Nitrogen Boosters(55)
Uses item details. Price when purchased online
N-CARE - Long lasting green Nitrogen for plant growth, Green Nitrification Inhibitor $22.75

Sponsored
$2275
current price $22.75N-CARE - Long lasting green Nitrogen for plant growth, Green Nitrification Inhibitor
3.7 out of 5 stars
Best seller Scotts Green Max Lawn Food, Fertilizer Plus Iron Supplement, 5,000 sq. ft., 16.67 lbs. From $33.24
Best seller

Sponsored
From$3324
Scotts Green Max Lawn Food, Fertilizer Plus Iron Supplement, 5,000 sq. ft., 16.67 lbs.
4.3 out of 5 stars
Supply Solutions Urea Nitrogen Organic Indoor Outdoor Lawn Fertilizer - Plant Food (10 Pounds) From $24.88

Sponsored
From$2488
Supply Solutions Urea Nitrogen Organic Indoor Outdoor Lawn Fertilizer - Plant Food (10 Pounds)
4.5 out of 5 stars
Big Foot Probiotic Root Boost Water Soluble Powder For Established Plants and Transplants - GROW ROOT SIZE, Increase Nitrogen, Grow New Plants from Cuttings, Pea Inoculant - 2 Ounces $12.58

Sponsored
$1258
current price $12.58Big Foot Probiotic Root Boost Water Soluble Powder For Established Plants and Transplants - GROW ROOT SIZE, Increase Nitrogen, Grow New Plants from Cuttings, Pea Inoculant - 2 Ounces
Milorganite Slow-Release Nitrogen Fertilizer - Natural, Granules - 32 lb Outdoor & Indoor Plant Use, Easy Application $36.97

$3697
current price $36.97Milorganite Slow-Release Nitrogen Fertilizer - Natural, Granules - 32 lb Outdoor & Indoor Plant Use, Easy Application
4.7 out of 5 stars
House & Garden HGNIB01L Nitrogen Boost Fertilizer, 1 L $59.95

$5995
current price $59.95House & Garden HGNIB01L Nitrogen Boost Fertilizer, 1 L
PetraMax Liquid Nitrogen Fertilizer Spray for Lawns and Plants, 32 Oz From $29.86

2 options
Available in additional 2 optionsFrom$2986
PetraMax Liquid Nitrogen Fertilizer Spray for Lawns and Plants, 32 Oz
4.1 out of 5 stars
Milorganite Organic Nitrogen All Purpose Long Lasting Fertilizer, 6-4-0, 5 Lb. $16.63

$1663
current price $16.63Milorganite Organic Nitrogen All Purpose Long Lasting Fertilizer, 6-4-0, 5 Lb.
4.6 out of 5 stars
House & Garden HGNIB01L Nitrogen Boost Fertilizer, 1 L $59.95

$5995
current price $59.95House & Garden HGNIB01L Nitrogen Boost Fertilizer, 1 L
Big Foot Probiotic Root Boost Water Soluble Powder For Established Plants and Transplants - GROW ROOT SIZE, Increase Nitrogen, Grow New Plants from Cuttings, Pea Inoculant - 2 Ounces $12.58

$1258
current price $12.58Big Foot Probiotic Root Boost Water Soluble Powder For Established Plants and Transplants - GROW ROOT SIZE, Increase Nitrogen, Grow New Plants from Cuttings, Pea Inoculant - 2 Ounces
Biogrowth Vivid Organic Plant Food & Fertilizer - Indoor & Outdoor Flowers, Lawns and Ornamentals, 8.45oz (1-0-1) Ultra Concentrated Liquid Bloom Booster with Enzyme Blend $14.99 Was $18.99

Sponsored
Now$1499
current price Now $14.99, Was $18.99$18.99
Biogrowth Vivid Organic Plant Food & Fertilizer - Indoor & Outdoor Flowers, Lawns and Ornamentals, 8.45oz (1-0-1) Ultra Concentrated Liquid Bloom Booster with Enzyme Blend
4.6 out of 5 stars
Supply Solutions 10-10-10 Complete Lawn & Garden Granular Fertilizer with Micronutrients – Balanced NPK Plant Food for Soil Health, Blooms & Roots – Safe for Vegetables, Fruits, Lawns (10lbs) $28.79

