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Organic Potassium Soil Amendment

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Sup\'r Green (3-2-2)
Prices start at : 5.26 USD / 25.00 lbs

Work in, then apply a generous layer as mulch. A local favorite! Ground and composted, Organic Chicken Manure Fertilizer provides a well balanced supply of nutrients to plants. Ingredients: Derived from dry, composted chicken waste.
  • brand: Stutzman Farms
Montana
Bozeman
Bone Meal (2-14-0)
Prices start at : 45.15 USD / 55.0 lbs

Contains 14% phosphate and up to 24% calcium. For individual bulbs, add 1 tsp into the prepared hole and mix with loose dirt. CAUTION: Do NOT feed to cattle or other ruminants. Steamed Bone Meal fertilizer is granulated for easy application and quick...
  • brand: Bridgewell Resources
Montana
Bozeman
Azomite (0-0-0.2)
Prices start at : 17.35 USD / 50.00 lbs

Add to compost or fertilizers and spread up to 500 lbs per acre and lightly disc or apply in row where planting. Spread 1 to 2 lbs per 10 square feet and spade into garden soil. Note: This product is derived from a natural volcanic ash deposit mined in...
  • brand: Azomite Mineral Products
Montana
Bozeman
Sphagnum Peat Moss
Prices start at : 11.45 USD / 50.0 lbs

Contains a unique cell structure that helps regulate moisture and air around plant roots creating an ideal growing environment. Benefits: • Aerates plant roots by loosening heavy soils and adding body to sandy soils.
  • brand: Black Gold
Montana
Bozeman
Fish Bone Meal (4-20-0)
Prices start at : 40.2 USD / 55.0 lbs

Approved organic by the WA State Dept of Agriculture. For established plants, side dress 2-4 oz every month during the growing season. Use the amended soil to fill the hole and water thoroughly.
  • brand: Pro-Pell-It!
Montana
Bozeman
Alfalfa Pellets
Prices start at : 16.25 USD / 55.0 lbs

Pelleted for easy application with NO dust. Also contains trace minerals and triacontanol, a naturally occurring plant growth promoter, which has been shown to improve the growth and yield of many crops.
  • brand: Payback
Montana
Bozeman
Kelp Meal (1-0-2)
Prices start at : 78.35 USD / 55.0 lbs

Garden Beds: Broadcast 5-20 lbs per 1,000 square feet prior to planting and work into the soil. Mix well and water thoroughly. Water thoroughly after application Feed Supplement: Use at 1-2% of the feed ration or free choice.
  • brand: Tidal Organics
Montana
Bozeman
Humic Acids (Granular)
Prices start at : 4.39 USD / 6.00 lbs

Down to Earth Granular Humic Acid Fertilizer is harvested from a huge deposit of compressed and decomposed plant life from millions of years ago. OMRI Listed for use in organic production.
  • brand: Down To Earth
Montana
Bozeman
Kelp Meal (1-0.5-2)
Prices start at : 5.15 USD / 3.00 lbs

Derived from cold water Norwegian seaweed infused with seven strains of beneficial soil microbes. Established Plants: Side dress with 1/4 cup for every 10 square feet of growing area, or work 1/4 cup for every inch of trunk diameter into the soil within...
  • brand: Dr. Earth
Montana
Bozeman
Soybean Meal (7-1-2)
Prices start at : 8.12 USD / 6.00 lbs

Benefits: • All organic, GMO-free ingredients • Processed to retain maximum nutrient value • Slow-release formula lasts throughout the season • 7-1-2 NPK ratio Available in 5-lb container.
  • brand: Down To Earth
Montana
Bozeman
Rock Phosphate
Prices start at : 23.5 USD / 55.0 lbs

Benefits: • A non-leachable source of phosphorus and calcium • Used by growers for over 50 years • Promotes strong roots and accelerates crop maturity • Earthworms and beneficial soil microbes love it! • Contains 3% available — and a minimum...
  • brand: Canton Mills
Montana
Bozeman
Neem Meal (6-1-2)
Prices start at : 8.01 USD / 6.00 lbs

After oil is extracted from seeds of Azadirachta indica the remaining material can be processed and turned into a soil amendment that protects plants against diseases while improving soil nutrients.
  • brand: Down To Earth
Montana
Bozeman
Greensand (0-0-0.1)
Prices start at : 9.65 USD / 8.50 lbs

Mined from natural deposits of glauconite, it is composed primarily of iron-potassium silicate, which gives it a bluish-green color. Medium: 15 to 30 lbs. Light: 5 to 10 lbs. Potassium Deficiency Symptoms: Reduced yields; Spotted or curled leaves; Weak...
  • brand: Espoma
Montana
Bozeman
Vermiculite (8qt)
Prices start at : 2.46 USD / 3.00 lbs

