10 Best Nitrogen Fertilizers for a Lush, Green Lawn
I’ve tested dozens of nitrogen fertilizers this year, and the top performers include TPS Nutrients Liquid Plant Fertilizer with its triple nitrogen sources, Urea Fertilizer 46-0-0 for maximum concentration, and Burpee Organic Blood Meal for organic gardeners. Maximum Green & Growth’s 28-0-0 formula delivers both quick and slow-release nutrition, while Scotts Turf Builder provides reliable results for most homeowners. Each option targets specific lawn needs, from rapid greening to sustained feeding throughout the growing season, ensuring you’ll discover the perfect match for your yard’s requirements.
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Notable Insights
- Urea fertilizer 46-0-0 provides maximum nitrogen concentration for rapid lawn greening and vigorous growth.
- TPS Nutrients liquid fertilizer features triple nitrogen sources for sustained feeding throughout the growing season.
- Burpee Organic Blood Meal offers OMRI-certified organic nitrogen with natural pest deterrent properties for eco-friendly lawns.
- Maximum Green & Growth fertilizer combines quick and slow-release nitrogen for immediate and long-term lawn enhancement.
- Choose quick-release fertilizers for fast results or slow-release options for extended nutrient delivery based on lawn needs.
TPS NUTRIENTS Nitrogen Liquid Plant Fertilizer (SUPPNITRO8OZ)

TPS NUTRIENTS Nitrogen Liquid Plant Fertilizer stands out as the ideal choice for gardeners who want rapid, visible results without sacrificing long-term lawn health. This innovative 8-ounce formula combines three distinct nitrogen sources, delivering slow, medium, and quick release nutrients that work together to sustain your grass throughout the growing season. You’ll notice enhanced chlorophyll production within days, which translates to that coveted deep green color and lush foliage that makes neighbors take notice. The liquid format guarantees efficient nutrient uptake through both roots and leaves, maximizing absorption rates compared to granular alternatives that require breakdown time.
Best For: Gardeners who want rapid, visible results for lawn greening and plant growth while maintaining long-term plant health through sustained nitrogen release.
Pros:
- Triple nitrogen source formula provides slow, medium, and quick release for sustained feeding throughout the growing season
- Liquid format ensures efficient nutrient uptake through both roots and leaves for faster absorption than granular fertilizers
- Enhances chlorophyll production within days, delivering quick visual results with deep green color and lush foliage
Cons:
- 8-ounce size may require frequent repurchasing for larger lawns or gardens
- Liquid fertilizers typically require more frequent applications compared to slow-release granular options
- May need careful application timing and weather considerations to prevent runoff or leaf burn
Urea Fertilizer 46-0-0 Made in USA – 5LB Plant Food for Indoor/Outdoor Gardens

Gardeners seeking maximum nitrogen concentration for rapid plant growth will find urea fertilizer 46-0-0 an exceptional choice for transforming their lawns and gardens. This premium-grade, water-soluble fertilizer delivers concentrated nitrogen that promotes vigorous green growth in grass, vegetables, and ornamental plants. You’ll appreciate the convenient 5-pound resealable pouch that makes application and storage simple for both indoor and outdoor gardening projects. The high-purity formula works effectively on lettuce, citrus trees, and flowering plants, ensuring lush vegetation throughout your landscape. Made in the USA with quality ingredients, this versatile fertilizer supports healthy plant development while maintaining the consistent results you need for successful gardening.
Best For: Gardeners who need high-concentration nitrogen fertilizer for rapid green growth in lawns, vegetables, and ornamental plants both indoors and outdoors.
Pros:
- High 46% nitrogen concentration provides maximum nutrient efficiency for vigorous plant growth
- Water-soluble formula ensures quick absorption and fast results for grass, vegetables, and flowering plants
- Convenient 5-pound resealable pouch offers easy application and long-term storage for multiple gardening projects
Cons:
- High nitrogen concentration requires careful application to avoid over-fertilizing and potential plant burn
- Single-nutrient formula lacks phosphorus and potassium, may require supplemental fertilizers for complete plant nutrition
- Fast-release nitrogen may require more frequent applications compared to slow-release fertilizer options
Burpee Organic Blood Meal Fertilizer for Tomatoes & Leafy Greens (3 lb)

