








🌿 Feed your lawn like a pro—because your grass deserves the VIP treatment!
PetraMax Liquid Lawn Fertilizer is a premium 16-4-8 NPK concentrate designed for professional-grade lawn care. Its unique quick and slow-release nitrogen formula ensures rapid greening and sustained growth, while phosphorus and potassium promote strong roots and heat tolerance. Easy to apply and pet-safe, this 1-gallon solution covers up to 25,600 sq. ft., making it the go-to choice for millennials who demand a lush, envy-worthy lawn with minimal effort.







| ASIN | B095H5ZXYK |
| Best Sellers Rank | #202,650 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #3,380 in Garden Fertilizers |
| Brand | Petra |
| Customer Reviews | 4.1 4.1 out of 5 stars (339) |
| Item Form | Liquid |
| Item Weight | 9 pounds |
| Item model number | 16-4-8-1G2 |
| Liquid Volume | 1 Gallons |
| Manufacturer | Petra |
| Number of Items | 1 |
| Package Dimensions | 10.59 x 7.13 x 4.65 inches |
| Specific Uses For Product | Root Development |
| UPC | 850029123156 |
| Unit Count | 128.0 Fluid Ounces |
G**N
Lush green Florida lawn.
It Works out pretty good, it gave the lawn the look that I had envision, wonderful product.
R**B
Pleased with results!
Used on newly planted grass and existing lawn. New grass is coming in thick even with a lot of heat. Existing grass is greener then any of the neighbors which is amazing considering the heat and lack of rain. I may re-apply in 4-6 weeks depending on conditions. I think the healthier lawn is helping reduce weeds also. Still new to product but pleased so far!
K**R
Flake particulates in fertilizer
This product really works great; however, I typically need to filter the product because the flakes clog my hose end sprayer. There must be a solution for this issue. I have purchased different sizes of this product; however, the flakes are in all of the products. I'm thinking that the flake issue cannot be resolved, because it is part of the makeup of the product, similar to the flakes that appear in my stored tap water.
A**R
Great product
My yard looks better than ever before. I’m sold on this product If you’re struggling with lawn issues and tired of products that claim to work but don’t. Give this product a try you will not be disappointed Works best with a good granular Premergent or milorganite
A**R
Careful on appling too much.
First time I applied just enough and did great. Second time I applied too much and it burned the grass
P**K
Best support
This was my first time buying from PetraTool. I had a small issue with the product and needed to contact support. The service I received was extremely good; prompt, knowledgeable and very helpful. I will become a long term customer. I'm very happy to have found a company that treats their customers right!
U**N
Cannot be applied with any sprayer due to solid particles.
Cannot be applied with any sprayer due to solid particles. Even when you shake this solution well, there is a high volume of solid particles that block literally any spraying device, certainly any commercial spraying device, any hose sprayer -- even a watering can.
C**R
Too expensive
Tiny bottle ,looks like a toy...
M**I
No good
S**E
didn't really see a big change in the grass.
Trustpilot
1 week ago
3 weeks ago