Nutrients

Northwest Growers Supply carries a huge selection of nutrients and supplements for growing both indoors and outdoors. Mother Earth, Buried Treasure, General Hydroponics, Emerald Harvest, Botanicare, Fox Farm, Roots Organics, Soul Synthetics, Grotek, Nectar for the Gods, Supernatural, Cutting Edge Solutions, Down To Earth, Vermicrop, HydroDynamics, Nutrilife, Xtreme Gardening, Maxsea, BioAg, Technaflora, BioBizz, Grow More, Dyna-Gro, Emerald Triangle, Humboldt, Plant Success, Neptune’s Harvest, RAW, Nature’s Nectar, Microbe Life, Earth Juice, Maxi Crop, Monterery, B’Cuzz, Dutch Master and a long list of other well-known brands are ready for immediate delivery. From organic gardening supplies and blended nutrients to complete kits with everything you need, Northwest Growers Supply offers hundreds of different nutrient and supplement options for hydroponics, indoor gardening, greenhouse gardening and aquaponics.
Maxicrop Algamin Kelp Meal, 55 lb
$84.98

Algamin Kelp Meal, 55 lb

Maxicrop

Algamin Kelp Meal (1-0-2) is fresh-cut Norwegian seaweed slowly, mechanically dried, cleaned, desalted and ground into dust-free meal. Algamin is a...

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$84.98
Guano Company Budswel Liquid, 5 gal
Save 28%
$203.00
$146.71

Budswel Liquid, 5 gal

Guano Company

Concentrated Budswel Liquid (.01-.1-.01) is a custom mix of high-phosphorus bat guano, worm castings and seabird guano. It boosts production in fru...

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$203.00
$146.71
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Down To Earth Down To Earth Langbeinite (Sul-Po-Mag) - 50 lb
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$68.95
$53.37

Down To Earth Langbeinite (Sul-Po-Mag) - 50 lb

Down To Earth

A unique 3-in-1 combination of Potassium, Magnesium and Sulfur, Langbeinite is a naturally occurring source of these three vital plant nutrients. P...

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$68.95
$53.37
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CYCO Cyco Bloom B, 20 L
Save 30%
$98.00
$68.43

Cyco Bloom B, 20 L

CYCO

Cyco Bloom A and B provide potassium that aids in fruit quality, calcium for normal transport and retention of nutrients, and magnesium to help act...

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$98.00
$68.43
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CYCO Cyco Bloom A, 20 L
Save 30%
$98.00
$68.43

Cyco Bloom A, 20 L

CYCO

Cyco Bloom A and B provide potassium that aids in fruit quality, calcium for normal transport and retention of nutrients, and magnesium to help act...

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$98.00
$68.43
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General Organics Go Box Starter Kit
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$53.33
$37.34

Go Box Starter Kit

General Organics

Includes 1 16oz BioThrive Grow, 1 16oz BioThrive Bloom, 1 8oz CaMg+, 1 8oz BioRoot, 1 8oz BioWeed, 1 8oz BioBud, 1 8oz BioMarine, 1 8oz Diamond Black

$53.33
$37.34
Save 30%
Buried Treasure Buried Treasure Phos Bat Guano 40 lb
Save 26%
$126.95
$94.23

Buried Treasure Phos Bat Guano 40 lb

Buried Treasure

Buried Treasure Phos Bat Guano is a natural fertilizer from the Philippines that contains phosphorus. It can be used indoors or outdoors on vegetab...

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$126.95
$94.23
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Grotek Grotek Monster Bloom 2.5 kg
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$199.60
$155.20

Grotek Monster Bloom 2.5 kg

Grotek

Monster Bloom is designed to increase the plant's ability to flower. It increases the essential oil content in herbs and speeds up the development ...

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$199.60
$155.20
Save 22%
Neptunes Harvest Neptune's Harvest Kelp Meal 50 lb Bag
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$105.99
$84.98

Neptune's Harvest Kelp Meal 50 lb Bag

Neptunes Harvest

Neptune's Harvest Organic Kelp Meal is Ascophyllum Nodosum, which is widely recognized as one of the finest marine plants available. Kelp Meal is a...

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$105.99
$84.98
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Down To Earth Down To Earth Bio-Live - 50 lb
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$95.09
$77.02

Down To Earth Bio-Live - 50 lb

Down To Earth

A rich, organic fertilizer mix infused with a generous amount of beneficial bacteria and Mycorrhizal fungi to stimulate rooting, vigor and optimum ...

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$95.09
$77.02
Save 19%
Cutting Edge Solutions Cutting Edge Plant Amp, 6 gal
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$350.00
$280.54

Cutting Edge Plant Amp, 6 gal

Cutting Edge Solutions

For a shot of calcium, try Cutting Edge Plant Amp! It’s pure calcium, chelated with organic acids to improve plant absorption so plants will have a...