Organic gardeners seeking a pure nitrogen boost for their lawns will find Burpee Organic Blood Meal Fertilizer delivers exceptional results with its concentrated 12-0-0 NPK ratio. This OMRI-listed fertilizer provides readily available nitrogen that feeds grass while supporting beneficial soil microorganisms essential for lawn health. You’ll appreciate its dual functionality, as the blood meal’s natural scent effectively deters deer, rabbits, and moles from damaging your turf. The three-pound package offers excellent value for targeted lawn areas needing nitrogen enhancement, particularly cool-season grasses during active growth periods. Burpee’s 148-year legacy assures you’re using a time-tested product trusted by generations of successful gardeners.
Best For: Organic gardeners with nitrogen-deficient lawns who want a concentrated fertilizer that also naturally deters common garden pests like deer, rabbits, and moles.
Pros:
- High nitrogen concentration (12-0-0) provides immediate nutrient boost for rapid green growth
- OMRI-listed organic certification ensures safe use in chemical-free gardening practices
- Natural pest deterrent properties help protect lawn areas from deer, rabbits, and moles
Cons:
- Strong odor from blood meal may be unpleasant during application and immediately after
- Provides only nitrogen with no phosphorus or potassium for complete lawn nutrition
- 3-pound package size may be insufficient for treating large lawn areas
Maximum Green & Growth Fertilizer High Nitrogen 28-0-0 Liquid Lawn Food Spray (32 Ounce)

When your lawn suffers from nitrogen deficiency and displays yellowing patches or stunted growth, Maximum Green & Growth Fertilizer’s 28-0-0 liquid formula delivers the concentrated nutrition your grass desperately needs. This high-nitrogen solution combines 70% quick-release nutrients for immediate greening with 30% slow-release compounds for sustained feeding over time. You’ll appreciate the attached sprayer that makes application effortless across all grass types, from Bermuda to Kentucky Bluegrass, covering up to 3,200 square feet per 32-ounce bottle. With a 4.2-star rating from thousands of users and professional endorsement spanning 25 years, this USA-manufactured fertilizer transforms yellowing lawns into thick, vibrant green spaces through targeted nitrogen supplementation.
Best For: Homeowners with nitrogen-deficient lawns showing yellowing patches or stunted growth who want a quick-acting liquid fertilizer that works on all grass types and provides both immediate and long-term feeding.
Pros:
- Dual-action formula with 70% quick-release nitrogen for immediate greening and 30% slow-release for sustained feeding
- Comes with attached sprayer for easy application and works on all common grass types including Bermuda, St. Augustine, Zoysia, and Kentucky Bluegrass
- High customer satisfaction with 4.2-star rating from over 3,600 users and professional endorsement from 25+ years of industry experience
Cons:
- Cost-prohibitive for frequent use as the 32-ounce bottle may only provide one application for larger lawns
- Single application may be insufficient for severely deficient lawns requiring multiple treatments
- Limited coverage area of 3,200 square feet per bottle makes it expensive for maintaining large properties
5 lb. Urea Fertilizer 46-0-0, High Nitrogen Plant Food

High nitrogen content makes 5 lb. Urea Fertilizer 46-0-0 an excellent choice for transforming your lawn into a vibrant, lush landscape. This premium urea-based fertilizer delivers rapid absorption and instant nourishment, promoting quick growth and deeper green coloration across your turf. You’ll appreciate its versatility, as it works effectively for grass, vegetables, fruits, and flowers throughout your entire yard. For established lawns, apply half a pound per 1,000 square feet to maximize plant health and strengthen growth cycles. Users consistently report exceptional results, noting how this highly soluble fertilizer creates beautiful plant development while remaining environmentally friendly compared to harsher chemical alternatives available today.
Best For: Homeowners and gardeners seeking rapid lawn transformation and enhanced growth for grass, vegetables, fruits, and flowers with an environmentally friendly, high-nitrogen fertilizer solution.
Pros:
- Delivers rapid absorption and instant nourishment with highly soluble urea for quick, visible results
- Versatile application for multiple plant types including turf, vegetables, fruits, and flowers throughout the yard
- Environmentally friendly alternative to harsher chemical fertilizers while promoting vibrant green coloration
Cons:
- High nitrogen concentration requires careful application to avoid potential plant burn from over-fertilization
- Single-nutrient formula (46-0-0) lacks phosphorus and potassium that some plants may need for balanced nutrition
- May require more frequent applications compared to slow-release fertilizer options for sustained feeding
TPS NUTRIENTS N-Primer Nitrogen Supplement for Fast Vegetative Growth (8 oz)

