Simple Lawn Solutions Maximum Green & Growth Review: Is 28-0-0 Worth It?

If your lawn has gone pale and washed out in the summer heat, or a brown strip along the driveway refuses to fill back in, the frustrating part is usually waiting weeks to find out whether anything you did actually worked. This liquid lawn food answers that question faster than most.

Simple Lawn Solutions Maximum Green & Growth is a 28-0-0 high-nitrogen liquid fertilizer in a 32-ounce bottle with a hose-end sprayer already built onto the top. Those three numbers on any fertilizer are nitrogen, phosphorus, and potassium in that order, so 28-0-0 means 28 percent nitrogen and nothing else. It is not a complete, do-everything feed. It does one job, and it goes straight at the nutrient that makes grass green.

I sprayed a bottle across my own lawn, followed the label, and watched how fast the color actually turned. The short version is that for a pale, hungry lawn this delivers visible results quickly, but there are real limits worth knowing before you buy, starting with the burn risk and the missing phosphorus and potassium.

What I Liked

Across a full bottle sprayed over a maintained lawn, a handful of things stood out about this high-nitrogen liquid lawn food.

A Color Change You Can See in About a Day

This is the part that genuinely surprised me. I sprayed in the evening, and by the next afternoon there was a real color difference across the grass, not a subtle one. Nitrogen is what builds chlorophyll, and chlorophyll is where a leaf gets its green from, so when a lawn is short on this one nutrient the grass pales. Like any plant, turf greens up quickly once that nutrition is restored, and the 28-0-0 goes straight at the deficiency instead of splitting the difference across three nutrients.

The full result took longer. The brown areas took closer to three weeks to fill in and turn a deep, plush green, and the color was still holding nine or ten days out, noticeably greener than everything else on the street. A lawn that stands out from the rest of the street is the kind of curb appeal a heavy-duty 3x5 American flag built to hold its color through the same summer sun only adds to.

A 70/30 Quick and Slow Release Nitrogen Blend

The nitrogen here is split 70 percent quick release and 30 percent slow release, which gives you two timelines out of one bottle. The quick-release half shows up almost immediately for that fast green-up, while the slow-release portion keeps feeding the lawn in the weeks afterward.

In practice that meant the initial color arrived within a day, then the feeding kept the lawn fed between applications rather than spiking and crashing. One bottle stretched to two applications a couple of weeks apart, which was more than I expected from a 32-ounce container. A lawn that stays green between feedings makes the yard a nicer place to sit and watch the birds, and a squirrel-proof feeder like the Sorflife keeps that seed going to finches and chickadees instead of the squirrels.

No Measuring or Mixing With the Attached Sprayer

There is no measuring and no mixing. The sprayer is already calibrated to meter out the right ratio as the water runs through it, so you thread it onto the garden hose, turn the dial on top, and walk. The dial is more useful than it sounds, because you can shut the flow off instantly to step over a flower bed or stop halfway.

The sprayer container is also one of the better parts of this product. It feels solid and holds up to repeat use. One thing worth checking first: the straw that runs down inside to pull the liquid up can come disconnected during shipping, and that is by far the most common reason people think their sprayer is broken. It takes two seconds to reseat.

One Bottle Covers Up to 3,200 Square Feet

A single bottle covers up to 3,200 square feet using the attached sprayer, which is roughly a 56-by-56-foot patch, so a decent front yard or a modest front and back. The number matters more than the usual coverage spec here, because you want to spread the bottle across the full area. Going light is fine. Going heavy burns the grass, so it is worth knowing your square footage before you start.

It Pushes Vertical Growth, Not Just Color

This does not only push color, it pushes growth. Within about three days I was mowing again on a lawn I had barely been touching. The formula works on any grass type too, warm season and cool season both, covering Bermuda, St. Augustine, Zoysia, buffalo, centipede, Bahia, fescue, ryegrass, and Kentucky bluegrass. You do not have to identify your grass before you buy, which removes a real barrier for a lot of homeowners. All that extra growth means climbing back on the mower sooner, so a dependable EGO Power+ 56V 5.0Ah battery is worth keeping charged to power a cordless mower through the added cuts.

What Needs Improvement

No lawn fertilizer is perfect, and this one has clear limits worth setting expectations around before you spray.

A Single Fixed Flow Rate Makes Over-Application Easy

The sprayer runs at one fixed rate. It is on or it is off, with no control over the concentration, and that is the main way people ruin this product. Going heavy burns the grass brown within a few days, and the reviews bear it out: one Amazon buyer reported their lawn went “from green to brown in just a few days,” and a Reddit user in r/lawncare said they “sprayed uneven, burned a decent amount of my lawn.” Some control over the flow would make it much harder to over-apply. A couple of smaller cautions go with it: the formula can leave your skin itchy, so avoid contact, and you should not combine it with another product in the same sprayer.