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$350.00
$280.54
Save 20%
Down To Earth Down To Earth Granular Humic Acid - 25 lb
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$22.95
$17.39

Down To Earth Granular Humic Acid - 25 lb

Down To Earth

A highly concentrated source of humic acids ideal for use on fields, turf and vegetable gardens. Derived from the ancient remains of decomposed org...

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$22.95
$17.39
Save 24%
Down To Earth Down To Earth Feather Meal - 50 lb
Save 32%
$92.95
$63.18

Down To Earth Feather Meal - 50 lb

Down To Earth

Feather Meal is a great source of slow release Nitrogen that is perfect for heavy feeders like corn, cole crops and leafy green vegetables. Incorpo...

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$92.95
$63.18
Save 32%
Down To Earth Down To Earth Blood Meal - 50 lb
Save 33%
$147.95
$99.50

Down To Earth Blood Meal - 50 lb

Down To Earth

A high Nitrogen source, our Blood Meal is guaranteed to promote rapid, green growth. A wonderful fertilizer for heavy feeders like corn, spinach, s...

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$147.95
$99.50
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Grow More Grow More Mendocino Flower & Bloom (6-30-30) 25 lb
Save 16%
$68.75
$57.75

Grow More Mendocino Flower & Bloom (6-30-30) 25 lb

Grow More

Grow More's Mendocino Producer's Choice line of fertilizers are the most advanced powders we've ever created. They are 100% water soluble formulas ...

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$68.75
$57.75
Save 16%
Espoma Garden Gypsum, 6 lb
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$8.49
$8.30

Garden Gypsum, 6 lb

Espoma

Espoma’s Garden Gypsum loosens heavy clay soils and helps cure “turf burns” from ice-melters. This soil amendment is pelletized for easy application.

$8.49
$8.30
Save 2%
BioAg Ful-Power, 5 gal
Save 33%
$180.00
$121.50

Ful-Power, 5 gal

BioAg

The high-quality humic acid in liquid Ful-Power chelates minerals and prevents nutrients from forming insoluble precipitates in growing medium, inc...

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$180.00
$121.50
Save 33%
CYCO Cyco Grow B, 20 L
Save 30%
$98.00
$68.43

Cyco Grow B, 20 L

CYCO

Cyco Grow A and B give support to a plants natural growth by supplying a range of macro and micro nutrients, which are needed to give a plant the b...

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$98.00
$68.43
Save 30%
CYCO Cyco Grow A, 20 L
Save 30%
$98.00
$68.43

Cyco Grow A, 20 L

CYCO

Cyco Grow A and B give support to a plants natural growth by supplying a range of macro and micro nutrients, which are needed to give a plant the b...

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$98.00
$68.43
Save 30%
FoxFarm Big Bloom Liquid Concentrate 1 pt
Save 43%
$16.95
$9.66

Big Bloom Liquid Concentrate 1 pt

Fox Farm

Big Bloom® is a Natural & Organic Blossom Builder. Our special, micro-brewed formula incorporates earthworm castings, bat guano and other high ...

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$16.95
$9.66
Save 43%
Botanicare Botanicare Pure Blend Tea 5 Gallon
Save 33%
$141.95
$95.78

Botanicare Pure Blend Tea 5 Gallon

Botanicare

Pure Blend Tea (formerly Pure Blend Original Grow & Bloom). Pure Blend Tea combines the key elements of both Pure Blend Original Grow and Bloom...

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$141.95
$95.78
Save 33%
Down To Earth Down To Earth Organic Soybean Meal - 40 lb
Save 22%
$81.95
$63.66

Down To Earth Organic Soybean Meal - 40 lb

Down To Earth

Soybean Meal is an outstanding source of slow release Nitrogen for promoting vegetative growth and early plant development. Our Soybean Meal is der...

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$81.95
$63.66
Save 22%
Down To Earth Down To Earth Granular Humic Acid - 50 lb
Save 23%
$35.95
$27.62

Down To Earth Granular Humic Acid - 50 lb

Down To Earth

A highly concentrated source of humic acids ideal for use on fields, turf and vegetable gardens. Derived from the ancient remains of decomposed org...

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$35.95
$27.62
Save 23%
Down To Earth Down To Earth Bone Meal - 50 lb
Save 17%
$70.95
$58.91

Down To Earth Bone Meal - 50 lb

Down To Earth

A wonderful source of Phosphorus and Calcium for flowering plants, trees and ornamentals, Bone Meal is recognized as the ideal organic fertilizer w...

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$70.95
$58.91
Save 17%

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