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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.

Organic Alfalfa Meal (40 Lb)
Organic Alfalfa Meal (40 Lb)

F034

$27.99 As low as: $22.39
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Diamond K Solution Grade Gypsum (50 Lb)

F1153

$8.99 As low as: $7.19
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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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Monterey Manganese Sulfate 31% Powder (50 Lb)
Monterey Manganese Sulfate 31% Powder (50 Lb)

F1676

$49.99 As low as: $39.99
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Organic PrimeStart Booster Blend
Organic PrimeStart Booster Blend 3.2-4.5-3.5 (3 Lb Bag)

F2000

6 Reviews

$3.99 As low as: $2.49
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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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Bat Guano Hi N 9-3-1 Powder (25 Lb Bag)
Bat Guano Hi N 9-3-1 Powder (25 Lb Bag)

F029

$55.99 As low as: $44.79
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Bat Guano Hi N 9-3-1 (2 Lb Box)
Bat Guano Hi N 9-3-1 (2 Lb Box)

F012

$7.99 As low as: $7.19
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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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Maxicrop Kelp Extract (Lb)
Maxicrop Kelp Extract (Lb)

F1360

7 Reviews

$19.99
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Sunleaves Indonesian Bat Guano 44 Lb 0/7/0
Sunleaves Indonesian Bat Guano 44 Lb 0/7/0

F1912

$109.00 As low as: $98.10
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Sunleaves Jamaican Bat Guano 40 Lb 0/10/0
Sunleaves Jamaican Bat Guano 40 Lb 0/10/0

F1913

$119.00 As low as: $107.10
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Sunleaves Peruvian Seabird Guano 40 Lb 12/11/2
Sunleaves Peruvian Seabird Guano 40 Lb 12/11/2

F1914

$94.99 As low as: $85.49
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Seabird Guano Hi P 1-10-0 Powder (20 lb bag)
Seabird Guano Hi P 1-10-0 Powder (20 lb bag)

F1937

$42.99 As low as: $34.39
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Par 4 Kelp Meal 1-0-2
Par 4 Kelp Meal 1-0-2 (10 lb)

F1440

$19.99 As low as: $15.99
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Par 4 Kelp Meal 1-0-2
Par 4 Kelp Meal 1-0-2 (50 lb)

F1445

$79.99 As low as: $63.99
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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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Micro Hume
Micro Hume (2 Lb Jar)

F520

1 Review

$9.99 As low as: $7.99
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Seabird Guano Hi P 1-10-0 (40 Lb Bag)

F1939

$64.99 As low as: $51.99
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Seabird Guano Hi P 1-10-0 (5 Lb Box)
Seabird Guano Hi P 1-10-0 (5 Lb Box)

F1938

1 Review

$12.99 As low as: $11.69
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Seabird Guano Hi N 12-12-2 (5 Lb Box)
Seabird Guano Hi N 12-12-2 (5 Lb Box)

F1932

$14.99 As low as: $13.49
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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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