A 19-0-6 fertilizer delivers a specific nitrogen-to-potassium ratio designed for lawns needing a strong green-up without pushing excessive leafy growth that invites disease. Unlike balanced fertilizers, the zero-phosphorus formulation avoids contributing to runoff in established lawns where phosphorus levels are already sufficient. This targeted NPK profile makes it the go-to choice for homeowners managing cool-season grasses and pre-emergent weed control programs.
I’m Rikta — the co-founder and writer behind Lawn Gear Lab. I’ve spent hundreds of hours cross-referencing manufacturer specs, studying university turfgrass publications, and analyzing owner feedback to isolate the specific formulation details that actually separate effective 19-0-6 blends from ordinary lawn foods.
Whether you’re overseeing a northern bluegrass lawn or a southern Bermuda patch, the right granular blend can mean the difference between a deep, uniform color and patchy, burned-out turf. After reviewing coverage rates, nitrogen-release technologies, and supplemental herbicide features, this guide identifies the best 19-0-6 fertilizer options for every lawn size and application goal.
How To Choose The Best 19-0-6 Fertilizer
Not all granular fertilizers with the same NPK label perform identically on your turf. The nitrogen source, particle coating technology, and presence of pre-emergent herbicides all influence the results you’ll see. Here are the three factors that matter most when selecting a 19-0-6 blend.
Nitrogen Release Technology
The nitrogen percentage in 19-0-6 is relatively high, which means a poorly coated product can release too much nitrogen too quickly and burn the grass blades. Look for blends that specify a percentage of slow-release or polymer-coated nitrogen. Products using PolyPlus OPTI45 or similar coating systems release nitrogen gradually over six to eight weeks, providing steady color without the flush-and-fade cycle of quick-release-only formulas.
Pre-Emergent Herbicide Integration
Many 19-0-6 blends are designed as combination products that include Dimension (dithiopyr) or similar pre-emergent herbicides. These products feed the lawn while preventing crabgrass and other annual weeds from germinating. If you already apply a separate pre-emergent, you may prefer a straight fertilizer blend. If you want a single-pass application in early spring, a combination product saves time and ensures proper timing.
Coverage Area and Bag Weight
19-0-6 products range from 15-pound residential bags covering 5,000 square feet to 50-pound professional bags covering over 12,000 square feet. Calculate your lawn’s square footage before purchasing. A bag designed for 5,000 square feet applied at half the rate on a 10,000-square-foot lawn will under-deliver nitrogen, while double-applying a concentrated product risks burn. Match the bag size to your actual coverage needs.
Quick Comparison
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| Model | Category | Best For | Key Spec | Amazon |
|---|---|---|---|---|
| Lesco 19-0-6 | Premium | Pre-emergent + feeding combo | 0.15% Dimension herbicide | Amazon |
| The Andersons 28-0-6 | Premium | Pet-safe rapid green-up | DG Technology quick-dissolve | Amazon |
| Dark Matter 21-0-0 | Mid-Range | High-nitrogen booster | Ultra-fine prill for even spread | Amazon |
| Fertilome 24-0-4 + Iron | Mid-Range | Iron-enhanced deep green | Quick + slow nitrogen dual source | Amazon |
| Scotts Turf Builder 38-0-4 | Budget | Fast greening on any grass | Two spreader settings | Amazon |
| Hi-Yield 12-6-6 | Budget | Shrubs and ornamentals | Slow-release nitrogen for safety | Amazon |
| Great Big Roses Liquid | Budget | Rose and flower bloom booster | 70 trace minerals + humic acid | Amazon |
In‑Depth Reviews
1. Lesco 19-0-6 Dimension Pre-Emergent Fertilizer
The Lesco 19-0-6 delivers the exact NPK ratio most lawn owners seek while integrating 0.15% Dimension herbicide for pre-emergent crabgrass control. The 50-pound bag covers up to 12,500 square feet, making it one of the highest coverage options in this category. The 30% PolyPlus OPTI45 coated nitrogen provides controlled slow-release feeding that sustains color for several weeks without the surge-and-crash pattern of uncoated urea.
