Best Fertilizer With Nitrogen for Lawns, Gardens, and Plants

#1 · Best Overall

1. Cz Garden Supply Urea

• Weight: 0.1 milligrams
• Form: Granules

Best for: Water-soluble urea for gardens.

Why it ranks #1: Its 46-0-0 water-soluble granules are described for indoor and outdoor flowers, lawns, vegetables, fruit, and citrus trees.

A 46-0-0 urea formula combines water solubility with a resealable, easy-pour 5-pound pouch. It supports nitrogen feeding for indoor flowers, lawns, and vegetables, while the listing also notes use of urea for tie-dye and batik projects.

The water-soluble granules give this urea a stated route for dissolving, while the 46-0-0 analysis identifies it as a high-nitrogen fertilizer. Its listed indoor and outdoor uses span flowers, lawns, and vegetables, so it can suit mixed garden needs. The resealable, easy-pour packaging helps manage the remaining granules between uses. Directions specify 5 pounds per area as recommended, typically every four to six weeks, and say to apply to wet or dry soil as directed.

Skip it if you want a ready-to-spray lawn product with stated coverage; Simple Lawn Solutions Maximum Green & Growth 28-0-0 includes an attached sprayer for up to 3,200 square feet.

This suits gardeners seeking high-nitrogen urea for flowers, lawns, or vegetables, with a resealable pouch for storing granules. The directions call for applying by recommended area, so follow the product guidance for your site.

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 · Best Lawn Sprayer

2. Simple Lawn Solutions 28-0-0

• Weight: 2 lb
• Form: Liquid

Best for: Sprayed nitrogen feed for lawns.

Why it ranks #2: 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 the 28-0-0 liquid lawn food at the product’s stated ratio and covers up to 3,200 square feet. Its 70% quick-release and 30% slow-release nitrogen blend pairs a quick nutrient response with continued feeding between applications.

The attached sprayer simplifies lawn application by dispensing the product at its stated ratio, and coverage of up to 3,200 square feet helps plan a treatment area. The 28-0-0 analysis supplies 28% nitrogen, while the quick- and slow-release split pairs a fast response with continued feeding. Listed for any grass type and spring and summer use, it is a lawn-specific choice rather than an all-purpose garden fertilizer.

Skip it if you need fall feeding to prepare roots for winter; Scotts Turf Builder WinterGuard Fall Lawn Food is specifically for fall lawn application.

This is a practical match for lawn owners seeking spring or summer nitrogen feeding across any grass type, with sprayer application and stated coverage. Its seasonal lawn focus is the key boundary for other plant or fall-feeding needs.

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)

#3 · Best Organic Nitrogen

3. True Organic Blood Meal

• Weight: 3 lb
• Form: Granules

Best for: Organic blood meal for leafy crops.

Why it ranks #3: This 3-pound organic blood meal is high in nitrogen and specifically intended to encourage vegetative growth in heavy-feeding crops and leafy greens.

Blood meal supplies a high-nitrogen, organic-input option for rapid vegetative growth, with heavy feeders such as corn, spinach, broccoli, and leafy greens specifically identified. The 3-pound bag covers 104 square feet, giving gardeners a stated area for planning application.

The blood meal ingredient and high nitrogen content align this product with leafy growth needs, especially for the listed heavy feeders. Its stated coverage of 104 square feet per 3-pound bag helps gardeners gauge how much area the package addresses. The supplied facts also say plant foods can increase microbial activity and improve soil health, connecting feeding with soil benefits. Directions are listed as not applicable, so application instructions are not provided in the supplied details.

Skip it if you want a non-blood-meal nitrogen product; TPS NUTRIENTS Nitrogen for Plants is a liquid nitrogen fertilizer for lawns, gardens, and crops.

Pick this for organic-input nitrogen feeding of heavy-feeding leafy crops when its stated coverage fits your garden. The blood meal ingredient is an important fit consideration, and the supplied details do not provide application directions.

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

#4

4. The Grow Co Urea

• Weight: 5 lb
• Form: Granules

Best for: High-nitrogen urea for mixed gardens.

Why it ranks #4: Its 5-pound 46-0-0 granules offer a clearly stated high-nitrogen formula for grass, vegetables, fruits, and flowers.

The 46-0-0 urea analysis supplies concentrated nitrogen for grass, vegetables, fruits, and flowers, with greener color and lush growth among its stated goals. Its 5-pound granule format suits shoppers looking for a nitrogen-focused plant food across several garden categories.

