Best High Nitrogen Fertilizer for Lawns, Gardens, and Greens

#1 · Best Overall

1. Cz Garden Supply Urea

• Weight: 0.1 milligrams
• Form: Granules

Best for: For Urea Gardeners and Tie-Dye.

Why it ranks #1: Its 46-0-0 urea analysis is the highest stated ratio here, and listed uses span indoor flowers, lawns, vegetables, fruit, and citrus trees.

Its 46-0-0 water-soluble urea pairs concentrated nitrogen with an unusual second use: tie-dye and batik projects. The granules suit gardeners seeking nitrogen for flowers, lawns, vegetables, citrus, and other listed plantings, while the resealable five-pound package supports repeat use.

The 46-0-0 analysis makes this a nitrogen-focused choice for lush growth across indoor flowers, outdoor gardens, lawns, vegetables, fruit, and citrus trees. Its water-soluble, high-purity urea can support a workflow involving soil application, and the product information gives a typical four-to-six-week interval. The heavy-duty resealable, easy-pour package helps contain the granules between applications. Its tie-dye and batik use also offers a craft application beyond feeding plants.

Skip it if you need a liquid lawn spray with an attached applicator; Simple Lawn Solutions Maximum Green & Growth 28-0-0 includes one.

Choose this for a garden or lawn where concentrated urea, a resealable five-pound supply, and tie-dye versatility suit your needs. Its 46-0-0 nitrogen focus is the key fit; follow the supplied application directions.

Listed on Amazon as: Urea Fertilizer 46-0-0 Made in USA – 5LB Plant Food for Indoor/Outdoor Flowers & Gardens – Promotes Lush Growth – Lettuce, Green Lawns, Fruit, Vegetables, Citrus Trees, Tie Dye Granules Prills

#2 · Broad Garden Use

2. The Grow Co Urea

• Weight: 5 lb
• Form: Granules

Best for: For Broad Plant Nitrogen Feeding.

Why it ranks #2: This 5-pound, 46-0-0 urea is listed for grass, vegetables, fruit, and flowers, making it a versatile high-nitrogen granule.

A 46-0-0 urea formula brings a high nitrogen concentration to grass, vegetables, fruits, and flowers, with greener color and leafy growth as its stated aims. The Grow Co supplies it as five pounds of granules for gardeners feeding several kinds of plants.

The 46-0-0 ratio makes this a concentrated nitrogen supplement for buyers addressing nitrogen needs across lawns, vegetables, fruit, and flowers. Granules offer a solid-form feeding option, while the product’s stated greener leafy growth benefit may suit plants where foliage is the priority. Its broad plant list is useful for a mixed garden rather than a single crop. The supplied information also describes support for larger flowers and yield, extending its stated use beyond leaf color.

Skip it if you want an organic blood meal for heavy-feeding greens; True Organic Blood Meal is made with organic inputs.

Pick this five-pound urea option when a mixed lawn and garden needs nitrogen-forward granules for foliage and growth. Its broad plant list is useful, but buyers seeking organic blood meal or balanced nutrients should choose accordingly.

Listed on Amazon as: 5 lb. Urea Fertilizer 46-0-0, High Nitrogen Fertilizer for Plants, Ideal Plant Food Nitrogen for Grass, Vegetable, Fruits, and Flowers – Promotes Greener Plant Color and Vibrant, Lush Growth

#3 · Organic Leafy Growth

3. True Organic Blood Meal

• Weight: 3 lb
• Form: Granules

Best for: For Organic Heavy-Feeding Greens.

Why it ranks #3: This organic-input blood meal targets heavy-feeding crops such as corn, spinach, and broccoli, and its 3-pound bag covers 104 square feet.

Made with organic inputs, this blood meal targets rapid vegetative growth in heavy feeders such as corn, spinach, and broccoli. The three-pound granule bag covers 104 square feet, giving gardeners a defined coverage figure for planning leafy-crop feeding.

Blood meal supplies the nitrogen focus behind this product’s emphasis on lush, green vegetative growth, particularly for leafy greens and heavy-feeding crops. Its stated coverage of 104 square feet per three-pound bag helps gardeners estimate how much area one package serves. The granule form fits soil-based garden feeding, while the organic-input positioning may appeal to growers mindful of what goes into edible gardens. Product information also connects plant foods with soil nutrients and microbial activity.

Skip it if you need a liquid fertilizer for vegetables; TPS Nutrients High Nitrogen Vegetable Fertilizer is supplied in liquid form.

This suits growers seeking an organic-input blood meal for leafy vegetables and other heavy feeders, with stated coverage to plan a garden bed. It is a granule soil product, not a liquid feeding option, and must not be ingested.

Listed on Amazon as: True Organic Blood Meal – High-Nitrogen Organic Fertilizer for Rapid Vegetative Growth – 3lb Bag Covers 104 Sq. Ft.

#4 · Best Lawn Sprayer

4. Simple Lawn Solutions 28-0-0

• Weight: 2 lb
• Form: Liquid

Best for: For Sprayed Lawn Nitrogen Feeding.