No Phosphorus or Potassium in the Formula

Because the analysis is 28-0-0, this is strictly a nitrogen source with no phosphorus and no potassium. If your soil is actually short on either of those, this will not touch it. A proper soil test is the only way to know, and if the test points to a phosphorus or potassium deficiency you need a balanced feed, not a nitrogen-only booster. This is a targeted tool, not a complete lawn food.

It Will Not Rescue a Scorched or Dying Lawn

This is not a rescue product. On grass that is already scorched and struggling, the recovery is slow and underwhelming compared to what it does on a lawn that is already healthy. It is far better at maintaining and boosting than at raising the dead. It also depends on water: you need to come back the next day for a plain watering, which is not optional, so you end up watering twice, once with the product and once without. Skip it entirely if you will not irrigate consistently, because several Reddit users reported little to no visible effect, including one who sprayed a full-strength test patch and saw no change after two weeks.

The Cost Per Application Adds Up on Big Lawns

At around $25 a bottle for up to 3,200 square feet, the cost per application works out to roughly $7 to $8 per 1,000 square feet, and liquids only feed for two to four weeks versus six to eight for a slow-release granular. On a large lawn that means buying bottles often. One r/lawncare regular did the math and found the hose-end bottle cost about $22 an application for their yard, against under $3 for the same raw ingredients bought in bulk. For a small or mid-size lawn the convenience is worth it; for a big one, the math turns against you fast.

How It Compares

High-nitrogen liquid feeds all promise a fast green-up, so the useful question is what you give up to get it. Here is how the 28-0-0 stacks up against the obvious alternatives.

vs Simple Lawn Solutions Advanced 16-4-8

This is the comparison that trips people up, because the brand sells both. The Advanced 16-4-8 is the balanced, all-purpose flagship, with phosphorus and potassium plus seaweed and humic acid, and it is the one most roundups name best overall. Bob Vila’s hands-on pick for the brand is the 16-4-8, not this one, so do not credit those test results here. The Maximum Green & Growth 28-0-0 is the narrower tool: reach for it when the lawn is pale and hungry and you want color in days, and reach for the 16-4-8 when you want one bottle that handles routine spring and summer feeding. The brand’s wider lineup even includes a Liquid Iron that relies on chelation to deliver deep color without pushing growth, a better match than any nitrogen feed if green is all you are after.

vs Scotts Turf Builder Liquid Lawn Food

Scotts Turf Builder Liquid Lawn Food runs a 29-0-3 analysis in a similar 32-ounce ready-to-spray bottle, and from the Scotts Miracle-Gro Company it carries the wider retail availability. The practical difference is coverage: Scotts rates its bottle for about 2,000 square feet against Simple Lawn Solutions’ 3,200, and it adds a little potassium the 28-0-0 lacks. If you want a touch of potassium and brand familiarity, Scotts is the pick; if you want more coverage per bottle for a pure nitrogen hit, Simple Lawn Solutions stretches further.

vs Granular Slow-Release Fertilizer

A bag of slow-release granular is the other way to feed a lawn, and it is the better base for a large yard. Granular feeds for six to eight weeks and costs far less per 1,000 square feet, but it is slower to green up and means spreading rather than spraying. The smartest setup uses both: granular as the steady base program, and this liquid as the fast shot of color on top when a section goes pale or someone scalps the lawn with a mower. As a spike over a granular program, the 28-0-0 earns its place.

Final Verdict

Simple Lawn Solutions Maximum Green & Growth does exactly what its 28-0-0 label promises: it delivers a fast, visible green-up on a lawn that is short on nitrogen, with an attached sprayer that takes the measuring and mixing out of the job.

I am giving it a 3.9 out of 5.

It loses ground for the single fixed flow rate that makes over-application and burn too easy, for the missing phosphorus and potassium that keep it from being a complete feed, and for a cost per application that adds up fast on a big lawn. But the speed of the color change is genuinely impressive, the quick-and-slow nitrogen blend keeps feeding for weeks, and it works on any grass type. The 4.2-star average across roughly 3,900 Amazon ratings lines up with what I saw. For anyone who likes to do it yourself, it is an easy lawn care staple to find, sold through Amazon and retailers like Home Depot.

Bottom line: If your grass is alive but tired, yellowing in the summer sun, and you want visible color fast, this is worth picking up and spraying across a measured area. If the lawn is scorched and dying, your soil needs phosphorus or potassium, or you will not water consistently, spend your money elsewhere.