All categories
Complete Kits
Climate
Grow Media
Water
Lighting
Nutrients
Plant Care
Containers
Propagation
Seeds / Live Plants / Mushrooms
YRG Gear
Education
Weekly Specials
0
Home
All Products
Complete Kits
Hydroponic Starter Kits
Propagation Starter Kits
Climate
Tents & Greenhouses
Tarps
Tents
Greenhouses
Air Filtration & Odor Control
CO2 Enrichment
Controllers & Timers
Fans & Blowers
Ventilation & Ducting
Grow Media
Clay Pebbles
Coco Coir
Compost
Perlite
Rockwool
Soil
Vermiculite
Worm Castings
Water
Air Pumps & Stones
Deep Water Culture
Floor Trays & Flood Tables
Reservoirs & Tanks
Systems
Tubing & Fittings
Water Filtration & Treatment
Water Pumps
Lighting
Fluorescent
High Intensity Discharge (HID)
Ballasts
Ceramic Metal Halide (CMH)
Metal Halide (MH)
High Pressure Sodium (HPS)
Wings, Hoods & Reflectors
Light Emitting Diode (LED)
Lighting Accessories
Nutrients
Grow Nutrients
Bloom Nutrients
Micro Nutrients
All-Stage Nutrients
Root Enhancers
Supplements
Cal-Mag
Compost Tea
Dry Amendments
Fish & Marine
Flush & Rinse
Microbes & Enzymes
Seaweed and Kelp
Silica
Sweetners & Finishers
Plant Care
Harvest Solutions
Measuring & Dosing
Meters & Testing
Miscellaneous
Pest & Disease Control
pH Control
Pruning Shears & Tools
Sprayers & Watering Cans
Trellis Netting & Plant Support
Containers
Buckets
Pots & Baskets
Saucers & Risers
Propagation
Cloning Accessories
Cloning Gels & Rooting Hormones
Cloning Systems
Seedling Heat Mats
Trays, Domes & Root Cubes
Seeds / Live Plants / Mushrooms
Live Plants
Mushrooms
Seeds
YRG Gear
Apparel
Gift Cards
Education
Coffee & Clones
Weekly Specials
Clearance Items
Login / Register
✕
Cart
items
No products found...
Login
Log in if you have an account
Login
Dont have an account?
Register
Forgot your password?
Home
Nutrients
Supplements
Supplements
Showing 25 - 48 of 126
Default
Popularity
Newest products
Lowest price
Highest price
Name ascending
Name descending
100
More filters
✕
Price
Min: $
0
Max: $
250
Categories
Complete Kits
Hydroponic Starter Kits
(6)
Propagation Starter Kits
(2)
Climate
Tents & Greenhouses
(77)
Tarps
(13)
Tents
(63)
Greenhouses
(1)
Air Filtration & Odor Control
(23)
CO2 Enrichment
(9)
Controllers & Timers
(23)
Fans & Blowers
(32)
Ventilation & Ducting
(33)
Grow Media
Clay Pebbles
(10)
Coco Coir
(17)
Compost
(4)
Perlite
(7)
Rockwool
(10)
Soil
(49)
Vermiculite
(4)
Worm Castings
(2)
Water
Air Pumps & Stones
(26)
Deep Water Culture
(8)
Floor Trays & Flood Tables
(34)
Reservoirs & Tanks
(14)
Systems
(92)
Tubing & Fittings
(143)
Water Filtration & Treatment
(26)
Water Pumps
(20)
Lighting
Fluorescent
(37)
High Intensity Discharge (HID)
(32)
Ballasts
(4)
Ceramic Metal Halide (CMH)
(5)
Metal Halide (MH)
(5)
High Pressure Sodium (HPS)
(12)
Wings, Hoods & Reflectors
(6)
Light Emitting Diode (LED)
(88)
Lighting Accessories
(30)
Nutrients
Grow Nutrients
(90)
Bloom Nutrients
(138)
Micro Nutrients
(25)
All-Stage Nutrients
(57)
Root Enhancers
(39)
Supplements