Why it ranks #4: The 28-0-0 liquid lawn food includes an attached sprayer, covers up to 3,200 square feet, and combines quick- and slow-release nitrogen.

An attached sprayer applies this 28-0-0 liquid lawn food at its stated application ratio, simplifying lawn feeding without a separate sprayer. It covers up to 3,200 square feet and combines quick-release and slow-release nitrogen for different feeding timings.

The attached sprayer is the central workflow advantage: it applies product at the stated ratio and covers up to 3,200 square feet. Its 28-0-0 formula contains 70% quick-release nitrogen for quickly addressing deficiencies and 30% slow-release nitrogen for continued feeding between applications. That combination supports both a prompt color response and ongoing nutrient supply. The product is specifically presented as lawn food for spring and summer and is listed for any grass type.

Skip it if you need nitrogen for leafy vegetables and flowers; The Grow Co 5 lb. Urea Fertilizer 46-0-0 lists those uses.

Choose this for lawn feeding when a sprayer-integrated liquid, stated area coverage, and quick- plus slow-release nitrogen match your workflow. Its listed role is turf care, so gardeners seeking a broad vegetable and flower fertilizer should look elsewhere.

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)

#5 · Best Soil Acidifier

5. The Grow Co Ammonium Sulfate

• Weight: 4 lb
• Form: Granules

Best for: For Acid-Loving Plant Beds.

Why it ranks #5: Its 21-0-0 ratio supplies nitrogen and 24% sulfur; the product is specifically described for acid-loving plants and alkaline soil.

Its 21-0-0 analysis combines 21% nitrogen with 24% sulfur, giving this ammonium sulfate a dual focus on greener growth and soil acidification. That makes it especially relevant to acid-loving plants and highly alkaline soil, rather than gardeners seeking nitrogen alone.

The nitrogen component supports growth and greener plant color, while the sulfur is identified as an acidifying ingredient that lowers soil pH. Those two functions make this granule fertilizer particularly relevant when a garden includes acid-loving plants or highly alkaline soil. The stated 21-0-0 ratio helps buyers distinguish it from higher-nitrogen urea, and the product also describes soil-health benefits. Its five-pound title quantity offers a solid-form supply for garden and lawn use.

Skip it if you need nitrogen without an acidifying soil role; The Grow Co 5 lb. Urea Fertilizer 46-0-0 is a nitrogen-focused alternative.

This is a targeted choice for growers of acid-loving plants or those addressing highly alkaline soil while supplying nitrogen. Its sulfur-based pH-lowering function is a key fit consideration, so match it to the soil and plants at hand.

Listed on Amazon as: Ammonium Sulfate High Nitrogen Fertilizer for Plants Rapid Growth, 5lb

#6

6. Down To Earth Blood Meal

• Form: Powder

Best for: For Small Organic Soil Applications.

Why it ranks #6: This OMRI-listed 12-0-0 blood meal suits small gardens, containers, and heavy feeders, with directions to mix it into soil and water it in.

OMRI Listed blood meal in a half-pound package offers an organic gardening option for small beds, containers, and other limited planting areas. Its 12-0-0 analysis targets vigorous leafy growth, especially for heavy feeders such as corn, broccoli, and greens.

The 12-0-0 blood meal supplies nitrogen for leafy growth and is listed for vegetables, flowers, and lawns, with heavy feeders such as corn, broccoli, and leafy greens singled out. Its half-pound size suits small gardens and containers, while the powder form can be broadcast or hand applied and mixed into soil or compost. Because it is not water soluble, the supplied guidance calls for soil application and watering in rather than using it as a liquid feed.

Skip it if you need a water-soluble liquid feed; TPS Nutrients High Nitrogen Vegetable Fertilizer is supplied as a liquid.

Choose this for small organic gardens or containers needing a soil-applied nitrogen source for leafy crops and other heavy feeders. Its powder must be mixed into soil or compost and watered in, so it is not a soluble liquid-feed choice.

Listed on Amazon as: Down To Earth All Natural Fertilizers Organic Blood Meal – 12-0-0, 0.5 lb

#7

7. TPS Vegetable Fertilizer

• Form: Liquid

Best for: For Leafy Vegetable Gardens.

Why it ranks #7: This 8-ounce liquid is formulated for vegetables, leafy greens, and herbs, with stated support for foliage and vegetative growth.

A liquid high-nitrogen formula focused on vegetables makes this an option for gardeners prioritizing foliage during early and leafy growth stages. TPS Nutrients lists leafy greens, herbs, and vegetable plants as suitable uses, in an eight-ounce bottle.

The liquid form distinguishes this eight-ounce fertilizer from granular urea and blood meal, making it a fit for buyers who prefer liquid plant nutrition. Its high-nitrogen emphasis supports lush foliage and vegetative development, while the listed crop scope—leafy greens, herbs, and vegetable plants—keeps its role garden-focused. The product description also frames nitrogen as important during early development, helping gardeners match the fertilizer to a plant’s leafy growth phase.

