Fertilizers & Amendments

Organic Fertilizer
Soil health is vital to what you grow or treat, and organic fertilizers provide a much wider array of nutrients plus organic matter than standard N-P-K only fertilizers, to build healthier soil, stimulate biology and increase health, yields and aesthetics.

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6,950.75

Neptune's Harvest Tomato & Vegetable

Neptune's Harvest Tomato & Vegetable Formula 2-4-2

From $21.00

Neptune's Harvest Organic Fish & Seaweed Blend Organic Fertilizer

Neptune's Harvest Fish & Seaweed Blend 2-3-1

From $20.00

Neptune's Harvest Hydrolyzed Fish

Neptune's Harvest Hydrolyzed Fish Fertilizer 2-4-1

From $19.75

Neptune's Harvest Rose & Flowering Formula (2-6-4) Organic Fertilizer Neptune's Harvest

Neptune's Harvest Rose & Flowering Formula (2-6-4)

From $21.25

Neptune's Harvest Turf Formula Organic Fertilizer

Neptune's Harvest Turf Formula 2-0-2 (No Phosphorous)

From $59.50

Worm Power Granular Worm Castings Organic Fertilizer Worm Power

Worm Power Fertilizer

From $26.00

Microbe Life Hydroponics Terps Plus

Microbe Life Terps Plus

From $51.25

All-In-One by Microbe Life Hydroponics

Microbe Life Hydroponics All-in-One Fertilizer

From $20.25

Neptune's Harvest Kelp Meal 4 lb.

Neptune's Harvest Kelp Meal

From $39.75

Neptune's Harvest Lobster & Crab Shell Liquid 2-0-2 GrowItNaturally.com

Neptune's Harvest Lobster & Crab Shell Liquid 2-0-2

From $23.25

Neptune's Harvest Lawn Starter Organic Fertilizer

Neptune's Harvest Lawn Starter 2-3-2 (with Phosphorus)

From $59.50

Neptune's Harvest Organic Crab Shell Fertilizer

Neptune's Harvest Crab & Lobster Shell Pieces (5-3-0)

From $27.75

Neptune's Harvest Tomato & Vegetable Organic Seaweed Fertilizer

Neptune's Harvest Seaweed Plant Food 0-0-1

From $20.00

Organic Approach SEP Organic Soluble Seaweed & Kelp Powder

Soluble Seaweed Powder Nature's Essence SEP

From $29.50

Nourish-L by Microbe Life Hydroponics

Microbe Life Hydroponics Nourish-L Organic Humic Acid

From $22.75

Vitamins & Amino Acids by Microbe Life Hydroponics

Microbe Life Hydroponics Vitamins & Amino Acids

From $19.50

Azomite Soil Amendment Organic Fertilizer Organic Approach

Azomite Soil Amendment

From $29.00

FoxFarm Tiger Bloom 2-8-4 Organic Fertilizer FoxFarm

FoxFarm Tiger Bloom 2-8-4

From $23.00