(217)
Cal-Mag
(27)
Compost Tea
(7)
Dry Amendments
(55)
Fish & Marine
(14)
Flush & Rinse
(13)
Microbes & Enzymes
(33)
Seaweed and Kelp
(13)
Silica
(10)
Sweetners & Finishers
(49)
Plant Care
Harvest Solutions
(43)
Measuring & Dosing
(23)
Meters & Testing
(43)
Miscellaneous
(22)
Pest & Disease Control
(69)
pH Control
(33)
Pruning Shears & Tools
(18)
Sprayers & Watering Cans
(17)
Trellis Netting & Plant Support
(44)
Containers
Buckets
(15)
Pots & Baskets
(100)
Saucers & Risers
(36)
Propagation
Cloning Accessories
(6)
Cloning Gels & Rooting Hormones
(19)
Cloning Systems
(6)
Seedling Heat Mats
(5)
Trays, Domes & Root Cubes
(40)
Seeds / Live Plants / Mushrooms
Live Plants
(130)
Mushrooms
(8)
Seeds
(275)
YRG Gear
Apparel
(6)
Gift Cards
(3)
Education
Coffee & Clones
(61)
Weekly Specials
Clearance Items
(53)
Brands
All brands
Advanced Nutrients
Botanicare
Build-A-Soil
BushDoctor
CYCO
Cultured Biologix
Diamond K
Down To Earth
Emerald Harvest
Espoma
Fish Head Farms
FloraFlex
FloraMax
FoxFarm
Gaia Green
GreenPlanet Nutrients
Grow More
Mammoth Microbes
Microbe Life Hydroponics
Microbial Mass
Mighty MO Microbes
Monterey Lawn & Garden Products
NPK Industries
Nectar for the Gods
Real Growers
Remo Nutrients
Roots Organics
Rootwise
URB Natural
Advanced Nutrients
Advanced Nutrients Sensi Cal-Mag Xtra (1L)
•
•
•
•
•
Article code
2336
Select:
*
Quantity:
+
-
$19.95
Add to cart
Advanced Nutrients
Advanced Nutrients Sensi Cal-Mag Xtra (1L)
•
•
•
•
•
$19.95
Advanced Nutrients
Advanced Nutrients Sensi Cal-Mag Xtra (500mL)
•
•
•
•
•
Article code
2282
Select:
*
Quantity:
+
-
$10.95
Add to cart
Advanced Nutrients
Advanced Nutrients Sensi Cal-Mag Xtra (500mL)
•
•
•
•
•
$10.95
Advanced Nutrients
Advanced Nutrients Sensizyme (1L)
•
•
•
•
•
Article code
2281
Select:
*
Quantity:
+
-
$37.95
Add to cart
Advanced Nutrients
Advanced Nutrients Sensizyme (1L)
•
•
•
•
•
$37.95
Advanced Nutrients
Advanced Nutrients Sensizyme (500mL)
•
•
•
•
•
Article code
2280
Select:
*
Quantity:
+
-
$20.88
Add to cart
Advanced Nutrients
Advanced Nutrients Sensizyme (500mL)
•
•
•
•
•
$20.88
Advanced Nutrients
Advanced Nutrients Tarantula (1L)
•
•
•
•
•
Article code
2227
Select:
*
Quantity:
+
-
$82.95
Add to cart
Advanced Nutrients
Advanced Nutrients Tarantula (1L)
•
•
•
•
•
$82.95
Advanced Nutrients
Advanced Nutrients Tarantula (500ml)
•
•
•
•
•
Article code
2311
Select:
*
Quantity:
+
-
$45.95
Add to cart
Advanced Nutrients
Advanced Nutrients Tarantula (500ml)
•
•
•
•
•
$45.95
Advanced Nutrients
Advanced Nutrients True Organics Ancient Earth OIM (1L)
•
•
•
•
•
Article code
2333
Select:
*
Quantity:
+
-
$30.95
Add to cart
Advanced Nutrients
Advanced Nutrients True Organics Ancient Earth OIM (1L)
•
•
•
•
•
$30.95
Advanced Nutrients
Advanced Nutrients True Organics Ancient Earth OIM (500mL)
•
•
•
•
•
Article code
2231
Select:
*
Quantity:
+
-
$16.95
Add to cart
Advanced Nutrients
Advanced Nutrients True Organics Ancient Earth OIM (500mL)
•
•
•
•
•