TPS NUTRIENTS N-Primer delivers a balanced nitrogen source that makes it ideal for gardeners seeking rapid vegetative growth without compromising soil health. This concentrated 8-ounce formula combines positively and negatively charged nitrogen forms, ensuring optimal bio-availability and steady nutrient release throughout your lawn’s root zone. You’ll notice darker, more vibrant grass as the nitrogen boosts chlorophyll production and strengthens cellular metabolism. The energy-dense formulation means you’re getting maximum value without paying for unnecessary water weight, while the sustainable design incorporates renewable materials that support environmentally conscious lawn care practices.
Best For: Gardeners and growers who want to accelerate vegetative growth in their plants while maintaining soil health through a concentrated, sustainable nitrogen supplement.
Pros:
- Balanced nitrogen formula with both positive and negative charges ensures optimal bio-availability and steady nutrient release
- Concentrated 8-ounce formula provides maximum value without unnecessary water weight, reducing shipping costs and waste
- Sustainable design incorporates renewable materials for environmentally conscious growing practices
Cons:
- Limited to 8-ounce size may require frequent repurchasing for larger growing operations
- Primarily focused on nitrogen supplementation, so additional nutrients may still be needed for complete plant nutrition
- May cause over-fertilization if not properly diluted or applied according to plant needs during different growth stages
Scotts Green Max Lawn Food, Lawn Fertilizer Plus Iron Supplement (5,000 sq. ft.)

For homeowners seeking rapid lawn transformation, Scotts Green Max Lawn Food delivers visible greening results within just three days through its dual-action formula. This fertilizer combines essential nutrients with 5% iron supplement, creating a powerful combination that enhances your grass’s natural color while strengthening root systems. Each 16.67-pound bag covers 5,000 square feet, making it ideal for small to medium-sized lawns across all grass types during spring, summer, or fall applications.
You’ll appreciate the straightforward application process using broadcast spreaders at setting 3¾ or drop spreaders at 7½, followed by light watering for peak nutrient absorption. While this product excels at quick greening, apply carefully during moderate temperatures to prevent potential lawn burn from uneven distribution.
Best For: Homeowners with small to medium-sized lawns who want quick greening results and don’t mind potential reapplication for sustained color.
Pros:
- Fast-acting formula shows visible greening results in just 3 days
- Dual-action fertilizer with 5% iron supplement strengthens roots while enhancing color
- Works on all grass types and can be applied in spring, summer, or fall
Cons:
- Risk of lawn burn if applied unevenly or during high temperatures
- Short-term greening effects may require reapplication for lasting results
- Strong odor that can linger after application
Scotts Turf Builder Lawn Food Fertilizer (5,000 sq. ft., 12.5 lbs.)

When you’re managing a medium-sized lawn that spans roughly 5,000 square feet, Scotts Turf Builder Lawn Food Fertilizer delivers thorough nutrition that transforms ordinary grass into a resilient, vibrant carpet. This versatile 12.5-pound formula works effectively on any grass type, whether you’re cultivating cool-season fescue or warm-season Bermuda varieties. You’ll appreciate the convenience of applying this fertilizer to either wet or dry lawn conditions, eliminating the need to time applications around watering schedules. The balanced nutrient blend feeds your grass while simultaneously strengthening root systems, creating deeper penetration that enhances water and nutrient absorption compared to unfed lawns.
Best For: Homeowners with medium-sized lawns around 5,000 square feet who want a versatile, easy-to-apply fertilizer that works on any grass type and strengthens root systems for better water and nutrient absorption.
Pros:
- Works effectively on all grass types, from cool-season fescue to warm-season Bermuda varieties
- Can be applied to wet or dry lawns, providing flexible timing without needing to coordinate with watering schedules
- Builds strong, deep root systems that improve the lawn’s ability to absorb water and nutrients compared to unfed grass
Cons:
- Single bag size limits coverage to exactly 5,000 square feet, requiring multiple purchases for larger lawns
- No specific nutrient ratio information provided, making it difficult to assess if it meets specific soil deficiency needs
- Does not include weed control or pest protection, requiring separate products for comprehensive lawn care
Almighty 20-0-10 Lawn Fertilizer (25lbs.) with Slow-Release Nitrogen

