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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.

Humax (5 Gallon)
Humax (5 Gallon)

PSA802

$59.99
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Humax (Gallon)
Humax (Gallon)

PSA800

$14.99
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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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Leafy Green 7/1/2 (50 Lb)
Organic Leafy Green 7/1/2 (50 Lb)

F367

$44.99 As low as: $35.99
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Diamond K Solution Grade Gypsum (50 Lb)
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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Crab Shell Meal 4-3-0 (40 Lb)
Crab Shell Meal 4-3-0 (40 Lb)

F1963

$44.99 As low as: $35.99
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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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Pelleted Bone Meal 4-14-0 (50 Lb)
Pelleted Bone Meal 4-14-0 (50 Lb)

F360

$69.99 As low as: $55.99
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Feather Meal (5 Lb Box)
Feather Meal (5 Lb Box)

F026

$12.99 As low as: $11.69
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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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Vegetable & All Purpose Mix 4-6-2 (25 lb Bag)
Vegetable & All Purpose Mix 4-6-2 (25 lb Bag)

F065

$29.99 As low as: $23.99
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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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Seabird Guano 12-12-2.5 (55 Lb)
Seabird Guano 12-12-2.5 (55 Lb)

F1924

1 Review

$49.99 As low as: $39.99
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Greensand (6 Lb Box)
Greensand (6 Lb Box)

F016

$14.99 As low as: $13.49
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Greensand (50 Lb)
Greensand (50 Lb)

F1120

$48.99 As low as: $39.19
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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

$19.99 As low as: $17.99
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Veggie Mix 8-5-0.5 (50 Lb)
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 Organic Pellets (50 lb)

F442

(3)

$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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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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Nutra Min - Sierra Mountain Minerals (30 Lb Bag)
Nutra Min - Sierra Mountain Minerals (30 Lb Bag)

F1796

$64.99 As low as: $51.99
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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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Iron Sulfate 20 (50 Lb)
Iron Sulfate 20 (50 Lb)

F1250

$29.99
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Bio-Live 5-4-2 (5 lb box)
Organic Bio-Live 5-4-2 (5 lb box)

F001

$11.99 As low as: $10.79
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Langbeinite 0-0-22 (5 lb box)
Organic Langbeinite 0-0-22 (5 lb box)

F002

$9.99 As low as: $8.99
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Crab Shell Meal 4-3-0 (25 lb)
Organic 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
Organic Bob's Best Compost 1 Cu Ft

F640

$8.99 As low as: $7.19
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Double Doody Compost 1 Cu Ft
Organic Double Doody Compost 1 Cu Ft

F645

$9.99 As low as: $7.99
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Bio-Live 5-4-2 (50 lb)
Organic Bio-Live 5-4-2 (50 lb)

F068

$71.99 As low as: $57.59
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Alfalfa Meal (25 Lb Bag)
Alfalfa Meal (25 Lb Bag)

F033

$21.99 As low as: $17.59
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Biochar 1 cu ft
Biochar 1 cu ft

PSO550

(1)

$27.99
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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 Organic Kelp Meal 1-0-2 (50 lb)

F1445

$79.99 As low as: $63.99
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SPC TRK Biochar 1 yd Tote
Biochar 1 yd Tote

PSO555

$399.00
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Dolomite (50 Lb)
Dolomite (50 Lb)

F850

$9.99 As low as: $7.99
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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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Kelp Meal (5 Lb Box)
Kelp Meal (5 Lb Box)

F017

$14.99 As low as: $13.49
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Oyster Shell Lime (6 Lb Box)
Oyster Shell Lime (6 Lb Box)

F018

$7.49 As low as: $6.74
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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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Humic Acids, Granular (5 Lb Box)
Humic Acids, Granular (5 Lb Box)

F024

$7.99 As low as: $7.19
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