Every spring, homeowners face the same dilemma: walk into a big-box store and guess which brightly colored bag will actually turn their patchy yard into a healthy lawn without burning a hole in their wallet. The fertilizer aisle is packed with numbers, ratios, and claims — and picking wrong means wasting both money and effort.
I’m Mohammad Maruf — the founder and writer behind Gardening Beyond. I spend my time dissecting granular breakdowns, comparing NPK ratios, studying application coverage data, and cross-referencing thousands of aggregated owner experiences to figure out which lawn fertilizers deliver genuine results at a fair price.
This guide cuts through the marketing fluff to compare two liquid concentrates, two balanced granular formulas, and a weed-and-feed hybrid so you can confidently choose the price on lawn fertilizer that matches your lawn’s actual needs.
How To Choose The Best Price On Lawn Fertilizer
Choosing a lawn fertilizer isn’t about picking the cheapest bag — it’s about matching the nutrient profile to what your soil actually needs. A high-nitrogen formula is great for greening up a tired lawn in spring, but a balanced 10-10-10 works better for flower beds and vegetable gardens. Start with a simple soil test to see which NPK element your ground is lacking, then pick a product that addresses that specific gap.
Understand the NPK Ratio
Every bag or bottle displays three numbers — nitrogen, phosphorus, and potassium. Nitrogen drives leaf growth and color, phosphorus supports root development and blooms, and potassium boosts overall plant health and stress resistance. A 16-16-16 is a balanced all-purpose choice, while a 28-0-0 is pure nitrogen for a targeted green-up. For established lawns that don’t need extra phosphorus, high-nitrogen or lower-phosphorus options are safer to avoid runoff issues.
Liquid vs. Granular: Which Format Fits Your Routine?
Liquid concentrates like the PetraMax 16-4-8 and 28-0-0 offer fast absorption and precise coverage using a hose-end sprayer. Granular products like the Supply Solutions 16-16-16 and GreenView 10-10-10 are spread with a rotary or drop spreader and release nutrients more slowly over several weeks. Liquids work well for a quick mid-season boost; granules provide steady feeding with fewer applications. If you have a large lawn, granules often give better coverage per dollar, but liquids offer more control over application density.
Weed Control Integration
Products like the Scotts Turf Builder Weed and Feed5 combine fertilizer with selective herbicides that target broadleaf weeds like dandelion and clover. These save time but require precise timing — apply when weeds are actively growing and temperatures stay between 60°F and 90°F. They also restrict which grass types you can use them on, so check the label if you have St. Augustine or bentgrass. For focused feeding without herbicides, a straight fertilizer gives you more flexibility.
Quick Comparison
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| Model | Category | Best For | Key Spec | Amazon |
|---|---|---|---|---|
| Supply Solutions 16-16-16 | Granular | All-purpose garden feeding | NPK 16-16-16 Balanced | Amazon |
| Scotts Turf Builder Weed & Feed5 | Granular Weed + Feed | Lawn weed control + green-up | Covers 4,000 sq. ft. | Amazon |
| PetraMax 16-4-8 Liquid | Liquid | Quick green-up & root growth | NPK 16-4-8 + Humates | Amazon |
| GreenView 10-10-10 | Granular | Vegetables, shrubs, trees | Covers 10,000 sq. ft. | Amazon |
| PetraMax 28-0-0 Nitrogen | Liquid | Deep green nitrogen boost | 28-0-0 Quick + Slow Release | Amazon |
In‑Depth Reviews
1. Supply Solutions 16-16-16 Complete All Purpose Granular Fertilizer
The Supply Solutions 16-16-16 is a triple-equal-ratio granular fertilizer that gives your lawn, vegetables, and ornamentals the same macronutrient foundation. With sixteen percent each of nitrogen, phosphorus, and potassium, it supports leafy growth, strong root structure, and bloom production in a single application. The five-pound bag provides a solid entry point for small-to-medium gardens without committing to a huge volume.
Users report visible improvement in tomatoes and peppers within five days, with reviews highlighting healthier foliage and more robust flowering. The granules spread evenly by hand or with a small spreader, and the new blue packaging with a grass design makes storage clear. Since it’s a balanced formula, it works across the entire garden rather than being limited to lawn-only use.
