Saltpeter(73)
Uses item details. Price when purchased online
Potassium Nitrate, fertilizers 1lb by DAWN SCI $17.95

$1795
current price $17.95Potassium Nitrate, fertilizers 1lb by DAWN SCI
94.6 out of 5 Stars. 9 reviews
Duda Energy Potassium Nitrate Synthetic Fertilizer, 1 lb From $22.21

4 options
Available in additional 4 optionsFrom$2221
Duda Energy Potassium Nitrate Synthetic Fertilizer, 1 lb
574.7 out of 5 Stars. 57 reviews
Potassium Nitrate Powder - KNO3 - 10 Lbs. $37.77

$3777
current price $37.77Potassium Nitrate Powder - KNO3 - 10 Lbs.
384.6 out of 5 Stars. 38 reviews
SOUL ROSSLBS40 LBS, 40 lb $309.60

$30960
current price $309.60SOUL ROSSLBS40 LBS, 40 lb
Sunniland 124615 Soil Enhancer Magnesium Sulphate 4 lb $20.61 Was $25.68

Now$2061
current price Now $20.61, Was $25.68$25.68
Sunniland 124615 Soil Enhancer Magnesium Sulphate 4 lb
The Andersons Professional Potassium Fertilizer 0-0-25-18 lbs. Covers up to 6,000 sqft. $59.88

$5988
current price $59.88The Andersons Professional Potassium Fertilizer 0-0-25-18 lbs. Covers up to 6,000 sqft.
25 out of 5 Stars. 2 reviews
Water Retaining Polymer - 5 Lbs. $77.94

$7794
current price $77.94Water Retaining Polymer - 5 Lbs.
1 Pound Potassium Polyacrylate Increase Moisture and Water-Soluble Nutrients to Plant Roots From $15.95

6 options
Available in additional 6 optionsFrom$1595
1 Pound Potassium Polyacrylate Increase Moisture and Water-Soluble Nutrients to Plant Roots
15 out of 5 Stars. 1 reviews
Grow More 7421 1 lb Stump Remover 13-0-44 $22.95

$2295
current price $22.95Grow More 7421 1 lb Stump Remover 13-0-44
264.3 out of 5 Stars. 26 reviews
Potassium Nitrate Powder - KNO3 - 20 Lbs. $64.95

$6495
current price $64.95Potassium Nitrate Powder - KNO3 - 20 Lbs.
54.2 out of 5 Stars. 5 reviews
Alpha Chemicals Ammonium Chloride Fertilizer, 1 lb with Fine Powder, Used in Fluxes $12.99

$1299
current price $12.99Alpha Chemicals Ammonium Chloride Fertilizer, 1 lb with Fine Powder, Used in Fluxes
154.9 out of 5 Stars. 15 reviews
Yara Liva Calcium Nitrate Greenhouse Grade - 50 lb Bundled by Evergreen Farm and Garden $100.00

$10000
current price $100.00Yara Liva Calcium Nitrate Greenhouse Grade - 50 lb Bundled by Evergreen Farm and Garden
Water Retaining Polymer - 3 Lbs. $44.95

$4495
current price $44.95Water Retaining Polymer - 3 Lbs.
15 out of 5 Stars. 1 reviews
Fortified 20-20-20 (water soluble) 24 oz $24.97

$2497
current price $24.97Fortified 20-20-20 (water soluble) 24 oz
KMS Potassium Magnesium Sulfate 0-0-21.5 - Sul-Po-Mag - Organic Solution Grade Fertilizer Powder (1 Bag)

KMS Potassium Magnesium Sulfate 0-0-21.5 - Sul-Po-Mag - Organic Solution Grade Fertilizer Powder (1 Bag)
Southern Ag 5-11-26 Hydroponic Special Soluble Fertilizer - 25 Lbs. $77.90

$7790
current price $77.90Southern Ag 5-11-26 Hydroponic Special Soluble Fertilizer - 25 Lbs.
Seed Ranch Potassium Nitrate Fertilizer Powder, 99.8% Pure 5 lbs with Plant Growth Nutrients $23.95

$2395
current price $23.95Seed Ranch Potassium Nitrate Fertilizer Powder, 99.8% Pure 5 lbs with Plant Growth Nutrients
734.4 out of 5 Stars. 73 reviews
JRM 8# Soil Moist Granular 1000-2000 Microns $89.87