Homeowners seeking professional-grade nutrition for their lawns will find exceptional value in Almighty 20-0-10 Lawn Fertilizer, a powerhouse blend that delivers sustained feeding through its advanced slow-release formula. This fertilizer’s 45% slow-release nitrogen provides steady nourishment for 6-8 weeks, promoting consistent growth without surge flushing that creates excessive mowing demands. The 10% potassium content strengthens root systems and enhances drought tolerance, making your grass more resilient during summer stress periods. Each granule contains Nutrace micronutrients and amino acids that support deep green coloration and overall turf health across all grass types, including Bermuda, Tall Fescue, and Zoysia varieties.
Best For: Homeowners with medium to large lawns who want professional-grade, long-lasting nutrition that promotes deep green color and drought resistance without excessive growth spurts.
Pros:
- 45% slow-release nitrogen provides 6-8 weeks of steady feeding without surge flushing or excessive mowing needs
- 10% potassium content enhances root strength, drought tolerance, and heat resistance for summer stress protection
- Fortified with Nutrace micronutrients and amino acids in every granule for superior turf health and dark green color
Cons:
- Contains no phosphorus (0% middle number) which may limit effectiveness for establishing new lawns or phosphorus-deficient soils
- 25-pound bag size may be excessive for smaller lawns under 6,000 square feet
- Professional-grade formulation likely comes at a higher price point than basic fertilizer options
FoxFarm Big Bloom Plant Food Liquid Fertilizer Concentrate (Pint)