The 46-0-0 analysis makes nitrogen the clear focus, and the listed uses span lawn grass, vegetables, fruit, and flowers. The product description also connects nitrogen supplementation with greener leafy growth and larger, longer blooms, so it speaks to both foliage and flowering goals. Its 5-pound granular form provides a solid package for garden use, but the supplied information does not specify an application rate, watering directions, or coverage area.

Skip it if you need an attached sprayer and defined lawn coverage; Simple Lawn Solutions Maximum Green & Growth 28-0-0 provides both for lawn applications.

Choose this for nitrogen-focused feeding across grass, vegetables, fruit, and flowers when granules suit your routine. The 5-pound package is straightforward, but the supplied facts leave application rate and coverage to other product guidance.

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

#5 · Best Liquid Plant Food

5. TPS Nutrients High Nitrogen

• Form: Liquid

Best for: Liquid nitrogen for indoor and outdoor plants.

Why it ranks #5: The 8-ounce liquid is explicitly labeled high nitrogen and is listed for houseplants, lawns, vegetables, and trees, indoors or outdoors.

A high-nitrogen liquid formula targets lush foliage and vigorous growth across houseplants, lawns, vegetables, and trees. Its stated indoor-and-outdoor suitability gives growers a single listed use range for different plant settings, while the 8-ounce size keeps the package compact.

The liquid form can suit growers who prefer a liquid plant food, and the high-nitrogen formula is described as supporting greener leaves, strong stems, and vitality during plant growth. Its listed compatibility spans houseplants, lawns, vegetables, and trees, making the intended scope broader than lawn-only feeding. At 8 ounces, the bottle is a modest package size; the supplied information does not specify dilution, application rate, or coverage, so those details cannot guide planning here.

Skip it if you need measured lawn coverage and an attached sprayer; Simple Lawn Solutions Maximum Green & Growth 28-0-0 covers up to 3,200 square feet with its sprayer.

This fits growers wanting liquid nitrogen support for houseplants alongside outdoor plants, especially where foliage and stem growth are priorities. Its 8-ounce package and unspecified application details are boundaries for larger or carefully measured jobs.

Listed on Amazon as: High Nitrogen Fertilizer – Liquid Plant Food for Rapid Growth, 8 oz

#6

6. TPS Nutrients Nitrogen

• Weight: 8 oz
• Form: Liquid

Best for: Liquid nitrogen for mixed plantings.

Why it ranks #6: This 8-ounce liquid is formulated as nitrogen support for lawns, gardens, crops, vegetables, turf, and outdoor plants, though no ratio is listed.

An 8-ounce liquid formula supplies nitrogen to support green leaves and steady development across lawns, gardens, and crops. That broad stated plant suitability makes it an option for growers who want nitrogen support for vegetables, turf, and outdoor plants from one product.

The liquid form distinguishes this from the granules in this roundup, while the stated support for lawns, gardens, and crops gives it a broad range of intended uses. Its nitrogen-focused formula supports leaf development and overall plant growth, making it relevant when foliage and steady development are the goal. The 8-ounce size is a compact quantity to keep on hand, though the supplied information does not specify an application rate or coverage area.

Skip it if you need a lawn sprayer and stated coverage; Simple Lawn Solutions Maximum Green & Growth 28-0-0 includes an attached sprayer and covers up to 3,200 square feet.

Choose this for nitrogen support across vegetables, turf, and outdoor plants when liquid form suits your routine. The 8-ounce bottle is the relevant boundary; the supplied details do not state coverage or application rate.

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

#7

7. RAW Nitrogen Powder

• Weight: 2.08 oz
• Form: Powder

Best for: Water-soluble nitrogen for vegetative growth.

Why it ranks #7: The 2-ounce water-soluble powder specifies 20% ammonium nitrogen and supports leaf and stem development during vegetative growth.

A water-soluble powder with 20% ammonium nitrogen targets leaf and stem development during vegetative growth. RAW Nitrogen is intended to integrate into feeding programs, giving growers a targeted nitrogen supplement in a compact 2-ounce package.

The water-soluble formula can integrate into a feeding program, while its 20% ammonium nitrogen content identifies the stated nitrogen source and concentration. The product focuses on leaf and stem development during vegetative growth, making it relevant when that growth stage is the priority. Its powder form and 2-ounce size suit a targeted supplement role, though supplied details do not state an application rate, coverage, or preparation directions.

Skip it if you need a larger package for lawn coverage; Simple Lawn Solutions Maximum Green & Growth 28-0-0 covers up to 3,200 square feet with an attached sprayer.

Choose RAW Nitrogen for a targeted, water-soluble supplement during vegetative growth, especially when leaf and stem development are the goal. The 2-ounce quantity and unspecified application directions limit how precisely a buyer can plan broader use.