$8987
current price $89.87JRM 8# Soil Moist Granular 1000-2000 Microns
Diablo Monster Potassium Silicate 0-0-12 32oz $89.99

$8999
current price $89.99Diablo Monster Potassium Silicate 0-0-12 32oz
50lb Bag Organic Solution Grade Sulfate of Potassium Fertilizer Powder 0-0-50 (1 Bag) $97.24

$9724
current price $97.2450lb Bag Organic Solution Grade Sulfate of Potassium Fertilizer Powder 0-0-50 (1 Bag)
Potassium Nitrate Technical Grade KNO3 4LBs 4 LBs (Milled) $32.90

$3290
current price $32.90Potassium Nitrate Technical Grade KNO3 4LBs 4 LBs (Milled)
Soil Vigor Large Granules Water-Storing Crystals for Superior Plant Hydration 10 Pounds $139.00

$13900
current price $139.00Soil Vigor Large Granules Water-Storing Crystals for Superior Plant Hydration 10 Pounds
Palm Fertilizer 2 lb | Nelson Plant Food NutriStar Palm And Ornamental Grasses $22.99

$2299
current price $22.99Palm Fertilizer 2 lb | Nelson Plant Food NutriStar Palm And Ornamental Grasses
Alpha Chemicals Potassium Chloride - KCl - 5 Pounds $24.99

$2499
current price $24.99Alpha Chemicals Potassium Chloride - KCl - 5 Pounds
15 out of 5 Stars. 1 reviews
Old Cobblers Farmâ„¢ 0-0-60 Fertilizer - Potassium (5 lbs | 10 lbs | 15 lbs | 20 lbs) (15 lbs)

Old Cobblers Farmâ„¢ 0-0-60 Fertilizer - Potassium (5 lbs | 10 lbs | 15 lbs | 20 lbs) (15 lbs)
Soil Vitality Boost: Potassium Polymer Moisture Management for Plants 2 Pounds $30.98

$3098
current price $30.98Soil Vitality Boost: Potassium Polymer Moisture Management for Plants 2 Pounds
Orchid Fertilizer 13-3-15 Reverse Osmosis, Rain, Tap (City) Water Formula 5 Pounds $42.77

$4277
current price $42.77Orchid Fertilizer 13-3-15 Reverse Osmosis, Rain, Tap (City) Water Formula 5 Pounds
Pure Original Ingredients Calcium Sulfate 4 oz Baking, Water Treatment & Gardening From $5.99

5 options
Available in additional 5 optionsFrom$599
Pure Original Ingredients Calcium Sulfate 4 oz Baking, Water Treatment & Gardening
The Seed Supply Sulfate of Potassium Fertilizer Powder, 0-0-50 50 lbs with Ultra Fine Grade $82.99

$8299
current price $82.99The Seed Supply Sulfate of Potassium Fertilizer Powder, 0-0-50 50 lbs with Ultra Fine Grade
24 out of 5 Stars. 2 reviews
NPK RAW Potassium 2oz From $15.36

3 options
Available in additional 3 optionsFrom$1536
NPK RAW Potassium 2oz
15 out of 5 Stars. 1 reviews
20 Pounds Organic Solution Grade Sulfate of Potassium SOP Fertilizer Powder 0-0-50

20 Pounds Organic Solution Grade Sulfate of Potassium SOP Fertilizer Powder 0-0-50
15 out of 5 Stars. 1 reviews
8 oz Calcium Carbonate Limestone Powder Garden Fertilizer and pH Neutralizer $10.50

$1050
current price $10.508 oz Calcium Carbonate Limestone Powder Garden Fertilizer and pH Neutralizer
Potassium Nitrate Powder Kno3 - 1LB Greenhouse Grade Fertilizer - Granular Potassium Nitrate for Plants, Garden, Agriculture, & Horticulture $22.35

$2235
current price $22.35Potassium Nitrate Powder Kno3 - 1LB Greenhouse Grade Fertilizer - Granular Potassium Nitrate for Plants, Garden, Agriculture, & Horticulture
KMS Potassium Magnesium Sulfate 0-0-21.5 - Sul-Po-Mag - Organic Solution Grade Soluble Fertilizer Powder $99.99