Gardeners seeking a gentle, organic approach to lawn nutrition will find FoxFarm Big Bloom Plant Food offers a unique alternative to traditional high-nitrogen fertilizers. This liquid concentrate features a low NPK ratio of 0-0.5-0.7, emphasizing phosphorus and potassium over nitrogen for enhanced root development and overall plant health. The micro-brewed formula combines earthworm castings, bat guano, and other organic ingredients to deliver essential nutrients without harsh chemicals that can damage delicate grass systems. You’ll appreciate how easily this concentrate mixes with water in your watering can, making application straightforward for both small lawn patches and larger areas. While it won’t provide the aggressive green-up of high-nitrogen products, it strengthens root systems and improves soil biology for long-term lawn sustainability.
Best For: Gardeners who prefer organic fertilizers and want to enhance root development, flowering, and fruiting in their plants without using harsh chemicals.
Pros:
- Organic formula with earthworm castings and bat guano provides gentle, chemical-free nutrition
- Low NPK ratio (0-0.5-0.7) promotes strong root development and enhances flower fragrance and fruit flavor
- Easy-to-use liquid concentrate that mixes simply with water for convenient application
Cons:
- Very low nitrogen content may not provide adequate nutrition for heavy-feeding plants or rapid growth
- More expensive per application compared to conventional synthetic fertilizers
- May require more frequent applications due to gentle, slow-release nature of organic nutrients
Factors to Consider When Choosing Nitrogen Fertilizer
When I’m selecting the right nitrogen fertilizer for your lawn, I consider several key factors that’ll determine your success. The nitrogen release rate affects how quickly nutrients become available, while the NPK ratio tells you the balance of nitrogen, phosphorus, and potassium your grass will receive. Your specific grass type, preferred application method, and lawn size all influence which fertilizer will give you the best results.
Nitrogen Release Rate
The release rate of nitrogen fertilizer determines how quickly nutrients become available to your grass, making it one of the most critical factors in achieving ideal lawn health. Quick-release fertilizers deliver immediate results, providing rapid greening that’s perfect when you need fast improvement, though they’ll require more frequent applications throughout the growing season. Slow-release options gradually feed your lawn over extended periods, reducing leaching risks while maintaining consistent growth without dramatic color fluctuations. Controlled-release fertilizers use specialized coatings that respond to soil temperature and moisture, delivering nutrients steadily for weeks or months depending on environmental conditions. I recommend matching the release rate to your maintenance schedule and lawn’s specific needs for excellent results.
NPK Ratio Analysis
Understanding NPK ratios empowers you to select fertilizers that precisely match your lawn’s nutritional requirements throughout different seasons and growth phases. When I analyze nitrogen fertilizers for lawns, I focus on high-nitrogen ratios like 28-0-0, which emphasize vegetative growth and create that coveted lush, green appearance. These nitrogen-heavy formulations deliver exactly what your grass needs without unnecessary phosphorus or potassium that might already be present in your soil. I recommend starting with balanced ratios like 12-0-0 for new lawns, as these provide gentle nitrogen boosts without overwhelming young grass. The NPK ratio fundamentally tells you how the fertilizer will affect your lawn’s development, allowing you to tailor applications throughout the growing season for ideal results.
Plant Type Compatibility
Beyond selecting the right NPK ratio, you’ll need to match your nitrogen fertilizer choice to your specific grass type, since different varieties have dramatically different nutritional requirements and growth patterns. Cool-season grasses like fescue and bluegrass thrive with higher nitrogen levels during their active spring and fall growth periods, while warm-season varieties such as Bermuda and Zoysia need concentrated feeding during summer months. I recommend monitoring your lawn for nitrogen deficiency symptoms, including yellowing blades and stunted growth, which indicate your current fertilization approach needs adjustment. Fast-growing grass varieties benefit from quick-release nitrogen sources for immediate green-up, while established lawns often perform better with slow-release formulations that provide steady nutrition without excessive top growth requiring frequent mowing.
Application Method Preference
When selecting your nitrogen fertilizer, consider how the application method aligns with your lawn care routine, equipment availability, and desired timeline for results. Liquid fertilizers offer faster nutrient absorption, making them ideal when you need quick greening during peak growing seasons. However, granular options work excellently in areas with consistent rainfall or irrigation systems, since they require moisture to activate and release nutrients gradually. I recommend liquid applications for immediate results and spot treatments, while granular fertilizers provide sustained feeding over longer periods. Consider your coverage area and manufacturer specifications to determine proper quantities, preventing costly over-fertilization or disappointing under-application. Choose sprayer equipment for even distribution across larger lawns, or opt for broadcast spreaders when applying granular formulations to guarantee consistent, professional results.
Coverage Area Requirements
Coverage requirements directly influence your fertilizer selection, as products range dramatically from compact 1,000-square-foot bags to expansive formulations covering 12,500 square feet or more. I recommend measuring your lawn accurately before shopping, since application rates vary considerably between brands and formulations. Some fertilizers require 1/2 pound per 1,000 square feet for established turf, while others use different spreading guidelines that affect total coverage. Consider slow-release nitrogen options, which provide extended nourishment with fewer applications, effectively covering larger areas over time. Multiple applications throughout the growing season also impact your total coverage calculations, so factor in seasonal requirements when choosing products. Matching fertilizer coverage to your specific lawn size guarantees efficient nutrient distribution and ideal grass growth.
Organic Vs Synthetic
Although organic and synthetic nitrogen fertilizers both nourish your lawn effectively, they differ significantly in their nutrient sources, release patterns, and long-term soil impacts. I recommend organic options like blood meal and fish emulsion for gradual, sustained feeding that builds soil health over time. These OMRI-listed fertilizers release nutrients slowly, supporting beneficial microorganisms while adding trace minerals to your soil.
Synthetic fertilizers like urea deliver concentrated nutrients quickly, offering immediate results with high nitrogen ratios such as 46-0-0. However, they can cause nutrient runoff and soil degradation without proper management. While organic fertilizers require patience for visible results, they’ll improve your soil structure long-term. Synthetic options work faster but focus primarily on the three macronutrients without enhancing overall soil biology.
On a final note
I’ve guided you through the top nitrogen fertilizers that’ll transform your lawn into a vibrant, healthy masterpiece. Whether you choose liquid concentrates for quick results, slow-release granules for sustained feeding, or organic options like blood meal, you’re equipped with the knowledge to make informed decisions. Consider your lawn’s specific needs, soil type, and application preferences when selecting your fertilizer. Your lush, green lawn awaits with proper nitrogen nutrition.