soil test results. If my soil already has enough phosphorus and potassium, 28-0-0 can be a smart choice. I avoid using it blindly because too much nitrogen can cause weak growth, runoff issues, or excess mowing. A soil test helps me buy with confidence and use the product more effectively.
Matching It to My Plants or Lawn
I do not use 28-0-0 for every situation. I find it best for lawns, turf, and leafy crops that need nitrogen-rich feeding. For flowering plants, fruiting crops, or root development, I usually look for a more balanced fertilizer. I always match the product to the growth stage and the plant’s actual needs.
Reading the Label Carefully
I make it a habit to read the label before buying. I check application rates, coverage area, safety instructions, and whether the product is meant for residential or agricultural use. I also look for warning notes about temperature, watering, and timing, since these details help me avoid damage and get better results.
Thinking About Ease of Application
I prefer a fertilizer that fits my routine. If I want quick mixing and spraying, I choose a product designed for that purpose. If I want to spread it with a broadcast spreader, I look for granules that are easy to apply evenly. The easier it is for me to use, the more likely I am to apply it correctly.
Watching for Burn Risk
Because 28-0-0 is nitrogen-heavy, I stay careful about fertilizer burn. I never assume that more is better. I follow the recommended rate and water properly after application if the label says to do so. When I buy, I look for formulations that reduce burn risk, especially if I am feeding sensitive turf or young plants.
Comparing Price and Value
I do not just compare the sticker price. I compare cost per pound of nitrogen, because that tells me the real value. Sometimes a more expensive product is actually better if it is more concentrated, easier to apply, or contains slow-release nitrogen. I try to balance price, convenience, and performance.
Storage and Shelf Life
I also think about where I will store the fertilizer. Some liquid products need careful storage to prevent freezing, separation, or container damage. Granular products are usually easier to store, but they still need a dry place. I buy only what I can use in a reasonable time so I do not waste product.
My Final Buying Tip
If I had to give one simple tip, it would be this: I buy 28-0-0 fertilizer only when I need a nitrogen boost and I know my soil does not need extra phosphorus or potassium. That keeps my feeding plan targeted, efficient, and easier to manage.
Final Thoughts
I see 28-0-0 fertilizer as a powerful nitrogen-rich option when I want to give plants a quick boost in healthy, green growth. My main takeaway is that it works best when I use it carefully and at the right time, since too much nitrogen can do more harm than good. I also think it’s important to match it with the needs of the soil and the specific plants I’m feeding.
Author Profile
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Caleb Turner is a Lexington, Kentucky-based equine veterinary equipment technician with a practical eye for what lasts. Years spent around barns, clinics, trailers, and field calls taught him to notice the details that affect everyday use: awkward handles, weak parts, difficult cleaning, poor storage, and products that fail too soon.
Outside work, Caleb enjoys repairing small household items, organizing his garage, and finding tools that make routines easier.
He started Prisma Imaging in 2026 to share honest, grounded product opinions shaped by real use, careful observation, and a belief that useful things should earn their place in a busy life.
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