We use cookies to enhance the security, performance, functionality and for analytical and promotional activities. We use cookies to personalize ads for you. By continuing to browse this site you're agreeing to our Privacy PolicyWe use cookies to enhance your experience and personalize ads. By using the site, you agree to that. Privacy Policy

10 bestOrganic Slow Release Fertilizerof April 2025

112M consumers helped this year.

46% off

1

Gaia Green Organic 4-4-4 All Purpose Fertilizer 2kg
Gaia Green Organic 4-4-4 All Purpose Fertilizer 2kg

Gaia Green

9.9

View Product
Buy it on Amazon

2

Espoma Co. HT18 Holly Tone, 18-Pound
Espoma Co. HT18 Holly Tone, 18-Pound

Espoma

9.8

View Product
Buy it on Amazon

3

Scotts Company Osmocote 274250 Outdoor and Indoor Smart Release Plant Food Bottle, 2-Pound
Scotts Company Osmocote 274250 Outdoor and Indoor Smart Release Plant Food Bottle, 2-Pound

Osmocote

9.7

View Product
Buy it on Amazon

4

Espoma Co. GT4 4-Pound Garden-Tone 3-4-4 Plant Food
Espoma Co. GT4 4-Pound Garden-Tone 3-4-4 Plant Food

Espoma

9.5

View Product
Buy it on Amazon

5

Espoma Co. PT4 4-Pound Plant-Tone Organic 5-3-3 Food
Espoma Co. PT4 4-Pound Plant-Tone Organic 5-3-3 Food

Espoma

9.2

View Product
Buy it on Amazon

6

Dr. Earth 75557 1 lb 3-4-3 MINIS Acid Lovers Azalea, Camellia, Rhododendron and Maple Fertilizer
Dr. Earth 75557 1 lb 3-4-3 MINIS Acid Lovers Azalea, Camellia, Rhododendron and Maple Fertilizer

Dr. Earth

9.0

View Product
Buy it on Amazon

7

Miracle-Gro Organics Pure Hen Manure Plant Food 3-1-2, 2kg
Miracle-Gro Organics Pure Hen Manure Plant Food 3-1-2, 2kg

Miracle-Gro

8.7

View Product
Buy it on Amazon

8

Espoma Organic Plant-Tone 5-3-3 Natural & Organic All Purpose Plant Food; 4 lb. Bag; The Original Organic Fertilizer for All Flowers, Vegetables, Trees, and Shrubs. - Pack of 2
Espoma Organic Plant-Tone 5-3-3 Natural & Organic All Purpose Plant Food; 4 lb. Bag; The Original Organic Fertilizer for All Flowers, Vegetables, Trees, and Shrubs. - Pack of 2

Espoma

8.4

View Product
Buy it on Amazon

9

Espoma BTSP4 4 Lbs Bio-Tone Starter Plus 4-3-3
Espoma BTSP4 4 Lbs Bio-Tone Starter Plus 4-3-3

Espoma

8.2

View Product
Buy it on Amazon

37% off

10

Jobe's Organics Vegetable & Tomato Fertilizer Spikes, 50 Spikes
Jobe's Organics Vegetable & Tomato Fertilizer Spikes, 50 Spikes

Jobe's Organics

7.9

View Product
Buy it on Amazon
subscribe-icon

Best Reviews Guide Newsletter

Get exclusive articles, recommendations, shopping tips, and sales alerts

By submitting your email address you agree to our Terms and Conditions and Privacy Policy