Sponsored
$2879
current price $28.79Supply Solutions 10-10-10 Complete Lawn & Garden Granular Fertilizer with Micronutrients – Balanced NPK Plant Food for Soil Health, Blooms & Roots – Safe for Vegetables, Fruits, Lawns (10lbs)
4.2 out of 5 stars
House and Garden Van De Zwaan Nitrogen Boost 1 Liter H&G $59.95

$5995
current price $59.95House and Garden Van De Zwaan Nitrogen Boost 1 Liter H&G
Chlorophyll Spray for Houseplants, 3.4 fl oz Urea Nitrogen Fertilizer to Treat Yellow Leaves, Potted Vegetable Nutrient Booster $4.79

$479
current price $4.79Chlorophyll Spray for Houseplants, 3.4 fl oz Urea Nitrogen Fertilizer to Treat Yellow Leaves, Potted Vegetable Nutrient Booster
SoilMoist NitroGreen Water Soluble Organic Fertilizer, All Plants and Vegetables $25.99

$2599
current price $25.99SoilMoist NitroGreen Water Soluble Organic Fertilizer, All Plants and Vegetables
Nitrogen Fertilizer 2oz - Plant Nutrient for Deficiency Treatment and Enhanced Growth in Vegetative Stage - Indoor, Outdoor, Hydroponic Use 2 Ounce Bag $10.90

$1090
current price $10.90Nitrogen Fertilizer 2oz - Plant Nutrient for Deficiency Treatment and Enhanced Growth in Vegetative Stage - Indoor, Outdoor, Hydroponic Use 2 Ounce Bag
Nitrogen Fertilizer 4oz - Plant Nutrient for Deficiency Treatment and Enhanced Growth in Vegetative Stage - Indoor, Outdoor, Hydroponic Use $11.95

$1195
current price $11.95Nitrogen Fertilizer 4oz - Plant Nutrient for Deficiency Treatment and Enhanced Growth in Vegetative Stage - Indoor, Outdoor, Hydroponic Use
236ml Indoor Flower Food, Liquid Root Booster, Green Growth Drip Fertilizer for HouseHerb, Nitrogen-Rich Liquid Feed for Pothos & Monstera, Easy Pour Bottle $6.16

$616
current price $6.16236ml Indoor Flower Food, Liquid Root Booster, Green Growth Drip Fertilizer for HouseHerb, Nitrogen-Rich Liquid Feed for Pothos & Monstera, Easy Pour Bottle
Big Foot Probiotic Root Boost Water Soluble Powder For Established Plants and Transplants - GROW ROOT SIZE, Increase Nitrogen, Grow New Plants from Cuttings, Pea Inoculant - 5 Ounces $20.49

$2049
current price $20.49Big Foot Probiotic Root Boost Water Soluble Powder For Established Plants and Transplants - GROW ROOT SIZE, Increase Nitrogen, Grow New Plants from Cuttings, Pea Inoculant - 5 Ounces
5 out of 5 stars
Clearance Water Lily Fertilizer Aquatic Plant Food Nutrient Booster for Water Gardens, Rich Nitrogen Phosphorus Potassium Formula, Promotes Blooming Root Growth and Healthy Leaves for Ponds Lotus Plants $5.99 Was $8.99
Clearance

Now$599
current price Now $5.99, Was $8.99$8.99
Water Lily Fertilizer Aquatic Plant Food Nutrient Booster for Water Gardens, Rich Nitrogen Phosphorus Potassium Formula, Promotes Blooming Root Growth and Healthy Leaves for Ponds Lotus Plants
Biogrowth Catalyst Organic Plant Food & Fertilizer - Indoor & Outdoor Fertilizer for Vegetables & Fruits, 8.45oz (1-0-1) Garden Harvest Booster, Concentrated Liquid Enzyme Blend Vitamin $16.99 Was $18.99

Sponsored
Now$1699
current price Now $16.99, Was $18.99$18.99
Biogrowth Catalyst Organic Plant Food & Fertilizer - Indoor & Outdoor Fertilizer for Vegetables & Fruits, 8.45oz (1-0-1) Garden Harvest Booster, Concentrated Liquid Enzyme Blend Vitamin
4.5 out of 5 stars
Triple Super Phosphate 0-40-0 Bulb Booster Fertilizer - 5 Lbs. $19.95

Sponsored
$1995
current price $19.95Triple Super Phosphate 0-40-0 Bulb Booster Fertilizer - 5 Lbs.
2.3 out of 5 stars
Seed Ranch Potassium Nitrate Fertilizer Powder, 99.8% Pure 5 lbs with Plant Growth Nutrients $20.54

