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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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Rose, Flower & Bulb Mix 4-8-4 (6 Lb Box)
Rose, Flower & Bulb Mix 4-8-4 (6 Lb Box)

F015

2 Reviews

$9.99 As low as: $8.99
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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

$14.99
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Humax (5 Gallon)
Humax (5 Gallon)

PSA802

$59.99
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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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Gaia Green Glacial Rock Dust (50 lb)

F045

(3)

$29.99 As low as: $23.99
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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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Oyster Shell Lime (50 Lb)
Oyster Shell Lime (50 Lb)

F1850

(2)

$9.99 As low as: $7.99
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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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Organic PrimeStart Booster Blend 3.2-4.5-3.5 (3 Lb Bag)
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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VermiBlend (1 Cu Ft)
VermiBlend (1 Cu Ft)

F910

(2)

$14.99 As low as: $11.99
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Corn Gluten Meal (65 Lb)
Corn Gluten Meal (65 Lb)

F750

$69.99 As low as: $55.99
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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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Feather Meal (50 Lb)

F940

$49.99 As low as: $39.99
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Dolomite (50 Lb)
Dolomite (50 Lb)

F850

$9.99 As low as: $7.99
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Diatomite Rock (25 Lb Bag)
Diatomite Rock (25 Lb Bag)

F032

$22.99 As low as: $18.39
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Malibu Compost Bu's Blend Biodynamic Compost  (1 cu ft)
Malibu Compost Bu's Blend Biodynamic Compost (1 cu ft)

F908

1 Review

$19.99 As low as: $15.99
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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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Bio-Live 5-4-2 (5 lb box)
Bio-Live 5-4-2 (5 lb box)

F001

$11.99 As low as: $10.79
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Dr. Earth Fruit Tree Fertilizer 7-4-2 (4 lb)
Dr. Earth Fruit Tree Fertilizer 7-4-2 (4 lb)

F9015

$9.99 As low as: $8.99
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Dr. Earth Tomato, Vegetable, Herb 5-7-3 (4 lb)
Dr. Earth Tomato, Vegetable, Herb 5-7-3 (4 lb)

F9000

$9.99 As low as: $8.99
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Dr. Earth Tomato Vegetable Herb 5-7-3 (12 lb)
Dr. Earth Tomato Vegetable Herb 5-7-3 (12 lb)

F9001

$24.99 As low as: $22.49
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Dr. Earth Tomato, Vegetable, Herb Blend 5-7-3 (50 lb)
Dr. Earth Tomato, Vegetable, Herb Blend 5-7-3 (50 lb)

F9002

$69.99 As low as: $55.99
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Life All Purpose 5-5-5 (25 lb)
Life All Purpose 5-5-5 (25 lb)

F9006

$49.99 As low as: $39.99
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Life All Purpose 5-5-5 (40 lb)
Life All Purpose 5-5-5 (40 lb)

F9007

(1)

$64.99 As low as: $51.99
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Dr. Earth All Purpose 4-4-4 (4 lb)
Dr. Earth All Purpose 4-4-4 (4 lb)

F9010

$9.99 As low as: $8.99
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Dr. Earth All Purpose 4-4-4 (12 lb)
Dr. Earth All Purpose 4-4-4 (12 lb)

F9011

$24.99 As low as: $22.49
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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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Alfalfa Meal (5 Lb Box)
Alfalfa Meal (5 Lb Box)

F011

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

F1360

7 Reviews

$19.99
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Iron Sulfate 20 (50 Lb)
Iron Sulfate 20 (50 Lb)

F1250

$27.99
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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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Feather Meal (25 lb)
Feather Meal (25 lb)

F935

$34.99
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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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Dr. Earth Fruit Tree Fertilizer 7-4-2 (12 lb)
Dr. Earth Fruit Tree Fertilizer 7-4-2 (12 lb)

F9016

$24.99 As low as: $22.49
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Dr. Earth Rose & Flower 5/7/2 (4 lb)
Dr. Earth Rose & Flower 5/7/2 (4 lb)

F9020

(1)

$9.99 As low as: $8.99
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Poulet Poo 1 Cu Ft
Poulet Poo 1 Cu Ft

F445

$8.99 As low as: $7.19
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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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Bio-Live 5-4-2 (50 lb)
Bio-Live 5-4-2 (50 lb)

F068

$71.99
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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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