$16.95
Botanicare
Botanicare Cal-Mag Plus (1qt)
•
•
•
•
•
Article code
0428
Select:
*
Quantity:
+
-
$26.95
Add to cart
Botanicare
Botanicare Cal-Mag Plus (1qt)
•
•
•
•
•
$26.95
Botanicare
Botanicare Cal-Mag Plus (2.5gal)
•
•
•
•
•
Article code
3895
Select:
*
Quantity:
+
-
$130.95
Add to cart
Botanicare
Botanicare Cal-Mag Plus (2.5gal)
•
•
•
•
•
$130.95
Botanicare
Botanicare Hydroguard (1qt)
•
•
•
•
•
Article code
0221
Select:
*
Quantity:
+
-
$41.95
Add to cart
Botanicare
Botanicare Hydroguard (1qt)
•
•
•
•
•
$41.95
Botanicare
Botanicare Sweet Berry (1gal)
•
•
•
•
•
Article code
3756
Select:
*
Quantity:
+
-
$87.95
Add to cart
Botanicare
Botanicare Sweet Berry (1gal)
•
•
•
•
•
$87.95
Botanicare
Botanicare Sweet Carbo Raw (qt)
•
•
•
•
•
Article code
1882
Select:
*
Quantity:
+
-
$32.95
Add to cart
Botanicare
Botanicare Sweet Carbo Raw (qt)
•
•
•
•
•
$32.95
Build-A-Soil
Build-A-Bloom
•
•
•
•
•
Article code
1985
Select:
*
Quantity:
+
-
$32.95
Add to cart
Build-A-Soil
Build-A-Bloom
•
•
•
•
•
$32.95
Build-A-Soil
BuildASoil Agsil16H Potassium Silicate (1lb)
•
•
•
•
•
Article code
1241
Select:
*
Quantity:
+
-
$20.00
Add to cart
Build-A-Soil
BuildASoil Agsil16H Potassium Silicate (1lb)
•
•
•
•
•
$20.00
Build-A-Soil
BuildASoil Alfalfa Meal Organic (1.5lb)
•
•
•
•
•
Article code
1244
Select:
*
Quantity:
+
-
$12.00
Add to cart
Build-A-Soil
BuildASoil Alfalfa Meal Organic (1.5lb)
•
•
•
•
•
$12.00
Build-A-Soil
BuildASoil Craft Blend - Nutrient Pack (3lb)
•
•
•
•
•
Article code
1252
Select:
*
Quantity:
+
-
$22.95
Add to cart
Build-A-Soil
BuildASoil Craft Blend - Nutrient Pack (3lb)
•
•
•
•
•
$22.95
Build-A-Soil
BuildASoil Crustacean Meal (2lb)
•
•
•
•
•
Article code
1246
Select:
*
Quantity:
+
-
$12.00
Add to cart
Build-A-Soil
BuildASoil Crustacean Meal (2lb)
•
•
•
•
•
$12.00
Build-A-Soil
BuildASoil Fish Bone Meal - Concentrates (2lb)
•
•
•
•
•
Article code
1250
Select:
*
Quantity:
+
-
$12.00
Add to cart
Build-A-Soil
BuildASoil Fish Bone Meal - Concentrates (2lb)
•
•
•
•
•
$12.00
Build-A-Soil
BuildASoil Glacial Rock Dust (4lb)
•
•
•
•
•
Article code
1242
Select:
*
Quantity:
+
-
$12.00
Add to cart
Build-A-Soil
BuildASoil Glacial Rock Dust (4lb)
•
•
•
•
•
$12.00
Build-A-Soil
BuildASoil Kelp Meal - Organic (3lb)
•
•
•
•
•
Article code
1243
Select:
*
Quantity:
+
-
$20.95
Add to cart
Build-A-Soil
BuildASoil Kelp Meal - Organic (3lb)
•
•
•
•
•
$20.95
Build-A-Soil
BuildASoil Premium Insect Frass (4lb)
•
•
•
•
•
Article code
1254
Select:
*
Quantity:
+
-
$30.95
Add to cart
Build-A-Soil
BuildASoil Premium Insect Frass (4lb)
•
•
•
•
•
$30.95
Build-A-Soil
BuildASoil White Dutch Clover (0.5lb)
•
•
•
•
•
Article code
1249
Select:
*
Quantity:
+
-
$12.00
Add to cart
Build-A-Soil
BuildASoil White Dutch Clover (0.5lb)
•
•
•
•
•
$12.00
BushDoctor
Bushdoctor Kelp Me Kelp You (1qt)
•
•
•
•
•
Article code
0461
Select:
*
Quantity:
+
-
$23.95
Add to cart
BushDoctor
Bushdoctor Kelp Me Kelp You (1qt)
•
•
•
•
•
$23.95
1
2
3
4
5
6