SoluGreen Ammonium Sulfate 21-0-0 fertilizer 50 lb.
Best nitrogen supplement for gardeners needing high-purity, water-soluble plant nutrition.
Elevate your plant's health with SoluGreen Ammonium Sulfate 21-0-0 fertilizer. This highly pure, water-soluble formula delivers essential nitrogen and sulfur, ideal for lawns, gardens, flowers, and trees, especially when phosphorus and potassium are sufficient. Manufactured with virgin oleum sulfuric acid, it boasts exceptional solubility and the lowest heavy metal content in the industry. Its non-foaming, double-screened formulation ensures uniform particle size for easy application via soil, fertigation, or hydroponics. Use it during the growing season for vibrant, healthy plants.
$35.75
Owner Satisfaction
4.7
/ 5
Category Rank
50
/ 4425
#50 in Fertilizers
Price vs Category Average
-42%
Below average
Guaranteed Analysis
2124
/ % Ammonium Nitrogen, % Sulfur
Who it's for
- Gardeners seeking immediate foliage growth and deep green color
- Farmers needing to correct sulfur deficiencies for plant health
- Horticulturists growing acid-loving plants in alkaline soil conditions
Who should skip it
- Novice gardeners prone to over-application and root scorching
- Growers looking for a complete, all-in-one nutritional fertilizer solution
- Homeowners maintaining lawns with neutral or acid-sensitive soil types
Performance breakdown
Solubility Efficiency
Dissolves rapidly without foaming for seamless integration into any irrigation system.
Nutrient Purity
Virgin oleum manufacturing ensures minimal heavy metal contamination for cleaner soil health.
Application Versatility
Adapts perfectly to soil, fertigation, or hydroponic setups with ease.
Particle Uniformity
Double-screened consistency prevents clogging during precise mechanical or manual application.
Nitrogen Availability
Quick-release formula provides an immediate, potent boost for rapid greening.
Sulfur Enrichment
High sulfur content effectively supports plant metabolism and soil pH balance.
Key Specs
Guaranteed Analysis
21% Ammonium Nitrogen, 24% Sulfur
Package Weight
50 lb.
SGN
Approximately 100 (Very uniform)
Manufacturing Acid
Virgin oleum sulfuric acid
Heavy Metal Content
Lowest in the industry
Application Method
Foliar Spray
Fertilizer Source
Synthetic
Coverage Area
Varies by use (e.g., 5-7 lbs per 1000 sq ft for turf)
Features
- Pure, water-soluble ammonium sulfate
- Provides essential nitrogen and sulfur
- Extremely high solubility
- Lowest heavy metal content
- Non-foaming formulation
- Uniform particle size
- Versatile application methods
- Ideal for nutrient-balanced soils
What customers say
Customers consistently praise the SoluGreen 21-0-0 for its exceptional effectiveness and outstanding value. Reviewers frequently note the rapid, deep greening of their lawns and plants, often seeing results within days. The fine granular consistency makes application easy and uniform, minimizing clumping issues common with other fertilizers. This large 50 pound bag is highlighted as a cost effective solution for maintaining large turf areas, making it a highly reliable choice for serious gardeners seeking professional results without the premium price.
Know before you buy
This fertilizer provides a concentrated source of nitrogen and sulfur, which is ideal for plants that already have sufficient phosphorus and potassium levels. It is specifically designed to promote vibrant growth and greening during the active growing season.
Yes, its high solubility and non-foaming, double-screened formulation make it excellent for fertigation and hydroponic applications. It dissolves cleanly without clogging equipment.
It is suitable for lawns, vegetables, flowers, trees, and shrubs. However, because it is a quick-release synthetic fertilizer, it is best used when plants are actively growing in the spring and summer.
SoluGreen is manufactured using virgin oleum sulfuric acid, resulting in the lowest heavy metal content in the industry. This ensures you are applying a high-purity nutrient source to your soil.
For general turf maintenance, a typical application rate is 5 to 7 pounds per 1,000 square feet. Always adjust based on your specific soil test results and the nitrogen requirements of your grass type.
No, this is a 21-0-0 fertilizer, meaning it provides 21% nitrogen and 24% sulfur with zero phosphorus or potassium. It is intended for use when your soil already has adequate levels of those other two primary nutrients.
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