Owner feedback consistently highlights the dual benefit of weed prevention and deep greening from a single spring application. The Dimension component stops crabgrass before it germinates, eliminating the need for a separate pre-emergent pass. Several long-time users report landscapers commenting on lawn quality after switching to Lesco, and the product performs reliably across both cool-season and warm-season grass types when applied according to label rates.
The 50-pound size requires careful spreader calibration, and the bag is non-returnable, so accurate coverage planning is essential. Hot or stressed lawns can still suffer burn if application timing is off — the label explicitly warns against applying during heat stress. For homeowners managing larger lawns who want a single early-spring product that feeds and prevents weeds, this Lesco blend is difficult to beat.
What works
- Integrated Dimension pre-emergent eliminates separate herbicide pass
- 30% slow-release nitrogen provides steady green for weeks
- High 12,500 sq ft coverage from a single 50 lb bag
What doesn’t
- Not returnable — coverage miscalculation is costly
- Can burn stressed grass if applied during high heat
2. The Andersons Professional Pet Safe 28-0-6 Fertilizer
The Andersons Pet Safe 28-0-6 is engineered around DG Technology, a particle design that dissolves into microscopic fragments upon contact with water. This rapid dissolution drives soluble nitrogen into the soil profile almost immediately, which reduces the amount of fertilizer residue left on grass blades where pet paws could pick it up. The 15-pound bag covers 5,000 square feet, and the formulation includes both quick-release and slow-release nitrogen for fast greening plus sustained feeding.
Reviews from dog owners emphasize the peace of mind this product provides. Because the fertilizer moves quickly into the root zone, pets can re-enter the lawn sooner after watering without the risk of irritation or ingestion of surface granules. Users also report a deep green color improvement within about a week, even during hot summer conditions. Several owners noted that urine burn spots on the lawn did not worsen after switching to this formula, likely due to the sulfur content that buffers soil pH.
The bag is smaller and pricier per square foot than many standard lawn foods, which makes it less economical for very large properties. It also contains no pre-emergent herbicide, so crabgrass control requires a separate product. For homeowners with dogs or small children who spend time on the grass, the faster soil absorption and reduced surface residue are meaningful safety advantages.
What works
- DG Technology dissolves granules away from grass surface quickly
- Fast green-up visible within one week of application
- Improved sulfur content supports overall turf health
What doesn’t
- No pre-emergent herbicide included
- Higher cost per square foot than standard granular blends
3. Dark Matter 21-0-0 Ammonium Sulfate Fertilizer
The Dark Matter 21-0-0 is an ammonium sulfate formulation that delivers a heavy nitrogen punch without phosphorus or potassium. The ultra-fine prill structure allows the granules to spread smoothly through broadcast spreaders and break down quickly once watered in. The 40-pound bag covers up to 13,333 square feet, which translates to a very low per-application cost for larger lawns. The 21-0-0 ratio is ideal for lawns that already have adequate phosphorus and potassium levels but need a concentrated green-up booster.
Customer feedback consistently describes this product as producing dramatic color changes within a week to ten days after application. Users who applied it alongside liquid iron or micronutrient sprays reported even more pronounced green results. Several reviewers cautioned that the high nitrogen content means strict adherence to application rates is critical — over-application can easily burn grass, especially on fescue or other cool-season varieties during warmer weather. The product works well on both cool-season and warm-season turf when timing and rates are respected.
Because it lacks potassium, the Dark Matter 21-0-0 is not a complete fertilizer and should be used as part of a rotation rather than as a standalone year-round program. The bag is large and can be unwieldy for tight storage spaces. For lawn owners who want a fast-acting, high-nitrogen supplement that won’t introduce phosphorus into already saturated soil, this prill formula delivers excellent value per pound.
