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Organic Fertilizer

Fertilizers & Amendments

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.

44 Results

Neptune's Harvest Tomato & Vegetable
Neptune's Harvest Tomato & Vegetable Pint
Neptune's Harvest Organic Fish & Seaweed Blend Organic Fertilizer
Neptune's Harvest Organic Fish & Seaweed Blend Pint 18 Ounce Organic Fertilizer

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

from $20.00

Unit price
per 

Neptune's Harvest Rose & Flowering Formula (2-6-4) Organic Fertilizer Neptune's Harvest
Neptune's Harvest Rose & Flowering Pint
Neptune's Harvest Hydrolyzed Fish
Neptune's Harvest Hydrolyzed Fish Pint 18 Ounce
Neptune's Harvest Turf Formula Organic Fertilizer
Neptune's Harvest Turf Formula Organic Fertilizer 1 Gallon
Worm Power Granular Worm Castings Organic Fertilizer Worm Power
Worm Power Organic Worm Castings Vermicompost

Worm Power Granular Worm Castings

from $26.00

Unit price
per 

Microbe Life Hydroponics Terps Plus
Microbe Life Hydroponics Terps Plus Quart

Microbe Life Terps Plus

from $61.25

Unit price
per 

Organic Kelp Meal Neptune's Harvest
Organic Kelp Meal Neptune's Harvest 4 lb

Neptune's Harvest Kelp Meal

from $32.00

Unit price
per 

All-In-One by Microbe Life Hydroponics
All-In-One by Microbe Life Hydroponics, 16 oz.
Free Shipping (Excludes 2.5 Gallon)

Microbe Life Hydroponics All-in-One Fertilizer

from $20.25

Unit price
per 

Neptune's Harvest Lawn Starter Organic Fertilizer
Neptune's Harvest Lawn Starter Organic Fertilizer 1 Gallon
Neptune's Harvest Organic Crab Shell Fertilizer
Neptune's Harvest Organic Crab Shell Fertilizer 4 lb
Neptune's Harvest Lobster & Crab Shell Liquid 2-0-2 GrowItNaturally.com
Neptune's Harvest Lobster & Crab Shell Liquid 2-0-2 GrowItNaturally.com
Neptune's Harvest Tomato & Vegetable Organic Seaweed Fertilizer
Neptune's Harvest Seaweed Plant Food 0-0-1 Organic Fertilizer Neptune's Harvest

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

from $19.75

Unit price
per 

Organic Approach SEP Organic Soluble Seaweed & Kelp Powder
Organic Approach SEP Organic  Soluble Seaweed & Kelp Powder

Soluble Seaweed Powder Nature's Essence SEP

from $34.00

Unit price
per 

Nourish-L by Microbe Life Hydroponics
Nourish-L by Microbe Life Hydroponics, 1 gallon
Vitamins & Amino Acids by Microbe Life Hydroponics
Vitamins & Amino Acids by Microbe Life Hydroponics, 16 oz.

Microbe Life Hydroponics Vitamins & Amino Acids

from $19.50

Unit price
per