Best Nitrogen Pellets For Plants: Urea and Organic Picks

#1 · Best Overall

1. The Grow Co Urea

• Weight: 5 lb
• Form: Granules

Best for: Greener lawns and leafy crops.

Why it ranks #1: Its 5-pound, 46-0-0 granular formula is explicitly suited to grass, vegetables, fruits, and flowers, giving plant growers a versatile concentrated option.

The Grow Co's 46-0-0 urea targets greener color alongside rapid, lush growth, making it a nitrogen-focused choice for lawns and edible gardens. Its five-pound granule package is aimed at grass, vegetables, fruits, and flowers, with additional claims for leafy growth and larger blooms and yields.

The 46-0-0 ratio supplies a high-nitrogen option for buyers addressing nitrogen deficiency, while the product information connects nitrogen support with bigger plants and greener leafy growth. Its stated uses span grass, vegetables, fruits, and flowers, so one fertilizer can serve several garden areas. The five-pound granule format gives gardeners a substantial quantity for those uses, though the supplied directions do not provide a specific application rate; follow product guidance rather than assuming a dose.

Skip it if you need a stated per-area urea rate; OULLYY Urea Fertilizer specifies one-half pound per 100 square feet.

Choose The Grow Co if your priorities are nitrogen support and greener growth across lawn and garden plants. Buyers who need a supplied application rate should weigh that limitation before planning treatment.

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

#2 · Indoor-Outdoor Pick

2. Cz Garden Supply Urea

• Weight: 0.1 milligrams
• Form: Granules

Best for: Tie-dye and garden users.

Why it ranks #2: This 5-pound, water-soluble 46-0-0 urea is listed for indoor and outdoor flowers, lawns, and garden vegetables, with resealable packaging.

Water-soluble 46-0-0 urea pairs high-purity nitrogen with a second use for tie-dye and batik projects. Cz Garden Supply offers granules for indoor and outdoor flowers, lawns, and vegetables, while the resealable, heavy-duty five-pound package helps keep the remaining fertilizer contained between garden applications.

The 46-0-0 analysis makes this a concentrated nitrogen option for gardeners seeking leafy growth across flowers, lawns, and vegetables. Its water-soluble form supports use with wet or dry soil, and the listed directions suggest applications typically every four to six weeks. The resealable, easy-pour package is practical for repeated use and storage; its tie-dye and batik application also gives it a non-garden role. Follow fertilizer safety precautions and the package directions when applying.

Skip it if you want an organic nitrogen source; True Organic Blood Meal is specifically described as an all-natural fertilizer with organic inputs.

Choose Cz Garden Supply if you want concentrated urea for mixed indoor and outdoor plantings, plus a tie-dye use. Its directions call for regular applications, so account for that schedule and follow the stated soil-use guidance.

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

#3 · Smallest Package

3. OULLYY Urea

• Weight: 14.4 oz
• Form: Granules

Best for: Measured small-area applications.

Why it ranks #3: Its compact 14.4-ounce package contains granular urea with at least 46.0% nitrogen, and directions specify application to garden soil.

A stated soil rate of one-half pound per 100 square feet gives OULLYY's 46.0% minimum-nitrogen urea a concrete application guide. Its 0.9-pound granule package suits buyers treating a defined area, with directions to work the fertilizer into the top inch of soil and water thoroughly afterward.

The listed rate of one-half pound, or three-quarters cup, per 100 square feet helps gardeners measure an application against a known plot size. Working the granules into the top inch of soil and watering thoroughly provides a clear sequence for use. The directions call for repeating every seven weeks, which sets a maintenance rhythm. With 46.0% minimum nitrogen and water-soluble urea, this is a focused nitrogen source for indoor or outdoor flowers, lawns, and garden plants.

Skip it if you need organic blood meal for heavy-feeding leafy crops; Down To Earth Blood Meal 12-0-0 is OMRI Listed.

OULLYY fits gardeners who want a small quantity of high-nitrogen urea and a defined per-area routine. Its listed application rate makes plot size important, particularly if you plan to repeat treatment every seven weeks.

Listed on Amazon as: Urea Fertilizer 46.0% Minimum Nitrogen Commercial Grade 99+% Purity Plant Food for Indoor/Outdoor Flowers and Gardens (0.9 lbs)

#4 · High-Nitrogen Formula

4. Easy Peasy Urea

• Form: Granules

Best for: Concentrated nitrogen for active growth.

Why it ranks #4: The listed 46-0-0 urea granules supply concentrated nitrogen for lawns, landscapes, and garden areas, though package weight is not specified in the data.

Easy Peasy's 46-0-0 urea is presented as fast-acting nitrogen for active growth, with claims focused on leaf development and consistent green color. The granular fertilizer is intended for lawns, landscapes, and garden areas, giving nitrogen-focused buyers a single product for several planting contexts.

