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Nutrients & Supplements

Soil Amendments
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128
Emerald Harvest Sturdy Stalk | 2.5gal
In stock
$165.60 $240.00 -31%
Save 17%
Grotek Cal-Max, 23 L
In stock
$164.12 $198.22 -17%
CYCO Platinum Series Zyme 0.01-0.3-0.2 - 5L - Oklahoma Label
Out of stock
$163.44
Optic Foliar SWITCH, 10 L
In stock
$162.91 $216.99 -25%
Mr. B's Green Trees Azospirillum Super Concentrate, 10 lbs
In stock
$162.56 $451.36 -64%
Grotek Monster Bloom, 2.5 kg
In stock
$162.52 $211.99 -23%
Grotek Monster Grow Pro, 2.5 kg
In stock
$162.52 $211.99 -23%
Save 15%
Dark Energy, 1 gal
In stock
$162.32 $191.99 -15%
BioAg Bio-SuperSil Soluble Silicon | 2.5gal - 0.5% Nanostructured Silicon
In stock
$162.11 $219.92 -26%
Save 16%
Xtreme Gardening Mykos Root Paks | 500ct
Out of stock
$161.27 $192.48 -16%
CYCO Platinum Series Silica 0-0-3 - 20L
In stock
$160.63 $232.43 -31%
Remo Micro, 20 L
In stock
$160.29 $231.99 -31%
Save 16%
G10 Gravitation #10, 1 gal
In stock
$159.83 $189.99 -16%
Botanicare Cal-Mag Plus 2-0-0 - 5gal
In stock
$159.60 $257.59 -38%
Remo Magnifical, 20 L
In stock
$158.89 $229.99 -31%
Roots Organics CalMag, 2.5 gal
In stock
$157.09 $214.31 -27%
HEAVY 16 Bud A, 6 gal
In stock
$156.48 $226.79 -31%
HEAVY 16 Bud B, 6 gal
In stock
$156.48 $226.79 -31%
HEAVY 16 Veg A, 6 gal
In stock
$156.48 $226.79 -31%
HEAVY 16 Veg B, 6 gal
In stock
$156.48 $226.79 -31%
HEAVY 16 Prime, 1 gal
In stock
$155.39 $225.22 -31%
Humboldt Honey Organic ES, 2.5 gal
In stock
$154.44 $212.99 -27%
Technaflora B.C. Boost, 20 L
In stock
$154.34 $223.99 -31%
Soul Amino-Aide, 1 gal
In stock
$153.32 $201.99 -24%
Soul Big Swell, 1 gal
In stock
$153.32 $201.99 -24%
BioAG Ful-Power Purified Fulvic Acid | 5gal - OMRI Listed
In stock
$153.11 $201.99 -24%
Save 19%
FoxFarm Dirty Dozen Starter Kit
In stock
$151.95 $187.76 -19%
Nectar for The Gods Persephone's Palate | 5gal
In stock
$151.62 $193.99 -22%
House & Garden Amino Treatment, 1 L
In stock
$151.43 $199.50 -24%
Cutting Edge Solutions Plant Amp, 2.5 gal
In stock
$151.32 $210.99 -28%
Cutting Edge Solutions Uncle John's Blend, 2.5 gal
In stock
$151.32 $210.99 -28%
Cutting Edge Solutions Uncle John's Blend, 2.5 gal (OREGON ONLY)
In stock
$151.32 $210.99 -28%
Bloom Khaos, 2.5 gal
In stock
$151.03 $208.49 -28%
Grotek Blossom Blaster 1-4-0 | 1kg
In stock
$150.67 $436.99 -66%
Grotek Root Force 1-0-0 | 4L
In stock
$150.59
FoxFarm Big Bloom Fertilizer 0-0.5-0.7 | 2.5gal - Concentrate - OMRI Listed
In stock
$150.25 $187.99 -20%
FoxFarm Big Bloom Liquid Concentrate, 2.5 gal
In stock
$149.36 $191.31 -22%
Growth Science Nutrients Rock Solid, 6 gal
In stock
$149.01 $298.99 -50%
Cutting Edge Solutions Mag-Amped, 2.5 gal
In stock
