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Soil Amendments

About soil amendments

Whether you need to add organic matter, add nutrients, or balance your soil pH, we have the organic soil amendments you need.

Sulfate of Potash Ultrafines - Diamond K Soluble (50 Lb)
Sulfate of Potash Ultrafines - Diamond K Soluble (50 Lb)

F2300

1 Review

$44.99 As low as: $35.99
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Diamond K Solution Grade Gypsum (50 Lb)

F1153

$8.99 As low as: $7.19
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Pre-Plant Plus 7-5-7 (50 Lb)
Pre-Plant Plus 7-5-7 (50 Lb)

F324

$39.99 As low as: $31.99
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Humax (Gallon)
Humax (Gallon)

PSA800

$12.99
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Humax (5 Gallon)
Humax (5 Gallon)

PSA802

$49.99
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Tiger 90 Soil Sulfur (50 Lbs)
Tiger 90 Soil Sulfur (50 Lbs)

F2210

$27.99 As low as: $22.39
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Humic Acids, Granular (5 Lb Box)

F024

$7.49 As low as: $6.74
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Oyster Shell Lime (6 Lb Box)

F018

$7.49 As low as: $6.74
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Kelp Meal (5 Lb Box)
Kelp Meal (5 Lb Box)

F017

$14.99 As low as: $13.49
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Activate 80 Micronized Humate (30 Lb)
Activate 80 Micronized Humate (30 Lb)

F531

$89.99 As low as: $71.99
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Activate 80 Coarse Grade Humate (50 Lb)
Activate 80 Coarse Grade Humate (50 Lb)

F535

$24.99 As low as: $19.99
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Algamin Kelp Meal (55 Lb)
Algamin Kelp Meal (55 Lb)

F1455

$99.99 As low as: $79.99
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Algamin Kelp Meal (11 Lb Bag)
Algamin Kelp Meal (11 Lb Bag)

F1450

$24.99 As low as: $19.99
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Dolomite (50 Lb)
Dolomite (50 Lb)

F850

$9.99 As low as: $7.99
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Langbeinite 0-0-22 (5 lb box)
Langbeinite 0-0-22 (5 lb box)

F002

$9.99 As low as: $8.99
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Maxicrop Kelp Extract (44 lb Bag)
Maxicrop Kelp Extract (44 lb Bag)

F1366

$399.00 As low as: $319.20
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Crab Shell Meal 4-3-0 (25 lb)
Crab Shell Meal 4-3-0 (25 lb)

F1964

$26.99 As low as: $21.59
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Bob's Best Compost 1 Cu Ft
Bob's Best Compost 1 Cu Ft

F640

$7.99 As low as: $6.39
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Double Doody Compost 1 Cu Ft
Double Doody Compost 1 Cu Ft

F645

$8.99 As low as: $7.19
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Crab Shell Meal 4-3-0 (50 lb)
Crab Shell Meal 4-3-0 (50 lb)

F1962

$44.99 As low as: $35.99
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Calphos Soft Rock Phosphate - Regular Powder (50 lb)
Calphos Soft Rock Phosphate - Regular Powder (50 lb)

F2101

(2)

$17.99 As low as: $13.49
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Nutra Min - Sierra Mountain Minerals (30 Lb Bag)
Nutra Min - Sierra Mountain Minerals (30 Lb Bag)

F1796

$59.99 As low as: $47.99
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Worm Castings (1 Gal)
Worm Castings (1 Gal)

F903

2 Reviews

$6.99
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Fish Bone Meal 3-16-0 (6 Lb)
Fish Bone Meal 3-16-0 (6 Lb)

F020

1 Review

$8.99 As low as: $8.09
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Fish Bone Meal 3-16-0 (50 Lb)
Fish Bone Meal 3-16-0 (50 Lb)

F312

$44.99 As low as: $35.99
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Vegetable & All Purpose Mix 4-6-2 (25 lb Bag)
Vegetable & All Purpose Mix 4-6-2 (25 lb Bag)

F065

$28.99 As low as: $23.19
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Pelleted Bone Meal 4-14-0 (50 Lb)

F360

$69.99 As low as: $55.99
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Big Red Blood Meal - Pelleted - 13-0-0 (50 Lb)
Big Red Blood Meal - Pelleted - 13-0-0 (50 Lb)

F103

$119.00 As low as: $95.20
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Veggie Mix 8-5-0.5 (50 Lb)

F350

$34.99 As low as: $27.99
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Azomite Micronized (44 lb)
Azomite Micronized (44 lb)

F040

1 Review

$24.99 As low as: $19.99
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Bio-Fish All Purpose 7-7-2 (5 Lb Box)
Bio-Fish All Purpose 7-7-2 (5 Lb Box)

F025

$9.99 As low as: $8.99
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Nutri-Rich 4-3-2 Pellets (50 lb)
Nutri-Rich 4-3-2 Pellets (50 lb)

F442

2 Reviews

$13.99 As low as: $11.19
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Vermiculite (3.5 Cu Ft Bag)
Vermiculite (3.5 Cu Ft Bag)

PSO352

$33.99 As low as: $27.19
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Seabird Guano 12-12-2.5 (55 Lb)

F1924

1 Review

$49.99 As low as: $39.99
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Bone Meal Steamed 3-15-0 (50 Lb)
Bone Meal Steamed 3-15-0 (50 Lb)

F155

$58.99 As low as: $47.19
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Greensand (6 Lb Box)

F016

$9.99 As low as: $8.99
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Greensand (50 Lb)

F1120

$34.99 As low as: $27.99
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Fertibor Boron (50 Lb)
Fertibor Boron (50 Lb)

F210

$54.99 As low as: $43.99
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Worm Castings (1 Cu Ft)
Worm Castings (1 Cu Ft)

F902

1 Review

$19.99 As low as: $15.99
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Bone Meal Steamed 3-15-0 (6 Lb Box)
Bone Meal Steamed 3-15-0 (6 Lb Box)

F014

2 Reviews

$10.99 As low as: $9.89
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Vegetable & All Purpose Mix 4-6-2 (6 Lb Box)
Vegetable & All Purpose Mix 4-6-2 (6 Lb Box)

F010

$9.99 As low as: $8.99
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Blood Meal (5 Lb Box)
Blood Meal (5 Lb Box)

F013

$18.99 As low as: $17.09
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Free Seed Packs

With Online Orders

  • 2 free seed packs on orders of $50
  • 5 free seed packs on orders of $100

Browse Peaceful Valley Organic Vegetable Seed Packs

Grow Organic

  • For a healthy and safe food supply
  • For a clean and sustainable environment
  • For an enjoyable and rewarding experience

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