The high-concentration 46-0-0 analysis supplies nitrogen for plant growth, while the product description links it to chlorophyll, leaf development, and green color. Its listed uses include lawns, landscapes, and garden areas, making it relevant to more than one type of planting. Directions say to measure according to the size of the area or plants and spread evenly over soil, but refer buyers to the packaging for amounts; that package guidance matters when planning an application.

Skip it if you need a published per-area application rate; OULLYY Urea Fertilizer gives a rate of one-half pound per 100 square feet.

Easy Peasy fits gardeners seeking concentrated urea for lawns, landscapes, and garden areas during active growth. Because its supplied directions defer amounts to the packaging, make that application guidance part of your decision.

Listed on Amazon as: UREA Fertilizer 46-0-0 | nitrogen granular Fertilizer | NITROGEN Plant Food

#5 · Area-Coverage Pick

5. True Organic Blood Meal

• Weight: 3 lb
• Form: Granules

Best for: Organic leafy-crop gardeners.

Why it ranks #5: This 3-pound organic blood meal covers 104 square feet and is described for heavy-feeding plants, including corn, spinach, broccoli, and leafy greens.

Blood meal supplies the nitrogen focus in True Organic's fertilizer for rapid vegetative growth, with heavy-feeding crops such as corn, spinach, broccoli, and leafy greens specifically named. The three-pound granule bag is listed to cover 104 square feet, helping gardeners relate the package to a defined planting area.

The blood-meal ingredient and emphasis on rapid vegetative growth make this a targeted choice for crops grown for leaves and other heavy feeders. True Organic also states that its plant foods benefit soil by increasing microbial activity and improving soil health, adding a soil-focused consideration beyond nitrogen. The three-pound bag's stated 104-square-foot coverage helps with area planning, although the supplied directions are marked not applicable. It is an organic-input option, and the safety information says not to ingest it.

Skip it if you want an OMRI Listed blood meal with broadcast or hand-application guidance; Down To Earth Blood Meal supplies both.

True Organic suits gardeners prioritizing blood meal for leafy, heavy-feeding crops and a stated coverage area. Its supplied directions do not specify application steps, so that information is a meaningful fit consideration.

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

#6

6. Down To Earth Blood Meal

• Weight: 8.6 oz
• Form: Powder

Best for: Small organic garden plots.

Why it ranks #6: Its OMRI-listed 12-0-0 blood meal targets leafy growth and heavy feeders; the 0.5-pound package suits small gardens, containers, or trial use.

OMRI Listed blood meal with a 12-0-0 analysis gives Down To Earth a clear organic nitrogen role for leafy crops and early growth. Its half-pound package is particularly suited to small gardens, containers, or targeted use, and the product is a dried meal intended for soil rather than water-soluble feeding.

The 12-0-0 analysis and fast-acting nitrogen positioning target deficiency correction and vigorous leafy growth in crops such as corn, broccoli, and leafy greens. This dried meal is not water soluble; it can be broadcast or hand applied, mixed into the soil surface or compost, and watered in. Those instructions suit soil-based workflows rather than liquid feeding. The half-pound size is positioned for small gardens and containers, while the stated rate is two to four pounds per 100 square feet, so measure carefully.

Skip it if you need water-soluble urea for a lawn or garden; Cz Garden Supply Urea 46-0-0 is water soluble.

Choose Down To Earth for small organic soil applications where blood meal's nitrogen profile fits leafy crops or early growth. It is not a liquid-feed option, and its stated per-area rate calls for careful measuring.

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

#7

7. Whitney Farms Blood Meal

• Form: Granules

Best for: Organic raised-bed heavy feeders.

Why it ranks #7: This OMRI-listed 12-0-0 blood meal is intended for vegetables, flowers, bulbs, and shrubs, offering an organic nitrogen option for garden beds.

Whitney Farms combines OMRI-listed blood meal with a 12-0-0 analysis for nitrogen support in flowers, vegetables, bulbs, and shrubs. Its product information specifically calls out heavy feeders and nitrogen-depleted soils, making it a targeted option for garden beds and raised beds rather than a general-purpose lawn fertilizer.

The 12-0-0 analysis gives this blood meal a clear nitrogen role, while its listed uses cover flowers, vegetables, bulbs, and shrubs in garden or raised beds. The product description connects its nitrogen supplement with shoot and flower growth and replenishing nitrogen-depleted soil. That focus is useful when choosing for heavy-feeding plants, though the supplied information does not include an application rate or method. California consumers are also given a Proposition 65 warning, which is relevant to handling and purchase decisions.

Skip it if you need blood meal with stated broadcast or hand-application directions; Down To Earth Blood Meal provides those soil-use steps.

