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Collection: Additives & Supplements

Nutrients that are great supplements to a base nutrient but do not contain complete plant nutrition.

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Amendments (3 products)
Athena Nutrients (4 products)
Aurora/Soul Nutrients (1 product)
BioAg Nutrients (2 products)
Biobizz Nutrients (10 products)
Botanicare Nutrients (13 products)
CANNA Nutrients (10 products)
Cutting Edge Nutrients (10 products)
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Fish Head Farms (4 products)
FoxFarm Nutrients (14 products)
Front Row Ag Nutrients (3 products)
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Grean Bicycles (1 product)
GREASE Nutrients (7 products)
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Grow More Nutrients (1 product)
Heavy16 Nutrients (3 products)
House & Garden Nutrients (11 products)
Media Amendments (2 products)
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NPK Industries (26 products)
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Plagron Nutrients (2 products)
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Real Growers (1 product)
SIPCO Nutrients (3 products)
South Cascade Organics (3 products)

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Athena Ag (4 products)
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NPK Industries (26 products)
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Real Growers (1 product)
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SIPCO (3 products)
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South Cascade Organics (3 products)

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CANNA Nutrients (10 products)
Cutting Edge Nutrients (10 products)
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Down to Earth (3 products)
Ecological Laboratories (3 products)
Fish Head Farms (4 products)
Foxfarm (14 products)
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Grow More (1 products)
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Optic Foliar (13 products)
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167 products

House & Garden Amino Treatment 100 ml

Sold out

House & Garden Amino Treatment 100 ml

Vendor:
House & Garden

Regular price $37.12

Regular price ~~$37.49~~ Sale price $37.12

Sold out
Fish Sh!t Soil Conditioner 500 mL

Sold out

Fish Sh!t Soil Conditioner 500 mL

Vendor:
Fish Head Farms

Regular price $48.29

Regular price ~~$56.29~~ Sale price $48.29

Sold out
Fish Sh!t Soil Conditioner 250 mL

Sold out

Fish Sh!t Soil Conditioner 250 mL

Vendor:
Fish Head Farms

Regular price $28.50

Regular price ~~$33.73~~ Sale price $28.50

Sold out
Cutting Edge Solutions Mag Amped Gallon

Sold out

Cutting Edge Solutions Mag Amped Gallon

Vendor:
Cutting Edge Solutions

Regular price $104.98

Regular price ~~$103.99~~ Sale price $104.98

Sold out
Mag Amped Quart

Sale

Mag Amped Quart

Vendor:
Cutting Edge Solutions

Regular price $34.98

Regular price ~~$34.99~~ Sale price $34.98

Sale
Uncle John's Blend Gallon

Sold out

Uncle John's Blend Gallon

Vendor:
Cutting Edge Solutions

Regular price $104.98

Regular price ~~$103.99~~ Sale price $104.98

Sold out
Canna Boost 5 L

Sold out

Canna Boost 5 L

Vendor:
CANNA Continental

Regular price $448.69

Regular price ~~$595.22~~ Sale price $448.69

Sold out
Canna Rhizotonic 5 L

Sold out

Canna Rhizotonic 5 L

Vendor:
CANNA Continental

Regular price $315.12

Regular price ~~$338.03~~ Sale price $315.12

Sold out
Canna PK 13-14 - 250 mL

Sold out

Canna PK 13-14 - 250 mL

Vendor:
CANNA Continental

Regular price $8.24

Regular price ~~$8.83~~ Sale price $8.24

Sold out
GREASE Yellow Label

Sale

GREASE Yellow Label

Vendor:
Fractal Growth

Regular price From $74.97

Regular price ~~$93.00~~ Sale price From $74.97

Sale
Cha Ching 2lbs.

Cha Ching 2lbs.

Vendor:
Foxfarm

Regular price $99.26

Regular price ~~$97.99~~ Sale price $99.26
Open Sesame 2lbs.

Open Sesame 2lbs.

Vendor:
Foxfarm

Regular price $98.40

Regular price ~~$97.99~~ Sale price $98.40
Heavy16 Fire 16oz (500ml)

Heavy16 Fire 16oz (500ml)

Vendor:
Heavy16

Regular price $103.94

Regular price ~~$68.24~~ Sale price $103.94
Heavy16 Roots 16oz (500ml)

Heavy16 Roots 16oz (500ml)

Vendor:
Heavy16

Regular price $103.94

Regular price ~~$68.24~~ Sale price $103.94
House and Garden Roots Excelerator Gold 500 mL

Sale

House and Garden Roots Excelerator Gold 500 mL

Vendor:
House & Garden

Regular price $112.20

Regular price ~~$142.80~~ Sale price $112.20

Sale
Hydroplex Bloom 1 qt

Hydroplex Bloom 1 qt

Vendor:
Botanicare

Regular price $54.45

Regular price ~~$50.89~~ Sale price $54.45
Front Row Ag Triologic 500 mL Root Inoculant

Sale

Front Row Ag Triologic 500 mL Root Inoculant

Vendor:
Solstice Ag

Regular price $72.57

Regular price ~~$79.00~~ Sale price $72.57

Sale
Front Row Ag Si Qt.

Sale

Front Row Ag Si Qt.

Vendor:
Solstice Ag

Regular price $72.64

Regular price ~~$85.00~~ Sale price $72.64

Sale
Optic Foliar Evios 250mL

Sale

Optic Foliar Evios 250mL

Vendor:
Optic Foliar

Regular price $17.95

Regular price ~~$24.95~~ Sale price $17.95

Sale
Biobizz Acti-Vera - Aloe Vera Derrived Plant Nutrient Additive 5 L

Sale

Biobizz Acti-Vera - Aloe Vera Derrived Plant Nutrient Additive 5 L

Vendor:
Biobizz

Regular price $139.29

Regular price ~~$198.99~~ Sale price $139.29

Sale

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CO2 Swaps - $12.49 + Tax

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