Best Nitrogen Fertilizer For Grass for Different Lawn Needs

#1 · Best Overall

1. Simple Lawn Solutions Maximum Green

• Weight: 2 lb
• Form: Liquid

Best for: Quick green-up with easy spraying.

Why it ranks #1: Its 28-0-0 liquid formula combines 70% quick-release and 30% slow-release nitrogen, and the attached sprayer covers up to 3,200 square feet.

An attached hose-end sprayer applies this 28-0-0 liquid fertilizer at the product’s stated lawn ratio, making it a practical choice for homeowners who want to feed grass without separately mixing a spray solution. Its nitrogen blend pairs a fast color response with continued feeding between applications.

The formula supplies 28% nitrogen, a nutrient the listing links to chlorophyll and green color as well as lawn growth. Its 70% quick-release and 30% slow-release split is intended to address deficiencies rapidly while continuing to feed between applications. The attached sprayer covers up to 3,200 square feet, so application can be handled directly with the included sprayer rather than a separate mixing step. The liquid format suits buyers who prefer spraying over spreading granules.

Skip it if you prefer spreading granules or need to treat more than 3,200 square feet in one attached-sprayer application; Scotts Turf Builder Lawn Food is a granular alternative.

Choose this for a spray-based spring or summer nitrogen treatment when the attached applicator and quick-plus-slow-release blend fit your routine. Its stated coverage is 3,200 square feet, so larger lawns require planning.

Listed on Amazon as: 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)

#2 · High-Nitrogen Liquid

2. Petra Liquid Nitrogen Fertilizer

• Weight: 2 lb
• Form: Liquid

Best for: DIY liquid high-nitrogen feeding.

Why it ranks #2: This lawn-focused 28-0-0 liquid also splits nitrogen between 70% quick-release and 30% slow-release, supporting rapid greening and ongoing growth.

A 28-0-0 liquid formula combines 70% quick-release nitrogen with 30% slow-release nitrogen, giving DIY lawn owners both a rapid green response and continued feeding between applications. This spring-and-summer grass fertilizer is applied after dilution with water and spraying over the lawn.

The product’s 28-0-0 analysis provides a high-nitrogen option for grass, while its quick-and-slow-release split balances a fast response with ongoing growth between applications. Unlike an attached-sprayer product, its directions call for diluting the fertilizer with water and spraying the mixture, so application involves preparing a solution. That workflow can suit buyers who already use a spray setup, but they need to account for dilution before treating the lawn.

Skip it if you want an attached hose-end applicator rather than preparing a diluted spray; Simple Lawn Solutions Maximum Green & Growth includes an attached sprayer.

Choose this if you want a 28-0-0 liquid treatment and can prepare a water dilution before spraying. The split-release formula is the draw, while buyers seeking a ready-to-apply hose-end setup should look elsewhere.

Listed on Amazon as: 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

#3 · Longest Feeding

3. Pennington Full Season Lawn Fertilizer

• Weight: 11.2 lb
• Form: Granules

Best for: Season-long controlled-release feeding.

Why it ranks #3: Its 32-0-5 granular formula uses polymer-coated urea to release nitrogen for up to four months, and includes 5% iron for greening.

Polymer-coated urea releases nitrogen for up to four months, letting this Pennington fertilizer cover a season with one application according to its listing. Its 32-0-5 analysis also includes 5% iron, pairing controlled-release feeding with a deep-greening nutrient in a granular product.

The polymer-coated urea is listed as slowly releasing nitrogen for up to four months, supporting the one-application-per-season approach. Added iron promotes deep green color, while natural beneficial microorganisms are described as revitalizing soil. Apply the granules with a spreader according to package directions. Listed grass types include Kentucky bluegrass, tall fescue, Bermudagrass, and Zoysiagrass, among others. Coverage varies by bag size, with options stated for areas up to 4,000 or 12,000 square feet.

Skip it if you live in Hawaii or South Dakota, where this product is not available; Scotts Turf Builder Lawn Food is listed for any grass type.

Choose this for spreader-based feeding when a season-long release window and added iron suit your lawn routine. Check regional availability and the coverage associated with the bag size before planning an application.

Listed on Amazon as: Pennington Full Season Lawn Fertilizer 4M 32-0-5 RF 3/11.2Lb

#4 · Any-Grass Formula

4. Scotts Turf Builder Lawn Food

• Weight: 12.5 lb
• Form: Powder

Best for: Flexible-season root-supporting feed.

Why it ranks #4: Scotts says this lawn food can be used on any grass type and helps build strong, deep roots that improve water and nutrient absorption.

Scotts Turf Builder Lawn Food can be applied to wet or dry grass in spring, summer, or fall, giving homeowners flexibility to fit feeding into different seasonal routines. Its listed benefits also include strengthening grass and building deep roots that improve water and nutrient absorption.

