Similar to: Lawn Supply Company Ammonium Sulfate
2 filters applied based on search
Top Picks
Best nitrogen supplement for gardeners needing high-purity, water-soluble plant nutrition.
This is the gold standard for gardeners who need a clean, high-purity nitrogen boost without the heavy metal baggage of lesser fertilizers. Its exceptional solubility makes it a versatile workhorse for everything from soil drenching to complex hydroponic systems, though you will need to look elsewhere if your soil is already nitrogen-rich.
Nutrient Rich
High Solubility
Low Heavy Metals
Non-Foaming
-
Rapid Green-Up Power
-
Added Sulfur for Soil Health
-
Effective Soil Acidification
-
High Potential for Fertilizer Burn
-
Incomplete Nutrient Profile
-
Requires pH Monitoring
Best high nitrogen fertilizer for gardeners seeking rapid lawn greening.
A high-purity, water-soluble nitrogen and sulfur source designed for professional-grade fertigation and hydroponic systems. Its ultra-fine crystal structure ensures rapid, residue-free dissolution, making it a reliable choice for consistent nutrient delivery across diverse crop types.
High Purity
Water Soluble
Fast Dissolving
Versatile Use
-
Rapid Greening
-
High Solubility
-
Soil Acidification
-
Burn Risk
-
Frequent Application
-
pH Sensitivity
Best nutrient supplement for gardeners preventing blossom end rot and tip burn.
This is the ultimate insurance policy against blossom end rot and weak cell walls. While it requires a bit more attention than a standard slow-release granule, the immediate, water-soluble nutrient boost is the fastest way to turn struggling vegetables and houseplants into thriving, high-yield specimens.
Rot Prevention
Cell Strength
Green Growth
Nutrient Uptake
-
Essential Calcium Delivery
-
Rapid Growth Boost
-
Ideal for Acidic Soils
-
Not a Complete Nutrient Source
-
Requires Careful Storage
-
Potential for Fertilizer Burn
Best concentrated calcium source for professional hydroponic and soilless growers.
Best nitrogen supplement for gardeners seeking quick, plant-based growth results.
Best high-nitrogen fertilizer for growers seeking vigorous vegetative plant development.
Best nutrient booster for gardeners seeking vibrant blooms and lush turf.
Best water-soluble fertilizer for gardeners growing acid-loving plants.
Best organic nitrogen source for eco-conscious gardeners and professional growers.
Best quick-release nitrogen source for gardeners needing efficient dry-spray application.
Best baseline nutrient solution for professional-grade automated irrigation systems.
Best microbial supplement for gardeners seeking healthier, more resilient plants.
Best organic supplement for gardeners seeking stronger roots and lush growth.
Best high purity supplement for serious hydroponic growers.
Best bloom booster for indoor gardeners seeking maximum harvest density.
Best all-in-one fertilizer for growers using tap or well water.
Best professional-grade fertilizer for peat-based container and bedding plants.
Best potassium supplement for gardeners maximizing fruit and flower production.
Best bloom booster for growers seeking enhanced flower quality and potency.
Best high-nitrogen fertilizer for gardeners seeking rapid spring and summer growth.
Best potassium booster for growers seeking larger, denser flower yields.
Best high phosphorus fertilizer for maximizing seasonal flower production.
Best high performance fertilizer for dedicated flower gardeners.
Best organic soil conditioner for home gardeners seeking simple plant vitality.
Best organic soil supplement for large-scale sustainable crop farmers.
Best nutrient supplement for coco coir growers using reverse osmosis water.
Best root booster for gardeners seeking larger, more nutrient-dense plant yields.
Best bloom booster for growers seeking larger, more aromatic medicinal harvests.
Best organic nutrient booster for versatile soil and hydroponic gardeners.
Best professional-grade fertilizer for greenhouse mum and poinsettia growers.
Best bloom booster for gardeners seeking larger, more abundant floral displays.
Best flowering supplement for growers seeking larger, more robust fruit yields.
Best organic supplement for gardeners seeking to boost plant vitality.
Best professional-grade fertilizer for growers managing high-pH soil conditions.
Best specialized fertilizer for home strawberry growers and hydroponic enthusiasts.
Best bloom booster for growers seeking larger, more fragrant flower yields.
Best organic nutrient solution for vegan-conscious hydroponic gardeners.
Best reliable supplement for home gardeners seeking vibrant plant foliage.
Best natural mineral supplement for organic home gardeners.
Best versatile fertilizer for gardeners seeking consistent and healthy plant growth.
Best organic root booster for home gardeners seeking healthier plants.
Best high concentration supplement for budget conscious indoor gardeners.
Best professional grade nutrient boost for serious hydroponic growers.
Best natural soil treatment for eco-conscious gardeners and pet owners.
Best nitrogen-fixing supplement for gardeners seeking larger yields and stronger roots.
Best bloom booster for growers seeking larger, denser final harvests.
Best bloom booster for gardeners seeking higher yields and vibrant flowers.
Best organic potassium source for hydroponic and drip irrigation systems.
Best growth booster for mushroom cultivators seeking higher yields and contamination protection.
Best structural supplement for growers seeking rapid vegetative development.
Best bloom booster for growers seeking higher yields and healthier roots.
Best biological root booster for home gardeners starting new seedlings.
Best natural soil amendment for dedicated organic gardeners.
Best reliable growth formula for indoor gardening enthusiasts.
Best specialized nutrient boost for acid loving garden plants.
Best organic soil amendment for eco-conscious gardeners seeking stronger plant immunity.
Best balanced fertilizer for growers managing large-scale, continuous feeding programs.
Best soil inoculant for gardeners seeking to maximize natural phosphorus uptake.
Best microbial supplement for organic gardeners seeking improved nutrient uptake.
Best organic soil booster for gardeners seeking healthier, more vibrant plants.
Best organic nutrient solution for indoor plant enthusiasts.
Best bloom booster for gardeners seeking larger, more robust flower yields.
Best organic fertilizer for gardeners seeking rapid and visible plant growth.