This is the smartest starting point for anyone who wants one bag that covers vegetables, lawn patches, and flower beds. The 16-16-16 ratio won’t push excessive nitrogen into the soil, making it safe for repeated use throughout the growing season without overwhelming your plants.
What works
- Triple-16 ratio fuels all growth stages at once
- Fast visible greening on vegetables within days
- Versatile across lawn, garden, and ornamentals
What doesn’t
- Five-pound bag covers limited area compared to bulk options
- No slow-release coating — may require more frequent application
2. Scotts Turf Builder Weed and Feed5
Scotts Turf Builder Weed & Feed5 tackles two jobs at once: it feeds the grass while killing over 50 listed broadleaf weeds including dandelion, clover, and plantain. The 11.32-pound bag covers up to 4,000 square feet and works best when applied to a wet lawn with daytime temperatures between 60°F and 90°F. It is designed for Bahiagrass, Bermudagrass, Bluegrass, Centipedegrass, Fescue, Ryegrass, and Zoysiagrass, but should not be used on St. Augustinegrass or Dichondra.
Customer reviews consistently mention that the lawn thickens noticeably after two applications, with weeds thinning out while the grass turns greener. A key tip from experienced users is to water the lawn before applying, then leave it dry for two to three days afterward to avoid burning. The granules also work well with Scotts spreaders for uniform distribution, though some users noted that a hose-attached liquid weed killer was more effective on stubborn patches.
This product saves a full extra pass across the yard when weeds are the main problem. It is not a pure fertilizer — the active herbicide means you must follow the temperature and grass-type restrictions — but it delivers a time-saving two-in-one approach for the average suburban lawn.
What works
- Kills common broadleaf weeds while feeding grass simultaneously
- Easy granular application with a standard spreader
- Thickens lawn to crowd out future weeds over multiple treatments
What doesn’t
- Not compatible with St. Augustine, Dichondra, or bentgrass lawns
- Requires strict temperature and moisture timing for best results
3. PetraMax 16-4-8 Liquid Lawn Fertilizer
PetraMax 16-4-8 delivers a targeted 16 percent nitrogen with lower phosphorus (4 percent) and moderate potassium (8 percent), making it ideal for established lawns that need a color boost without excess phosphorus runoff. The liquid concentrate mixes at five ounces per gallon for maintenance or ten ounces per gallon for deficient turf, and a single 32-ounce bottle treats up to 25,600 square feet at the maintenance rate. It includes high-purity humates to encourage deep root development alongside the NPK boost.
Owner feedback highlights the easy mixing process with a hose-end sprayer, with several users noting the lawn turned a rich green within days of the first application. The formula uses both quick-release and slow-release nitrogen, so you get an immediate color change plus sustained feeding for two weeks between applications. One reviewer mentioned no improvement after following instructions, but the company issued a full refund, demonstrating solid customer support.
For homeowners with larger lawns who prefer spraying over spreading granules, this liquid option offers precise coverage and rapid results. The lower phosphorus content also makes it a good choice for areas where local regulations restrict phosphorus use on established turf.
What works
- High coverage — up to 25,600 sq. ft. per bottle at maintenance rate
- Quick-release + slow-release nitrogen for fast and lasting green
- Humates support deeper root growth for drought tolerance
What doesn’t
- Some users saw no improvement despite following mixing directions
- Requires a sprayer for application, adding equipment cost
4. GreenView Multi-Purpose Fertilizer 10-10-10
GreenView 10-10-10 is a classic balanced granular fertilizer with equal parts nitrogen, phosphorus, and potassium in a 33-pound bag that covers up to 10,000 square feet. The lower 10 percent concentration per nutrient makes it gentler than the 16-16-16 options, reducing the risk of burning plants if you apply a bit too heavily. It is labeled for use on vegetables, flowers, trees, shrubs, and ornamental gardens, giving you a true single-bag solution for the entire landscape.
Long-term users report consistent results across multiple seasons, with one reviewer using it on trees, hostas, vegetables, and perennials throughout the Midwest growing season. Another user in Hawaii found it a cheaper alternative to the local 16-16-16, noting the granules stayed well-formed and didn’t clump. The slow-release formulation means nutrients are available over several weeks, reducing the application frequency compared to quick-release products.