The product can be used on any grass type, so it does not limit selection to a named variety. Its wet-or-dry application guidance gives flexibility around lawn conditions, and the spring-through-fall timing provides several seasonal windows. Scotts says the lawn food feeds and strengthens grass to help protect against future problems, while deeper roots improve water and nutrient absorption compared with an unfed lawn. The powder format is distinct from liquid spray treatments and granular products.

Skip it if you need a liquid hose-end application or a stated nitrogen percentage; Simple Lawn Solutions Maximum Green & Growth provides an attached sprayer and 28-0-0 analysis.

This is a fit for homeowners wanting flexible seasonal feeding across grass types, with root support among the listed benefits. Choose it for wet-or-dry application flexibility, not for a liquid hose-end workflow.

Listed on Amazon as: Scotts Turf Builder Lawn Food, 12.5 lbs.

#5 · Nitrogen Plus Iron

5. Simple Lawn Solutions Lawn Energizer

• Weight: 3.1 lb
• Form: Liquid

Best for: Iron-and-nitrogen color booster.

Why it ranks #5: This ready-to-use 6-0-0 liquid combines 6% nitrogen with 5% iron and an attached sprayer rated to cover 3,200 square feet.

A blend of 6% nitrogen and 5% iron gives this liquid lawn booster a specific role: supporting growth while helping deepen turf color. The ready-to-use hose-end sprayer covers up to 3,200 square feet, making it convenient for homeowners seeking a sprayed nutrient boost.

The 6-0-0 formula provides nitrogen for lawn growth, while the added iron is identified as a contributor to deeper green color. Magnesium, manganese, and sulfur are also included in the micronutrient blend. Connect the attached hose-end sprayer to a garden hose to apply the liquid, avoiding a separate spreader workflow. Because iron can stain, the instructions advise careful application around fences, decks, siding, and driveways; that makes controlled spraying important around hard surfaces.

Skip it if you want a high-nitrogen 28-0-0 treatment; Petra Liquid Nitrogen Fertilizer 28-0-0 offers a higher nitrogen percentage.

This suits lawn owners seeking an iron-and-nitrogen color booster applied through a hose-end sprayer. Take care around nearby hard surfaces because the product’s iron may stain, and treat it as a booster rather than a high-nitrogen feed.

Listed on Amazon as: Commercial Grade Lawn Fertilizer with Iron- Liquid Fertilizer Spray- Nitrogen and Iron for Deeper Green Turf- Any Grass Type – Simple Lawn Solutions – Lawn Energizer – 32 Ounce

#6

6. CountryMax Urea Fertilizer

• Weight: 50 lb
• Form: Granules

Best for: High-nitrogen granular lawn feeding.

Why it ranks #6: Its 46-0-0 granular urea provides a high nitrogen concentration for lawn green-up, but the supplied listing offers fewer lawn-specific application details.

CountryMax Urea Fertilizer supplies 46% nitrogen in granular form, offering lawn owners a concentrated nitrogen option for rapid green-up and vigorous growth. Its simple 46-0-0 analysis focuses on nitrogen rather than combining it with listed phosphorus or potassium, suiting a targeted feeding approach.

The 46-0-0 analysis makes this a nitrogen-focused fertilizer, and the product description identifies its formula as fast-acting for green-up and vigorous growth. Granules suit buyers who prefer a spreadable solid product over liquid spraying, though the supplied listing does not provide application directions or coverage figures. The 50-pound product is a substantial quantity to plan storage and handling around. Use the nitrogen emphasis to guide selection when a lawn needs that nutrient focus.

Skip it if you need a stated coverage area or detailed application guidance before choosing a fertilizer; Scotts Turf Builder Lawn Food lists application timing and wet-or-dry use.

Consider this for a lawn owner seeking a granular 46-0-0 nitrogen source and comfortable planning application from product directions beyond the supplied listing. Its high nitrogen focus is clear, but coverage and use instructions are not provided here.

Listed on Amazon as: CountryMax 50LB Urea Fertilizer 46-0-0 High Nitrogen Lawn Fertilizer

#7

7. Supply Solutions Rapid Green

• Weight: 25 lb
• Form: Granules

Best for: Nitrogen-and-sulfur turf feeding.

Why it ranks #7: The 33-0-0 granular formula adds sulfur to nitrogen and is described for turf and lawns, though the listing has conflicting weight details.

Supply Solutions Rapid Green combines a 33-0-0 analysis with added sulfur, targeting turf owners seeking nitrogen-driven growth alongside uniform color and steady growth. The granular fertilizer is listed for lawns, turf grass, gardens, and crops, making it relevant beyond a grass-only application.

The product description connects nitrogen with leaf growth and says the formula supports thicker blades, sturdy roots, and lush coverage. Added sulfur is presented as supporting uniform color and steady growth, while the listing also links it with soil structure. Granules suit a spreader-style application rather than liquid spraying. Its stated uses span turf and lawns as well as gardens and crops, which may appeal to buyers caring for multiple planting areas; the supplied information does not give application directions.

Skip it if you need explicit lawn coverage and application instructions before buying; Scotts Turf Builder Lawn Food specifies wet-or-dry application and seasonal timing.