$148.58 $210.99 -30%
CYCO 5L Supa Stiky (2/CS)
In stock
$146.38 $210.69 -31%
HDI Europonic Nitrozime Marine Algae Extract | 1gal
In stock
$146.34 $214.99 -32%
Save 18%
HDI Ionic Bloom Plant Nutrient 3-2-6 | 5gal
In stock
$145.59 $177.83 -18%
Save 18%
HDI Ionic PK BOOST Plant Nutrient 0-5-6 | 5gal
Out of stock
$145.59 $177.83 -18%
Save 18%
HDI Ionic Grow Plant Nutrient 3-1-5 | 5gal
In stock
$145.59 $177.83 -18%
Save 18%
HDI Ionic Bloom for Soil Premium Plant Nutrient 2-2-5 | 5gal
Out of stock
$145.59 $177.83 -18%
Save 18%
HDI MotherPlant Nutrients Part A | 5gal
In stock
$145.59 $177.83 -18%
Save 18%
HDI MotherPlant Nutrients Part B | 5gal
In stock
$145.59 $177.83 -18%
General Organics BioBud 0.5-0.1-1 - 1gal
In stock
$145.36 $196.38 -26%
Technaflora Thrive Alive B1 Green, 4 L
In stock
$144.96 $200.99 -28%
Mad Farmer Oxygenator, 6 gal
In stock
$144.89 $209.99 -31%
Cutting Edge Solutions Micro, 6 gal
In stock
$144.62 $199.99 -28%
Save 18%
Crystal Burst, 2.5 gal
In stock
$144.18 $174.99 -18%
Roots Organics Oregonism XL, 3 lbs
In stock
$143.88 $190.07 -24%
Botanicare Sweet Berry Plant Food | 2.5gal
In stock
$143.84 $210.73 -32%
Gaia Mania, 5 gal
In stock
$143.82 $208.49 -31%
Nectar for the Gods Persephone's Palate, 5 gal
In stock
$143.82 $208.49 -31%
Save 17%
Royal Gold Crown Jewels Bloom 1-4-2, 40 lb
Out of stock
$143.51 $172.99 -17%
Save 17%
Royal Gold Crown Jewels Grow 3-2-2, 40 lb
Out of stock
$143.51 $172.99 -17%
Botanicare Liquid Karma 0.1-0.1-0.5 - 2.5gal
In stock
$142.29 $208.24 -32%
Biobizz Top-Max, 5 L
In stock
$142.13 $205.99 -31%
TNB Naturals pH UP, 1 lb, case of 30
Out of stock
$141.45 $599.70 -76%
Save 16%
Xtreme Gardening Mykos Natural Root Enhancer | 24pc - 100g - Pouch
In stock
$141.39 $168.75 -16%
Grotek Heavy Bud Pro 1-0-3 | 10L
In stock
$140.50 $257.39 -45%
Big Foot Ecto-Mycorrhizae | 2oz
In stock
$139.84 $199.80 -30%
Grow More Mendocino Hawaiian Big Bud, 2.5 gal
Out of stock
$139.09 $191.99 -28%
Botanicare Silica Blast 0-0-0.5 - 5gal
In stock
$139.05 $225.03 -38%
Grotek Synergy | 400g
In stock
$138.49
Royal Gold Crown Jewels Bloom 1-4-2 | 40lb
In stock
$138.19 $182.99 -24%
Royal Gold Crown Jewels Grow 3-2-2 | 40lb
In stock
$138.19 $182.99 -24%
CYCO 20L Potash Plus (32/PL)
In stock
$138.00 $222.03 -38%
FoxFarm Open Sesame, 15 lbs
In stock
$138.00 $251.84 -45%
Roots Organics Rain, 1 gal
In stock
$137.21 $189.36 -28%
Technaflora Thrive Alive B1 Red, 4 L
In stock
$136.90 $182.99 -25%
Remo Bloom, 20 L
In stock
$136.59 $197.99 -31%
Remo Grow, 20 L
In stock
$136.59 $197.99 -31%
Save 17%
Snow Storm Ultra, 1 gal
In stock
$136.29 $164.99 -17%
BioAg Ful-Power®, 5 gal (ID,IL,IA,KS,MN,NE,OH,OK,OR)
In stock
$136.14 $196.99 -31%
Roots Organics Buddha Bloom, 2.5 gal
In stock
$136.00 $179.17 -24%
Roots Organics Buddha Grow, 2.5 gal