$2054
current price $20.54Seed Ranch Potassium Nitrate Fertilizer Powder, 99.8% Pure 5 lbs with Plant Growth Nutrients
4.5 out of 5 stars
Old Cobblers Farm™ Wicked Growth High-Efficiency 46-0-0 Fertilizer - Urea - Fast-Acting Nitrogen Source for Lush Growth in Gardens & Farms -Soluble (5 lbs | 10 lbs | 15 lbs | 20 lbs) (15lbs) From $30.99

4 options
Available in additional 4 optionsFrom$3099
Old Cobblers Farm™ Wicked Growth High-Efficiency 46-0-0 Fertilizer - Urea - Fast-Acting Nitrogen Source for Lush Growth in Gardens & Farms -Soluble (5 lbs | 10 lbs | 15 lbs | 20 lbs) (15lbs)
5 out of 5 stars
Happy Cactus Fertilizer Low Nitrogen Fertilizer for Cactus Plant & Succulents Bloom Booster with Calcium for Vibrant Growth 2-5-5 NPK, 1.5 lbs for Indoor/Outdoor Use $29.99

$2999
current price $29.99Happy Cactus Fertilizer Low Nitrogen Fertilizer for Cactus Plant & Succulents Bloom Booster with Calcium for Vibrant Growth 2-5-5 NPK, 1.5 lbs for Indoor/Outdoor Use
Nitrogen Fertilizer - Plant Nutrient for Deficiency Treatment and Enhanced Growth in Vegetative Stage - Indoor, Outdoor, Hydroponic Use (5 Pounds) From $16.95

4 options
Available in additional 4 optionsFrom$1695
Nitrogen Fertilizer - Plant Nutrient for Deficiency Treatment and Enhanced Growth in Vegetative Stage - Indoor, Outdoor, Hydroponic Use (5 Pounds)
3 out of 5 stars
Humboldts Secret Greenify | 12-0-0 Nitrogen & 6% Iron Liquid Lawn Fertilizer Concentrate | Chelated Iron Supplement for Healthy Grass, Turf, and Garden Growth | 32 Ounce Refill for Healthy Growth From $34.97

3 options
Available in additional 3 optionsFrom$3497
Humboldts Secret Greenify | 12-0-0 Nitrogen & 6% Iron Liquid Lawn Fertilizer Concentrate | Chelated Iron Supplement for Healthy Grass, Turf, and Garden Growth | 32 Ounce Refill for Healthy Growth
4.6 out of 5 stars
Supply Solutions Urea Nitrogen Organic Indoor Outdoor Lawn Fertilizer - Plant Food (5 Pounds) From $24.88

4 options
Available in additional 4 optionsFrom$2488
Supply Solutions Urea Nitrogen Organic Indoor Outdoor Lawn Fertilizer - Plant Food (5 Pounds)
4.5 out of 5 stars
Sunniland 7013451 416 sq. ft. Slow-release Nitrogen Lawn Fertilizer for All Grasses $22.82

$2282
current price $22.82Sunniland 7013451 416 sq. ft. Slow-release Nitrogen Lawn Fertilizer for All Grasses
Ammonium Sulfate 21-0-0 Fertilizer from Plantco with 21% Nitrogen & 24% Sulfur | Ideal for Lawns, Azaleas, Blueberries | Lowers pH in Alkaline Soil (2 lb bag) $17.98

$1798
current price $17.98Ammonium Sulfate 21-0-0 Fertilizer from Plantco with 21% Nitrogen & 24% Sulfur | Ideal for Lawns, Azaleas, Blueberries | Lowers pH in Alkaline Soil (2 lb bag)
5 out of 5 stars
Supply Solutions 25-7-12 Lawn and Turf Fertilizer 15% Slow Release Nitrogen - Supply Nutrients for Lawn Grass and Garden Plants for Greener Look (50lbs) From $18.99

Sponsored
From$1899
Supply Solutions 25-7-12 Lawn and Turf Fertilizer 15% Slow Release Nitrogen - Supply Nutrients for Lawn Grass and Garden Plants for Greener Look (50lbs)
4.3 out of 5 stars
Wondertree Organics Neem Natural Fertilizers, 4 lbs with 2-1-1 NPK, OMRI Listed From $16.89