Listed on Amazon as: RAW Nitrogen Fertilizer – Water Soluble, Fertilizer for Vegetables, 2 oz

#8 · Best Slow-Release Blend

8. Milorganite 6-4-0

• Weight: 5 lb
• Form: Granules

Best for: Slow-release nitrogen for lawns and gardens.

Why it ranks #8: Its 6-4-0 granules provide slow-release nitrogen for lawns, flowers, and gardens; the listed schedule recommends feeding every 8–10 weeks.

Milorganite pairs slow-release nitrogen in a 6-4-0 formula with iron for deep green color without staining, and its listing spans lawns, flowers, and gardens. The product also states that virtually no salts help avoid burning lawns and other plants.

The slow-release nitrogen and 6-4-0 analysis identify a measured nutrient approach for lawns, flowers, and gardens. Its iron is described as supporting a deep, vibrant green without staining, while the virtually salt-free claim is tied to avoiding burn on lawns, trees, shrubs, and plants, including in hot or dry conditions. The listed feeding rhythm is every 8–10 weeks during grass-growing season or the holiday schedule. Newly applied granules have an earthy aroma that should dissipate within days.

Skip it if you want a fast-release lawn response with a spray applicator; Simple Lawn Solutions Maximum Green & Growth 28-0-0 includes quick-release nitrogen and an attached sprayer.

Select Milorganite for slow-release feeding across lawns and garden plants when iron-supported green color and the stated low-salt profile matter. Account for the temporary earthy aroma, especially near frequently used outdoor areas.

Listed on Amazon as: Milorganite All-Purpose Eco-Friendly Slow-Release Nitrogen 6-4-0 Fertilizer, 5 Pound Bag – for Lawns, Flowers and Gardens

#9

9. Cz Garden Supply DAP

• Weight: 4 lb
• Form: Granules

Best for: Nitrogen and phosphorus for blooms.

Why it ranks #9: This 18-46-0 granulated DAP supplies nitrogen alongside substantial phosphorus, so it suits buyers seeking both nutrients rather than nitrogen alone.

The 18-46-0 DAP analysis supplies both nitrogen and phosphorus, making this a fit for growers seeking more than nitrogen alone. Cz Garden Supply lists it for indoor and outdoor flowers, lawns, and vegetables, and connects it with vigorous growth and bigger blooms.

The 18-46-0 analysis combines nitrogen with a high phosphorus figure, so it is not a nitrogen-only option. The listed uses include flowers, lawns, vegetables, shrubs, and trees, giving the product a broad garden and landscape scope. Its resealable, easy-pour 4-pound pouch helps dispense a needed amount and store the remainder for future use. That packaging supports repeat handling, while the added phosphorus is the key nutrient-profile consideration for buyers comparing nitrogen-focused fertilizers.

Skip it if you need nitrogen without a substantial phosphorus component; The Grow Co 5 lb. Urea Fertilizer 46-0-0 is the nitrogen-focused alternative.

Choose this DAP fertilizer when both nitrogen and phosphorus suit your indoor or outdoor planting, including flowers and vegetables. The 18-46-0 profile is the important boundary if your goal is nitrogen-only feeding.

Listed on Amazon as: 18-46-0 DAP Fertilizer – Made in USA – Nitrogen and Phosphorus Plant Food for Indoor/Outdoor Plants & Flower Gardens – Promotes Vigorous Growth and Big Blooms!

#10

10. Scotts Turf Builder WinterGuard

• Weight: 8 oz
• Form: Granules

Best for: Fall lawn food for winter preparation.

Why it ranks #10: This is a fall lawn food for root development and winter preparation, but its supplied product details do not state a nitrogen ratio.

Fall application is the defining use of Scotts Turf Builder WinterGuard: it supports deep grass roots for a better lawn next spring while helping lawns recover from summer heat, drought, and activity. Its stated use covers any grass type.

Applying this granule fertilizer in fall links the timing to its stated purpose: building strong, deep roots before winter and supporting next spring’s lawn. The product also provides nutrients for recovery from summer heat, drought, and regular activity. It can be applied to a wet or dry lawn, and the supplied directions provide Scotts spreader settings for broadcast, rotary, and drop spreaders. Those details make the application routine more specific, but the use remains seasonal and lawn-focused.

Skip it if you need nitrogen feeding in spring or summer; Simple Lawn Solutions Maximum Green & Growth 28-0-0 is listed for those seasons and any grass type.

This fits homeowners preparing a lawn in fall for winter and next spring, particularly when summer stress recovery is also a concern. Its seasonal lawn focus makes it a poor match for general plant feeding.

Listed on Amazon as: Scotts Turf Builder WinterGuard Fall Lawn Food, 10 lbs.