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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.

Alfalfa Meal (25 Lb Bag)
Alfalfa Meal (25 Lb Bag)

F033

$19.99 As low as: $15.99
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Biochar 1 cu ft
Biochar 1 cu ft

PSO550

$29.99
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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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Double Doody Compost 1 Cu Ft
Double Doody Compost 1 Cu Ft

F645

$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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Poulet Poo 1 Cu Ft
Poulet Poo 1 Cu Ft

F445

$8.99 As low as: $7.19
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SuperMoss Sphagnum Moss 12 oz
SuperMoss Sphagnum Moss 12 oz

GP1590

1 Review

$10.99 As low as: $9.89
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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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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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Bio-Live 5-4-2 (50 lb)
Bio-Live 5-4-2 (50 lb)

F068

$71.99
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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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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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Maxicrop Kelp Extract (Lb)
Maxicrop Kelp Extract (Lb)

F1360

7 Reviews

$19.99
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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 (44 lb Bag)
Maxicrop Kelp Extract (44 lb Bag)

F1366

$399.00 As low as: $319.20
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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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Organic Soybean Meal 7-2-1 (5 Lb Box)
Organic Soybean Meal 7-2-1 (5 Lb Box)

F019

$11.99 As low as: $10.79
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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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Calphos Soft Rock Phosphate - Regular Powder (50 lb)
Calphos Soft Rock Phosphate - Regular Powder (50 lb)

F2101

(2)

$18.99 As low as: $14.24
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Cottonseed Meal (6 Lb Box)
Cottonseed Meal (6 Lb Box)

F023

$9.99 As low as: $8.99
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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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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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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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Diatomite Rock (25 Lb Bag)
Diatomite Rock (25 Lb Bag)

F032

$22.99 As low as: $18.39
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Dolomite (50 Lb)
Dolomite (50 Lb)

F850

$9.99 As low as: $7.99
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f940-a.jpg
Feather Meal (50 Lb)

F940

$49.99 As low as: $39.99
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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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Activate 80 Micronized Humate (30 Lb)
Activate 80 Micronized Humate (30 Lb)

F531

$89.99 As low as: $71.99
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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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VermiBlend (1 Cu Ft)
VermiBlend (1 Cu Ft)

F910

(2)

$14.99 As low as: $11.99
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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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Kelp Meal (5 Lb Box)
Kelp Meal (5 Lb Box)

F017

$14.99 As low as: $13.49
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f018-a.jpg
Oyster Shell Lime (6 Lb Box)

F018

$7.49 As low as: $6.74
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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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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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f045-a.jpg
Gaia Green Glacial Rock Dust (50 lb)

F045

(3)

$29.99 As low as: $23.99
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f024-a.jpg
Humic Acids, Granular (5 Lb Box)

F024

$7.49 As low as: $6.74
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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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Humax (Gallon)
Humax (Gallon)

PSA800

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

PSA802

$59.99
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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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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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f1153-a.jpg
Diamond K Solution Grade Gypsum (50 Lb)

F1153

$8.99 As low as: $7.19
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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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Organic Alfalfa Meal (40 Lb)
Organic Alfalfa Meal (40 Lb)

F034

$27.99 As low as: $22.39
Add to Wishlist

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

For Life!

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