Sponsored
From$1689
Wondertree Organics Neem Natural Fertilizers, 4 lbs with 2-1-1 NPK, OMRI Listed
4.6 out of 5 stars
Nitrogen Fertilizer 2oz - Plant Nutrient for Deficiency Treatment and Enhanced Growth in Vegetative Stage - Indoor, Outdoor, Hydroponic Use $10.90

$1090
current price $10.90Nitrogen Fertilizer 2oz - Plant Nutrient for Deficiency Treatment and Enhanced Growth in Vegetative Stage - Indoor, Outdoor, Hydroponic Use
Basic Nutrition Stabilized Nitrogen Fertilizer 32-0-3 25 Percent U-Plus, 50 lbs $92.99

$9299
current price $92.99Basic Nutrition Stabilized Nitrogen Fertilizer 32-0-3 25 Percent U-Plus, 50 lbs
ProSolutions 15-0-0 Nitrogen with 6% Iron. 2.5 Gallons $58.95

$5895
current price $58.95ProSolutions 15-0-0 Nitrogen with 6% Iron. 2.5 Gallons
4.5 out of 5 stars
AgChimp 24-0-11 Professional Lawn Maintenance Fertilizer, 16lbs 24% Quick-Release and 30% Slow-Release Nitrogen Blend for Immediate Green-up and Continuous Turf Growth - Covers 5,000 sq ft $43.95

$4395
current price $43.95AgChimp 24-0-11 Professional Lawn Maintenance Fertilizer, 16lbs 24% Quick-Release and 30% Slow-Release Nitrogen Blend for Immediate Green-up and Continuous Turf Growth - Covers 5,000 sq ft
5 out of 5 stars
Plant Growth Enhancer Rooting Liquid Fertilizer With Vitamin Solution, Nitrogen Phosphorus Potassium For Cuttings And Seedlings 50Ml 4.7X1.5X1.5In 0.15Lb $6.22 Was $7.98

Now$622
current price Now $6.22, Was $7.98$7.98
Plant Growth Enhancer Rooting Liquid Fertilizer With Vitamin Solution, Nitrogen Phosphorus Potassium For Cuttings And Seedlings 50Ml 4.7X1.5X1.5In 0.15Lb
YardVibe Rooting Powder for All Plants, Trees, Flowers & Edibles, Mycorrhizal Fungi (100 g/3.53 oz), Plant Nutrition Nitrogen, Phosphorus and Potassium Nutrients, Direct to Root Inoculant $4.79 Was $6.19

Now$479
current price Now $4.79, Was $6.19$6.19
YardVibe Rooting Powder for All Plants, Trees, Flowers & Edibles, Mycorrhizal Fungi (100 g/3.53 oz), Plant Nutrition Nitrogen, Phosphorus and Potassium Nutrients, Direct to Root Inoculant
Nitrogen Fertilizer 16 Ounces - Plant Nutrient for Deficiency Treatment and Enhanced Growth in Vegetative Stage - Indoor, Outdoor, Hydroponic Use (1 Pound Bag) $16.29

$1629
current price $16.29Nitrogen Fertilizer 16 Ounces - Plant Nutrient for Deficiency Treatment and Enhanced Growth in Vegetative Stage - Indoor, Outdoor, Hydroponic Use (1 Pound Bag)
The Andersons Professional 24-0-11 2% Iron Deep Green Fertilizer with NS-54 Nitrogen 40 lb Bag 10,000 sq ft $81.88

$8188
current price $81.88The Andersons Professional 24-0-11 2% Iron Deep Green Fertilizer with NS-54 Nitrogen 40 lb Bag 10,000 sq ft
4.8 out of 5 stars
Microbial Fertilizer Soil Amendment - Root Enhancer - Increased Yields - Nitrogen Fixation - Active and Living Liquid Microbial Concentrate (16 fl oz) $53.20

$5320
current price $53.20Microbial Fertilizer Soil Amendment - Root Enhancer - Increased Yields - Nitrogen Fixation - Active and Living Liquid Microbial Concentrate (16 fl oz)
Lesco Basic Nutrition Fertilizer Stabilized Nitrogen 32-0-3 25% U-Plus 50 lb. $92.99

$9299
current price $92.99Lesco Basic Nutrition Fertilizer Stabilized Nitrogen 32-0-3 25% U-Plus 50 lb.
Espoma Urea Nitrogen Fertilizer 45-0-0, 4lb. Bag; Promotes Growth in All Flowering Plants, Trees, Shrubs, and Vegetables. Granular for Easy Application. Pack of Four. $65.19