What works
- Ultra-fine prill provides smooth, even coverage
- Very high coverage area per bag reduces cost per application
- Fast-acting ammonium sulfate produces deep green results
What doesn’t
- No potassium — requires rotation with complete fertilizer
- High nitrogen content demands precise application to avoid burn
4. Fertilome Lawn Food Plus Iron 24-0-4
The Fertilome 24-0-4 with iron delivers a nitrogen ratio slightly higher than 19-0-6 while adding iron to further intensify green color. The dual-nitrogen source includes both quick-release for an immediate color response and slow-release for sustained feeding over several weeks. The 20-pound bag covers 5,000 square feet at the recommended rate of 4 pounds per 1,000 square feet. The zero-phosphorus formulation makes it suitable for established lawns and areas with phosphorus runoff restrictions.
Long-time users report using Fertilome products for decades, particularly on winter rye grass in Arizona and drought-stressed Texas lawns. The iron component helps correct yellowing foliage, a common issue in alkaline soils where iron availability is low. Multiple reviews note that the lawn stayed green even through dry periods, suggesting the slow-release nitrogen kept feeding without requiring frequent reapplication. The product works with drop or broadcast spreaders, and the granular texture flows consistently without clogging.
The 24-0-4 ratio means this product contains less potassium than a true 19-0-6 blend, which may be a factor for soil that tests low in potassium. The bag also does not include any pre-emergent herbicide, so spring weed prevention must be handled separately. For homeowners dealing with iron chlorosis who want a straightforward nitrogen-plus-iron granular feed, Fertilome delivers reliable results at a reasonable coverage cost.
What works
- Iron addition corrects yellow foliage in alkaline soils
- Dual-source nitrogen provides both fast and sustained green-up
- Proven reliability over decades of use on various grass types
What doesn’t
- Lower potassium content than a balanced 19-0-6 blend
- No pre-emergent herbicide included
5. Scotts Turf Builder Lawn Food 38-0-4
Scotts Turf Builder Lawn Food uses a 38-0-4 ratio with a high quick-release nitrogen content designed to produce visible greening in as little as three days. The 15.8-pound bag covers 5,000 square feet, and the product offers two spreader settings: the standard Turf Builder rate for general lawn health and a Max Greening rate for deeper color enhancement. The formula is labeled safe for all grass types when used at the standard rate, and it allows children and pets back on the lawn immediately after watering.
Customer reviews are polarized. Many users report dramatic green results and appreciate the child-and-pet-friendly label, but a significant minority describe poor results and wasted money when the product did not green their lawn despite following instructions. The high 38% nitrogen content means this product is heavily skewed toward quick green-up rather than balanced feeding, and the low potassium ratio provides minimal stress tolerance support. The bag covers a standard suburban front lawn but requires more frequent reapplication than slow-release alternatives.
The product contains no pre-emergent herbicide, so spring weed prevention remains a separate task. The 38-0-4 ratio is not ideal for lawns with existing nitrogen burn or for users who prefer a slower, more sustained feeding curve. For homeowners who want maximum visual impact in a short window and are willing to reapply on schedule, the Scotts Turf Builder delivers that fast transformation reliably.
What works
- Visible greening in as little as three days after application
- Two spreader settings allow calibrated color control
- Safe for children and pets after watering
What doesn’t
- Results vary significantly — some users report no greening effect
- High quick-release nitrogen requires frequent reapplication
6. Hi-Yield Grower’s Special Fertilizer 12-6-6
The Hi-Yield 12-6-6 is formulated as an all-purpose plant food rather than a specialty lawn fertilizer. The 12% nitrogen content is lower than a standard 19-0-6 lawn feed, but the slow-release nitrogen source reduces burn risk on sensitive shrubs, trees, and ornamentals. The 10-pound bag is compact and easy to store, and the label provides separate application instructions for container plants, trees, and landscape shrubs. Container plants receive 1 teaspoon per 6-inch pot every six weeks, while trees and shrubs are fed in early spring and late fall.
Reviews from long-time users highlight consistent results on shrubs, magnolias, crepe myrtles, and flowering ornamentals. One reviewer noted that a nursery professional with 50 years of experience recommended this specific product, and the results matched the endorsement. The slow-release formulation is a key advantage for gardeners who tend to over-apply or who have sandy soil where quick-release nitrogen can leach rapidly. The 6% phosphorus and 6% potassium make it a balanced option for flowering plants that need root and bloom support.