Features: • Immediately improves soil structure • Promotes fast, complex root structure • Won't break down over time • Excellent for use in clay or sandy soils • Provides ideal aeration in raised beds • Lightweight, non-toxic and odorless...
  • brand: Black Gold
Montana
Bozeman
Karanja Cake (55lb)
Prices start at : 65.3 USD / 65 lbs

Give it a try … you'll be amazed by the results! Benefits: • Improves strength, flavor and quality of crops • Contains phyto-chemicals which inhibit the growth of pathogenic soil microbes • Encourages beneficial organisms — earthworms love it!...
  • brand: Concentrates
Montana
Bozeman
Basalt Powder
Prices start at : 21.7 USD / 55.0 lbs

For containers, use 1 cup per cubic foot of potting soil. It's best to work side-dressings into the top 1-inch of the soil. Grower's Tip: The slow-release perks of this product help to reduce plant deficiencies, particularly with fast-growing crops that...
  • brand: Gaia Green
Montana
Bozeman
Greensand (0-0-0.2)
Prices start at : 32.8 USD / 50.0 lbs

Benefits: • A 100% natural source of glauconite • Higher in total potassium than other top brands on the market • Loosens clay soils – binds sandy soils • Low salt promotes healthier soils • Abundant in trace minerals — promotes healthy...
Montana
Bozeman
Dried Blood (13-0-0)
Prices start at : 56.15 USD / 45.0 lbs

Features: • A powerful source of organic nitrogen (13%) • Slow release — feeds plants over a period of time • Promotes healthy, dark green vegetative growth • Derived from dried blood • Used to repel deer and rabbits too! Available size: 40...
  • brand: Pro-Pell-It!
Montana
Bozeman
Neem Cake
Prices start at : 36.95 USD / 50.0 lbs

Containers: Add 1-2 Tbsp per gallon of soil and mix thoroughly or use 1/2 to 1 lb per cubic yard. OMRI Listed for use in organic production. Benefits: • Promotes a rich, dark green leaf color • Protects plant roots and enhances growth • Encourages...
  • brand: Concentrates
Montana
Bozeman
Gypsum
Prices start at : 14.2 USD / 55.0 lbs

Will also improve the structure of alkaline soils by removing excess sodium. Benefits: • Breaks up heavy clay soils • Adds calcium and sulfur in a form readily available to plants • Prevents blossom end rot in tomatoes • Helps fertilizers work...
  • brand: Columbia River Carbonates
Montana
Bozeman
Fossil Shell Flour
Prices start at : 25.9 USD / 57.0 lbs

Diatomaceous earth is a gardener's best friend. Safe and effective — contains less than one half of 1% crystalline silica and is “generally regarded as safe.” Benefits • Food grade — OMRI certified for use with grain, seed, livestock operations...
  • brand: Perma-Guard
Montana
Bozeman
Cottonseed Meal
Prices start at : 30.9 USD / 55.0 lbs

Lightly work into the soil and water. Apply as a topdressing at the rate of 1-2 lbs per 100 square feet. Additional applications may be needed during the growing season. A by-product of the cotton industry, Cottonseed Meal (5-2-1) is an excellent source...
  • brand: Pro-Pell-It!
Montana
Bozeman
Garden Manure (4-2-2)
Prices start at : 3.44 USD / 5.00 lbs

Espoma Garden Manure (4-2-2) feeds plants slowly and safely. Will also improve the soil by conditioning it with organic matter. An additional feeding should be made after plants are well established.
  • brand: Espoma
Montana
Bozeman
Greensand
Prices start at : 6.14 USD / 8.00 lbs

Containers: Add 1-2 Tbsp per gallon of soil and mix thoroughly or add 2-1/2 to 5 lbs per cubic yard. Gardens: Apply 5-10 lbs per 100 square feet and mix into the top 3-inches of soil.
  • brand: Down To Earth
Montana
Bozeman
Silica (Si)
Prices start at : 8.5 USD / 2.00 lbs

Features: • Builds strong roots, stems and foliage • A naturally produced and unaltered plant amendment • Improves soil structure, yield and quality of many plant species • Increases the number of co2 receptors in plant tissue • Highly absorbent...
  • brand: MontanaGrow
Montana
Bozeman
Glacial Rock Dust
Prices start at : 21.5 USD / 55.0 lbs

During the growing season, boost plant health by side-dressing in crop rows or around the drip line of trees and shrubs. Remineralize the soil! Gaia Green Glacial Rock Dust contains a broad range of trace minerals… minerals which have been slowly lost...
  • brand: Gaia Green
Montana
Bozeman
Fish Meal (9-4.5-0)
Prices start at : 68.55 USD / 55.0 lbs

Registered for use in organic agriculture (Washington State Dept. Grower's Tip: Unlike synthetic fertilizers, most natural amendments are non burning and will NOT harm delicate seedling roots.
  • brand: Pro-Pell-It!
Montana
Bozeman