$9999
current price $99.99KMS Potassium Magnesium Sulfate 0-0-21.5 - Sul-Po-Mag - Organic Solution Grade Soluble Fertilizer Powder
Dibbs Seed Copper Sulfate Powder Fertilizers, 1lb. with Pest control $17.77

$1777
current price $17.77Dibbs Seed Copper Sulfate Powder Fertilizers, 1lb. with Pest control
104.3 out of 5 Stars. 10 reviews
Magnesium Sulfate Anhydrous - 19.8% Mg, 26% Sulfur - 5 Pounds $18.99

$1899
current price $18.99Magnesium Sulfate Anhydrous - 19.8% Mg, 26% Sulfur - 5 Pounds
Solution Grade Potassium Sulfate 0-0-50 OMRI 1lb $24.99

$2499
current price $24.99Solution Grade Potassium Sulfate 0-0-50 OMRI 1lb
15 out of 5 Stars. 1 reviews
Hightower Products "HD 200 Platinum" Mineral (9 lb) $39.95

$3995
current price $39.95Hightower Products "HD 200 Platinum" Mineral (9 lb)
Ferticell Absolute Acid 1-0-0 Soil Conditioner/Fertilizer 2.5 Gallons, Ferticell $145.99

$14599
current price $145.99Ferticell Absolute Acid 1-0-0 Soil Conditioner/Fertilizer 2.5 Gallons, Ferticell
Zinc Sulfate Monohydrate 45lb Bag $101.75

$10175
current price $101.75Zinc Sulfate Monohydrate 45lb Bag
15 out of 5 Stars. 1 reviews
Other options to consider(75)
Popular in Saltpeter
Related Products
CintBllTer Cal Flo Liquid Lime, 2.5 Gallons
CintBllTer Cal Flo Liquid Lime, 2.5 Gallons$107.87current price $107.873001910 Shake N Feed All Purpose Continuous Release Plant Food, 4.5 lb 2 Pack
3001910 Shake N Feed All Purpose Continuous Release Plant Food, 4.5 lb 2 Pack$47.55current price $47.553001910 Shake N Feed All Purpose Continuous Release Plant Food, 4.5 lb, 2 Pack
3001910 Shake N Feed All Purpose Continuous Release Plant Food, 4.5 lb, 2 Pack$54.80current price $54.80Organic Soil Activator & Plant Fertilizer, Water Soluble Garden Booster
Organic Soil Activator & Plant Fertilizer, Water Soluble Garden Booster$7.81current price $7.81NPK Industries 100533828 Raw Bloom, 8 Ounce, White
NPK Industries 100533828 Raw Bloom, 8 Ounce, White$27.20current price $27.20Floral Colors May Vary Plant Food Liquid - For Flowers, Indoor Use - 1 EA
Floral Colors May Vary Plant Food Liquid - For Flowers, Indoor Use - 1 EA$29.53current price $29.53Nutri-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 $140.00Espoma Flower Tone Plant Fertilizer - For Flowers - 18-Pound
Espoma Flower Tone Plant Fertilizer - For Flowers - 18-Pound$117.98current price $117.98FoxFarm Cha Ching High-Phosphorus Late Flowering Formula Flower Fertilizer, 6 oz
FoxFarm Cha Ching High-Phosphorus Late Flowering Formula Flower Fertilizer, 6 oz$18.95current price $18.95Espoma GG6 Garden Gypsum Fertilizer, 6-Pound
Espoma GG6 Garden Gypsum Fertilizer, 6-Pound$22.75current price $22.75Harliver Gardening Universal Slow, Gardening Slow-release Fertilizer General-purpose Nitrogen Phosphorus And Potas, Healthier Roots Using Garden Fertilizer (22 pieces)
Harliver Gardening Universal Slow, Gardening Slow-release Fertilizer General-purpose Nitrogen Phosphorus And Potas, Healthier Roots Using Garden Fertilizer (22 pieces)$6.97current price $6.97Humboldt County's Purple Maxx Bloom Stacker - 1 Quart
Humboldt County's Purple Maxx Bloom Stacker - 1 Quart$67.00current price $67.00