$6519
current price $65.19Espoma Urea Nitrogen Fertilizer 45-0-0, 4lb. Bag; Promotes Growth in All Flowering Plants, Trees, Shrubs, and Vegetables. Granular for Easy Application. Pack of Four.
Hi-Yield Grower's Special Nitrogen - Pack of 6 $77.02

$7702
current price $77.02Hi-Yield Grower's Special Nitrogen - Pack of 6
Lesco Basic Nutrition Fertilizer Stabilized Nitrogen 32-0-3 25% U-Plus 50 lb. $91.99

$9199
current price $91.99Lesco Basic Nutrition Fertilizer Stabilized Nitrogen 32-0-3 25% U-Plus 50 lb.
5 out of 5 stars
Bonide Garden Rich Granules Plant Food 4 lb $26.99 Was $29.99

Now$2699
current price Now $26.99, Was $29.99$29.99
Bonide Garden Rich Granules Plant Food 4 lb
4.1 out of 5 stars
100Ml Plant Rooting Liquid Fertilizer, Promotes Healthy Root Development And Strong Plant Growth, With Nitrogen Potassium For All Types Of Potted Green Plants Indoor Outdoor $5.69

$569
current price $5.69100Ml Plant Rooting Liquid Fertilizer, Promotes Healthy Root Development And Strong Plant Growth, With Nitrogen Potassium For All Types Of Potted Green Plants Indoor Outdoor
N-CARE - Long lasting green Nitrogen for plant growth, Green Nitrification Inhibitor $22.75

$2275
current price $22.75N-CARE - Long lasting green Nitrogen for plant growth, Green Nitrification Inhibitor
3.7 out of 5 stars
Lesco Basic Nutrition Fertilizer Stabilized Nitrogen 32-0-3 25% U-Plus 50 lb. $101.99 Was $116.10

Now$10199
current price Now $101.99, Was $116.10$116.10
Lesco Basic Nutrition Fertilizer Stabilized Nitrogen 32-0-3 25% U-Plus 50 lb.
Sunniland Bloom Special Fertilizer, 20 lbs $23.50 $1.18/ea

$2350
current price $23.50$1.18/ea
Sunniland Bloom Special Fertilizer, 20 lbs
4.6 out of 5 stars
Other options to consider(202)
Popular in Nitrogen Boosters
Related Products
Dr. Earth 24 oz Concentrate Tomato Vegetable & Herb Fertilizer
Dr. Earth 24 oz Concentrate Tomato Vegetable & Herb Fertilizer$26.63current price $26.63GH General Organics BioThrive Bloom Quart
GH General Organics BioThrive Bloom Quart$22.84current price $22.84Espoma GG6 Garden Gypsum Fertilizer, 6-Pound
Espoma GG6 Garden Gypsum Fertilizer, 6-Pound$24.25current price $24.25Dr. Earth 18 lbs. Super Natural Organic 5-0-2 Fertilizer 2000 sq. ft
Dr. Earth 18 lbs. Super Natural Organic 5-0-2 Fertilizer 2000 sq. ft$50.01current price $50.01Espoma Berry-Tone Organic Acid-Loving Plants 4-3-4 Plant Fertilizer 18 lb
Espoma Berry-Tone Organic Acid-Loving Plants 4-3-4 Plant Fertilizer 18 lb$34.99current price $34.99Dr. Earth Life Organic Flowers/Fruits/Vegetables All Purpose Fertilizer 4 lb
Dr. Earth Life Organic Flowers/Fruits/Vegetables All Purpose Fertilizer 4 lb$28.97current price $28.97Medina Agriculture Products Growin Green Organic Granular Fertilizer, 5 lb
Medina Agriculture Products Growin Green Organic Granular Fertilizer, 5 lb$18.99current price $18.99Nutri-Plus 2.5-0-0 Organic Fertilizer 2 x 2.5 gallons
Nutri-Plus 2.5-0-0 Organic Fertilizer 2 x 2.5 gallons$140.00current price $140.00Jobe's Organics Bone Meal Spikes - 50pk
Jobe's Organics Bone Meal Spikes - 50pk$12.03current price $12.03House & Garden HGAMT01L Amino Treatment Fertilizer, 1 L (2)
House & Garden HGAMT01L Amino Treatment Fertilizer, 1 L (2)$154.95current price $154.95