The lower nitrogen percentage means this product is not designed for the deep greening that lawn owners expect from a 19-0-6 lawn blend. The 10-pound bag covers a modest area, and the application rates for trees can be confusing without careful label reading. For gardeners maintaining mixed beds of shrubs, ornamentals, and container plants who want a single granular fertilizer, the Hi-Yield 12-6-6 offers simple, proven results.
What works
- Slow-release nitrogen reduces burn risk on sensitive plants
- Balanced 12-6-6 ratio supports both foliage and bloom growth
- Proven effective for decades on shrubs and ornamentals
What doesn’t
- Lower nitrogen content not suitable for lawn greening
- Small bag size limits coverage for large landscapes
7. Great Big Roses and Flowers Liquid Fertilizer Booster
Great Big Roses is a liquid fertilizer booster that delivers humic acids, chelated iron, seaweed extract, and over 70 trace minerals directly to the root zone. Unlike granular 19-0-6 lawn feeds, this concentrate is designed for roses, hydrangeas, citrus, and flowering garden plants rather than turf. The 32-ounce bottle mixes at 4 ounces per gallon of water and provides enough concentrate for eight full applications, covering an entire growing season for most flower gardens. The liquid form allows nutrients to reach the root zone immediately without requiring tilling or digging.
Customer reports are overwhelmingly positive, with multiple users describing blooms appearing within weeks on rose bushes that had not flowered in years. The humic acid component helps unlock soil nutrients that were previously unavailable, amplifying the effect of existing fertilizers like fish emulsion or bone meal. The formula is intended to work alongside other organic inputs rather than replace a complete fertilizer program. A common complaint is the bottle design — the wide mouth makes measuring into a watering can messy, and the price per bottle feels high despite the concentrated dilution rate.
For turf lawn applications, this liquid booster is not a substitute for a granular 19-0-6 fertilizer. The product targets flower beds and individual shrubs, not large grassy areas. The liquid requires mixing and hand watering, which adds labor compared to spreader-applied granules. For rose enthusiasts and flower gardeners who want a biological soil activator that pushes existing organic inputs further, Great Big Roses delivers visible transformation without synthetic chemical load.
What works
- Humic acid and seaweed activate dormant soil nutrients
- Visible bloom increase reported within weeks on established roses
- One bottle covers a full growing season for most gardens
What doesn’t
- Not a standalone fertilizer — works best alongside other inputs
- Bottle design makes measuring and pouring difficult without spills
Hardware & Specs Guide
Polymer Coating Duration
The number of weeks a polymer-coated nitrogen source continues releasing is the most critical spec for 19-0-6 fertilizers. Lesco uses 30% PolyPlus OPTI45 coating, which extends feeding for roughly six to eight weeks compared to uncoated urea that releases in under two weeks. Products with a higher percentage of coated nitrogen provide more uniform color and reduce the risk of burn, but they also delay the initial green-up response. Check the label for the specific percentage of slow-release or polymer-coated nitrogen rather than assuming the entire 19% nitrogen is controlled.
Pre-Emergent Herbicide Rate
For combination 19-0-6 blends that include Dimension (dithiopyr), the herbicide concentration determines how long weed prevention lasts. The Lesco 19-0-6 contains 0.15% Dimension, which is a standard rate for early spring application when crabgrass is germinating. Higher herbicide percentages extend the window of prevention but increase the risk of turf injury if applied to stressed grass. The label on any combination product will specify the temperature and growth stage restrictions — applying too early or too late reduces effectiveness and can waste the entire application.
FAQ
Can I use 19-0-6 fertilizer on a newly seeded lawn?
How long does it take to see results from a 19-0-6 granular application?
Final Thoughts: The Verdict
For most gardeners, the 19-0-6 fertilizer winner is the Lesco 19-0-6 Dimension Pre-Emergent Fertilizer because it combines the exact NPK ratio with built-in crabgrass prevention in a single 50-pound bag that covers large lawns efficiently. If you want pet-safe rapid absorption that minimizes surface residue, grab the The Andersons 28-0-6. And for a high-coverage nitrogen booster that delivers deep color without phosphorus, nothing beats the Dark Matter 21-0-0.