This fits buyers seeking a granular 33-0-0 fertilizer with added sulfur for turf or broader garden use. The supplied listing lacks coverage and directions, so it is a less guided choice for application planning.

Listed on Amazon as: Supply Solutions | 33-0-0 Rapid Green High Nitrogen Fertilizer with Sulfur – Fast-Acting Lawn & Turf Fertilizer for Lush Green Growth – Nitrogen-Rich Plant Food for Grass, Crops & Gardens (10 Pounds)

#8

8. Milorganite 6-4-0 Fertilizer

• Weight: 32 lb
• Form: Pelletized

Best for: Slow-release pelletized lawn feeding.

Why it ranks #8: This 32-pound pelletized lawn fertilizer includes iron and a feeding-tips brochure; its 6-4-0 analysis is less nitrogen-concentrated than leading picks.

Milorganite’s 6-4-0 pelletized fertilizer combines slow-release feeding with organically complex iron, giving lawn owners a granular option for gradual nourishment and deep green color. A printed seasonal feeding and spreader tips brochure accompanies the 32-pound bag to support application planning.

The 6-4-0 analysis provides nitrogen alongside phosphorus and potassium, while slow-release feeding supports a gradual application approach. Organically complex iron helps produce a deep green lawn without the concrete staining associated in the listing with iron salts in some synthetic fertilizers. Its low-salt formula is presented as helping avoid streaks, stripes, and fertilizer burn, including in hot or dry conditions. The included seasonal brochure offers feeding and spreader guidance; store the fertilizer in a cool, dry place.

Skip it if you need a liquid treatment or prefer a fast-acting nitrogen-only formula; CountryMax Urea Fertilizer 46-0-0 is a granular high-nitrogen option.

This fits lawn owners who prefer pelletized, slow-release feeding, iron for green color, and printed seasonal guidance. Its 6-4-0 analysis is not a nitrogen-only formula, and the initial earthy aroma is worth considering.

Listed on Amazon as: Milorganite 6-4-0 Fertilizer and Feeding Tips Brochure Bundle, 32lb

#9

9. O.M. Scott & Sons Natural Grass Food

• Weight: 12.7 lb

Best for: Natural-feel feeding for family yards.

Why it ranks #9: This natural lawn food feeds for up to 10 weeks when watered after application, but its nitrogen analysis is not supplied for comparison.

O.M. Scott & Sons Natural Grass Food begins feeding immediately when watered after application and continues for up to 10 weeks, giving homeowners a defined feeding interval. The listing also says it can be used around kids and pets, with people and pets able to reenter immediately after application.

This natural lawn food is described as using nutrient sources found in nature and helping strengthen grass from the roots up. Its feeding begins immediately when you water after application and continues for up to 10 weeks, creating a clear sequence: spread, water, then allow reentry as directed. Apply with a Scotts spreader, use the bag’s dial setting, and finish with light watering. The product-care instructions recommend feeding every 8 to 10 weeks, up to four times a year.

Skip it if you cannot water the lawn immediately after spreading; Pennington Full Season Lawn Fertilizer releases nitrogen for up to four months per application.

This suits homeowners seeking a natural-source lawn food with a stated 8-to-10-week feeding interval and immediate reentry guidance. It requires a Scotts spreader and watering after application, so plan for both steps.

Listed on Amazon as: O.M. Scott & Sons Natural Grass Food, 12.72 lbs.

#10

10. Supply Solutions Urea Fertilizer

• Weight: 5 lb
• Form: Granules

Best for: Compact high-nitrogen garden feeding.

Why it ranks #10: Its 46% urea nitrogen can support plant growth, and the listing includes grass among many uses, but it is less specifically lawn-focused.

Supply Solutions Urea provides 46% urea nitrogen in granules, giving lawn and garden owners a concentrated nitrogen-focused plant food. The listing connects nitrogen with protein synthesis and green color, while also naming flowers, fruits, vegetables, trees, and other plants among its intended uses.

Its 46% urea nitrogen content is presented as supporting plant health, protein synthesis, and production of green color. The listing extends use beyond lawns to flowers, fruits, vegetables, trees, and other plants, making it a multi-purpose option for buyers tending different plantings. Granules provide a solid application format rather than a spray. Handling guidance calls for protective clothing and gloves and advises avoiding skin and eye contact, so take care during application.

Skip it if you want a lawn fertilizer with spreader directions and seasonal application timing; Scotts Turf Builder Lawn Food provides wet-or-dry and spring-through-fall guidance.

This suits buyers seeking concentrated granular urea nitrogen for lawns alongside garden plants and crops. Follow the listed protective-handling precautions, and choose another option if you need detailed lawn-specific spreading directions.

Listed on Amazon as: Supply Solutions Urea 46-0-0 Nitrogen Fertilizer to Stimulate Lush Growth and Deep Green Color – Plant Food Plant Fertilizer for Plants Lawn Garden – Bloom Booster for Flowers, Fruits (5lbs)