Skip it if you need fertilizer explicitly listed for turf; Simple Lawn Solutions Maximum Green & Growth 28-0-0 is a lawn food spray.

Choose this liquid for vegetable gardeners prioritizing leafy growth in greens, herbs, and other listed crops, especially during early development. Its stated scope is garden vegetables, so lawn-focused buyers should look for a product specifically listed for turf.

Listed on Amazon as: High Nitrogen Vegetable Fertilizer – Promotes Lush Growth, 8 oz

#8

8. SoilMoist NitroGreen

• Weight: 14 oz
• Form: Liquid

Best for: For Organic Vegetable and Herb Feeding.

Why it ranks #8: The 13-0-0 liquid is described as 100% organic and intended for vegetables, herbs, and all plants, though the listed container is 14 ounces.

A 13-0-0 formula labeled 100% organic gives this liquid fertilizer a concentrated nitrogen focus for leafy growth and strong stems. The 14-ounce container is listed for vegetables, herbs, and all plants, supporting buyers seeking a compact organic option.

The 13-0-0 analysis keeps the formula focused on nitrogen, which the product connects to leafy growth and strong stems. Its liquid form distinguishes it from organic blood meal powders and granules, while the stated suitability for vegetables, herbs, and all plants allows use beyond one crop category. The 14-ounce container is described as supporting multiple feedings. Together, these details suit buyers seeking organic liquid nutrition, although no coverage area or application interval is supplied.

Skip it if you need a lawn spray with a stated coverage area; Simple Lawn Solutions Maximum Green & Growth 28-0-0 includes an attached sprayer.

Choose this for organic liquid nitrogen support on vegetables, herbs, and other plants, with leafy growth and strong stems as priorities. Its 14-ounce supply supports multiple feedings, but the supplied details do not state coverage or timing.

Listed on Amazon as: SoilMoist NitroGreen 100% Organic Fertilizer 14-oz High Nitrogen 13-0-0 for Plant Vegetable Growth

#9

9. TPS Nitrogen Fertilizer

• Weight: 8 oz
• Form: Liquid

Best for: For Liquid Nitrogen Across Gardens.

Why it ranks #9: This 8-ounce liquid supports green leaves and growth across lawns, gardens, crops, and outdoor plants, but its listing gives no NPK ratio.

An eight-ounce liquid nitrogen supplement spans lawns, gardens, crops, vegetables, turf, and outdoor plants, giving this TPS Nutrients formula broader stated use than a vegetable-only feed. Its stated focus is supporting green leaves, foliage, and steady plant development.

The liquid format gives buyers an alternative to granular nitrogen fertilizers, while the product’s listed applications cover lawn, garden, crops, vegetables, turf, and outdoor plants. That range may suit someone seeking one nitrogen supplement across multiple outdoor plantings. Its stated benefits center on green leaves, lush foliage, and steady growth rather than a specialized crop target. At eight ounces, it is a compact supply; the supplied details do not specify a coverage area or application interval.

Skip it if you want a spray bottle with a stated lawn coverage area; Simple Lawn Solutions Maximum Green & Growth covers up to 3,200 square feet.

This suits buyers wanting liquid nitrogen support across varied outdoor plants, including turf and vegetables, with foliage and steady growth as priorities. The supplied information does not give coverage or timing, so it offers less application planning detail.

Listed on Amazon as: Nitrogen for Plants – Liquid Fertilizer for Deep Green Growth, 8 oz

#10

10. Yardi Brassicas and Greens

• Weight: 2 lb
• Form: Liquid

Best for: For Brassicas, Greens, and Herbs.

Why it ranks #10: Its 8-3-3 liquid targets leafy vegetables, herbs, and brassicas, but its stated nitrogen ratio is lower than the other quantified options.

A targeted 8-3-3 formula with essential micronutrients focuses this liquid plant food on brassicas, greens, herbs, and other leafy plants. Its nitrogen-forward nutrition is intended to sustain leafy growth, vibrant color, and plant development across the season.

The 8-3-3 NPK profile puts nitrogen ahead of phosphorus and potassium, aligning with the product’s emphasis on leaves, greens, and brassicas. Essential micronutrients are also listed, alongside goals of vigorous development and rich color. As a liquid fertilizer, it offers a different form from blood meal and granular urea. Its 32-ounce bottle and stated seasonal use suit gardeners feeding leafy crops over time, though the supplied details do not specify an application rate or coverage area.

Skip it if you need a stated square-foot coverage figure for lawn feeding; Simple Lawn Solutions Maximum Green & Growth covers up to 3,200 square feet.

This fits gardeners feeding brassicas, greens, herbs, and other leafy plants who want a liquid 8-3-3 formula with micronutrients. Its crop focus is specific, and the supplied product details leave application rate and coverage unstated.

Listed on Amazon as: YARDi Brassicas & Greens Plant Food 8-3-3 Outdoor Fertilizer 32 oz