This is the best value for homeowners who want one large bag that feeds every corner of the yard. The 10-10-10 ratio is safe for general use, and the coverage area covers an average suburban lot with a single purchase.
What works
- 33 pounds covers 10,000 sq. ft. — excellent value per square foot
- Slow-release formulation minimizes burn risk and application frequency
- Versatile enough for lawn, garden, trees, and ornamentals
What doesn’t
- Lower 10-10-10 concentration may require more product for deficient soil
- Heavy bag is more cumbersome to carry and store than liquids
5. PetraMax 28-0-0 Liquid Nitrogen Fertilizer
PetraMax 28-0-0 is a high-nitrogen liquid concentrate designed specifically to turn yellow or pale lawns deep green fast. With zero phosphorus and zero potassium, it delivers a pure nitrogen punch — 70 percent quick-release for an immediate color change and 30 percent slow-release to sustain the feed between applications. The 32-ounce bottle treats up to 12,800 square feet at the maintenance rate or 6,400 square feet for nitrogen-deficient lawns.
Repeat buyers consistently report visible greening within days. One user applied it to a lawn with three different grass types and noted all of them responded with a deeper, more uniform color. The recommended ratio is five ounces per gallon for maintenance and ten ounces per gallon for correction, and the company recommends using a PetraTools sprayer for even coverage. A reviewer who was initially skeptical praised the product after seeing results in a tough patch of lawn with heavy shade.
This is the right choice when your lawn looks tired and pale but you don’t need extra phosphorus or potassium. It works on warm- and cold-season grass types alike and is safe for both new and established turf when mixed correctly.
What works
- 28-0-0 ratio delivers the highest nitrogen concentration in this list
- 70% quick-release nitrogen provides visible greening within days
- Works on all grass types including warm- and cold-season varieties
What doesn’t
- Zero phosphorus and zero potassium — only addresses nitrogen deficiency
- Requires careful mixing to avoid burning nitrogen-sensitive grasses
Hardware & Specs Guide
NPK Ratio
The three numbers represent nitrogen, phosphorus, and potassium by percentage. A 16-16-16 ratio provides equal parts of each, suitable for general feeding. A 28-0-0 ratio is pure nitrogen for targeting green-up without adding phosphorus or potassium. For established lawns that don’t need bloom support, lower phosphorus options like 16-4-8 reduce runoff risk.
Coverage Area
Coverage determines how much ground a single bag or bottle can treat. The GreenView 10-10-10 covers the most at 10,000 square feet per 33-pound bag, while the Supply Solutions 16-16-16 is more compact at 2,500 square feet for 5 pounds. Liquid concentrates like PetraMax 16-4-8 offer maintenance coverage up to 25,600 square feet per bottle, making them ideal for larger lawns.
Release Technology
Quick-release nitrogen delivers immediate color change but fades faster. Slow-release technology provides a steady nutrient supply over weeks, reducing application frequency. Products like the PetraMax 28-0-0 combine both — 70 percent quick-release for instant results and 30 percent slow-release for ongoing feeding. Granular products like the GreenView 10-10-10 rely on slow-release coatings for extended feeding.
Form Factor: Liquid vs Granular
Liquid concentrates require a hose-end or pump sprayer but allow precise control over application density and even coverage on slopes. Granular products need a rotary or drop spreader and are better suited for large flat lawns where even distribution is straightforward. Granules also tend to have slower release profiles, while liquids offer faster plant uptake.
FAQ
What does the NPK ratio 16-16-16 mean for my lawn?
Can I use a weed-and-feed product like Scotts Turf Builder Weed & Feed5 on St. Augustine grass?
How often should I apply liquid fertilizer like the PetraMax 16-4-8?
Will the high-nitrogen 28-0-0 fertilizer burn my lawn if I use too much?
Is the GreenView 10-10-10 safe for vegetable gardens?
Final Thoughts: The Verdict
For most gardeners looking for the best price on lawn fertilizer, the winner is the Supply Solutions 16-16-16 because its balanced triple-16 ratio handles lawn, vegetables, and ornamentals with a single purchase. If you want deep green color fast without adding phosphorus, grab the PetraMax 28-0-0. And for weed control during feeding, nothing beats the Scotts Turf Builder Weed & Feed5 on compatible grass types.