Whitney Farms suits organic gardeners addressing nitrogen needs in raised or garden beds with heavy-feeding crops. Its supplied facts do not give application steps, so seek the package guidance before planning treatment.

Listed on Amazon as: Organic Blood Meal 12-0-0, 3 lb.

#8

8. Espoma Alfalfa Meal

• Weight: 3 lb
• Form: Granules

Best for: Organic rose and flower beds.

Why it ranks #8: Its 2-0-2 alfalfa meal supplies nitrogen and potassium for roses, flowers, vegetables, trees, and shrubs, but has substantially less nitrogen than urea.

Espoma's alfalfa meal provides both nitrogen and potassium, distinguishing it from a nitrogen-only fertilizer for roses, flowers, vegetables, trees, and shrubs. The three-pound organic gardening product can be sprinkled onto soil or mixed with water to make fertilizer tea, offering two stated application approaches.

The alfalfa meal is described as 100% all-natural, with no fillers or additives, and provides long-lasting nitrogen and potassium. That combination suits gardeners who want both nutrients for the listed roses, flowers, vegetables, trees, and shrubs. Applying it directly to soil offers a simple bed-treatment workflow, while mixing it with water creates a fertilizer tea. Its organic-input registration supports organic gardening use; the supplied information does not state a per-area application rate, so follow package directions.

Skip it if you need a 12-0-0 blood meal for heavy-feeding leafy crops; Whitney Farms Organic Blood Meal is listed for that use.

Espoma fits organic gardeners who want alfalfa meal for mixed ornamental and edible plantings, with soil or tea application options. The product provides potassium alongside nitrogen, so it is not a nitrogen-only choice.

Listed on Amazon as: Espoma Organic Alfalfa Meal Fertilizer 2-0-2. All-Natural Plant Food Source of Nitrogen and Potassium for Organic Gardening. Use for Roses, Flowers, Veggies, Trees & Shrubs. 3 lb. Bag.

#9

9. Milorganite Fertilizer

• Weight: 5 lb
• Form: Granules

Best for: Low-burn lawn and garden feeding.

Why it ranks #9: The 6-4-0 slow-release formula suits lawns, flowers, and gardens, but provides less nitrogen than the concentrated urea and blood meal choices.

Milorganite's 6-4-0 formula combines slow-release nitrogen with iron, offering lawn buyers gradual feeding and green color support. The five-pound granular fertilizer is also listed for flowers and gardens, while its virtually salt-free formulation is described as helping avoid burning lawns, trees, shrubs, and plants.

The slow-release nitrogen supports a feeding interval of every eight to ten weeks during the grass-growing season, according to the supplied directions. Its iron is described as promoting deep green lawn color without staining, adding a distinct benefit beyond nitrogen. The product is also listed for flowers and gardens, and its virtually salt-free formulation is presented as reducing burn concerns even in hot or dry conditions. It has an earthy aroma when first applied; rain or watering can help reduce it.

Skip it if you want a higher-nitrogen 32-0-0 lawn fertilizer with stated 6,000-square-foot coverage; The Andersons Professional Pure Nitrogen provides that option.

Milorganite suits lawn and garden users seeking slow-release feeding with iron and a stated eight-to-ten-week lawn schedule. Consider its initial earthy aroma, and note that its 6-4-0 analysis differs from nitrogen-only options.

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

#10

10. The Andersons Lawn Fertilizer

• Weight: 18 lb
• Form: Granules

Best for: Large turf nitrogen programs.

Why it ranks #10: Its 32-0-0 formula covers 6,000 square feet and combines quick- and slow-release nitrogen, but its stated focus is lawns rather than garden plants.

The Andersons pairs quick- and slow-release nitrogen in an 18-pound 32-0-0 fertilizer that covers 6,000 square feet. The lawn-focused product targets nitrogen deficiencies, can be used any time during the growing season, and has small particles intended to support complete, uniform coverage across turf.

Combining quick- and slow-release nitrogen gives lawn managers two release characteristics in one granular application, while the stated 6,000-square-foot coverage helps plan use across larger turf areas. Small particle size is specified for complete, uniform coverage, and the product is listed as safe for all turf types. Its 32-0-0 analysis and nitrogen-deficiency focus make it a lawn-specific fit; the supplied information says it can be used any time during the growing season, rather than naming a narrower window.

Skip it if you need nitrogen for flowers and vegetables as well as lawn; The Grow Co Urea 46-0-0 lists those garden uses.

The Andersons fits turf managers treating nitrogen-deficient lawns who want stated coverage and mixed release characteristics. Its listed use is lawn-focused, so choose it with that application boundary in mind.

Listed on Amazon as: The Andersons Professional Pure Nitrogen 32-0-0 Fertilizer – 18lbs Covers 6,000 sqft.