Organic and Natural Fertilizers

Natural & Organic Fertilizers

Ensure a bountiful harvest with organic fertilizers!

At the heart of all organic growing is the art and science of fertilizing organically. The choice of what and when to apply a fertilizer will depend on your soil analysis and the stage of plant growth you are targeting.

Learn More About Fertilizers
Fertilizer Solution Chart Soil Testing Supplies

Narrow Results

Category
  1. Liquid Fertilizer (49)
  2. Pelleted Fertilizer (18)
  3. Powdered Fertilizer (136)
  4. All-Purpose Fertilizer (37)
  5. Fish Fertilizers (17)
  6. Kelp Fertilizers (12)
  7. Water-Soluble Fertilizer (64)
Stock Filter
  1. In Stock (197)
  2. Out of Stock (8)
Brand
  1. Peaceful Valley (23)
  2. Great Salt Lake Minerals (1)
  3. JH Biotech (1)
  4. Marblewhite (1)
  5. Azomite (2)
  6. BioLink (3)
  7. Blue Ocean (1)
  8. Boer Commodities (4)
  9. Bridgewell (2)
  10. Calcium 25 (2)
  11. View 20 More
Price
  1. $1
    $2499
  2.  
  3. $
Organic Status
  1. Approved for Use in Certified Organic Agriculture (144)
  2. Accepted for Use in Organic Gardening* (13)
Organic Certifier
  1. OMRI (97)
  2. WSDA (19)
  3. CDFA (138)
Chemical Form
  1. Liquid (2)
  2. Concentrate (2)
Animal-Based
  1. Yes (125)
  2. No (75)
Biological & Humus
  1. Boosts Microbial Activity (114)
  2. Organic Matter (11)
  3. Humus or Humic Acids (32)
Use as Foliar
  1. Yes (91)
  2. No (100)
Major Nutrients
  1. Over 4% Nitrogen (93)
  2. Over 3% Phosphorus (97)
  3. Over 3% Potassium (54)
  4. Magnesium (7)
  5. Sulfur (20)
  6. Calcium (45)
  7. Trace Minerals (109)
pH Adjusting
  1. Corrects Low pH (6)
  2. Corrects High pH (10)
Nutrient Release Rate
  1. Immediate (0-1 Months) (103)
  2. Short-term (1-4 Months) (76)
  3. Long-term (4+ Months) (32)
Size
  1. 1 - 5 lbs (7)
  2. 6 - 10 lbs (48)
  3. 11 - 25 lbs (40)
  4. 26 - 50 lbs (49)
  5. > 51 lbs (4)
  6. < 24 oz (12)
  7. 1 Gallon (19)
  8. 2 Gallons - 4 Gallons (2)
  9. 5 Gallons (8)
  10. > 50 Gallons (7)

Monterey Dr. Iron (7 lb)

F1240

$14.99
Add to Wishlist

Monterey Dr Iron (21 lb)

F1241

$29.99
Add to Wishlist

Cyco Silica 0-0-3 (1 L)

F3020

$19.99
Add to Wishlist