In stock
$136.00 $179.17 -24%
BioAg Ful-Power®, 5 gal
In stock
$135.87 $196.99 -31%
Save 16%
Humboldt County's Own Sonic Bloom, 5 lbs
In stock
$135.74 $161.99 -16%
House & Garden Hydro A, 60 L
In stock
$135.56 $363.99 -63%
House & Garden Multi Zen, 5 L
In stock
$135.49 $178.50 -24%
Nectar for The Gods Medusa's Magic Soil Nutrient 2-5-2 | 5gal
In stock
$134.76 $172.99 -22%
Nectar for The Gods Mega Morpheus Guano Tea 0-2-0 | 5gal
In stock
$134.76 $172.99 -22%
Nectar for The Gods The Kraken Crab & Shrimp 0-4-0 | 5gal
Out of stock
$134.76 $172.99 -22%
Save 19%
Grotek Vitamax Plus, 10 L
In stock
$134.43 $166.99 -19%
Save 17%
Rainbow Mix "PRO" Bloom 2-14-2, 40 lbs
Out of stock
$134.00 $160.99 -17%
Grotek Monster Grow Pro 18-36-1 | 2.5kg
In stock
$133.93 $244.99 -45%
Cutting Edge Solutions Louder Powder Grow A (15-0-0), 25 lb Bag
In stock
$133.90 $199.99 -33%
Cutting Edge Solutions Louder Powder Grow B (8-13-31), 25 lb Bag
In stock
$133.90 $199.99 -33%
Cutting Edge Solutions Louder Powder Bloom A (14-0-0), 25 lb Bag
In stock
$133.90 $199.99 -33%
Cutting Edge Solutions Louder Powder Bloom B (0-25-24), 25 lb Bag
In stock
$133.90 $199.99 -33%
Mad Farmer Be One, 2.5 gal
In stock
$133.89 $209.99 -36%
Grotek Growth Booster, 300 g
In stock
$133.61 $165.99 -20%
Technaflora B.C. Bloom, 20 L
In stock
$133.31 $179.99 -26%
Big Foot Mycorrhizae Granular | 10lb - Granules
In stock
$133.27 $195.99 -32%
FoxFarm Soluble Fertilizer Trio Pack | 3pk - 1lb each
In stock
$132.98 $176.99 -25%
General Hydroponics FloraMicro 5-0-1 - 6gal
In stock
$132.94 $214.28 -38%
House & Garden Hydro B, 60 L
Out of stock
$132.84 $363.99 -64%
Growth Science Organics Grow, 2.5 gal
In stock
$132.82 $174.99 -24%
FoxFarm Soluble 1 lb Trio Pack
In stock
$132.52 $164.90 -20%
Aptus Massboost, 1 L
In stock
$132.25 $182.53 -28%
Botanicare Vitamino 1-0-0 - 2.5gal
In stock
$131.62 $193.09 -32%
Big Foot Mycorrhizae Gold | 32oz
In stock
$131.44 $206.99 -36%
Save 18%
HDI Clonex Clone Solution | 2.5gal
In stock
$131.03 $160.05 -18%
Save 18%
HDI Clonex Rooting Gel | 1 quart
In stock
$131.03 $160.05 -18%
Down to Earth Granular Root Zone | 5lb - OMRI Listed
In stock
$130.52 $399.49 -67%
Mad Farmer Mother Of All Bloom, 10 lb (4.5 kg)
In stock
$130.41 $209.99 -38%
Roots Organics Ancient Amber, 5 gal
In stock
$130.41 $188.99 -31%
Save 17%
Hygrozyme Horticultural Enzyme Formula, 4 L
In stock
$130.07 $155.99 -17%
Emerald Harvest Micro | 6gal
In stock
$129.72 $188.00 -31%
Emerald Harvest Micro, 6 gal
In stock
$129.72 $188.00 -31%
Biobizz Alg-A-Mic, 5 L
In stock
$129.71 $187.99 -31%
Technaflora MagiCal, 10 L
In stock
$129.55 $178.99 -28%
Down to Earth Blood Meal 12-0-0 | 50lb - OMRI Listed
In stock
$129.33 $176.99 -27%
General Hydroponics Liquid KoolBloom 0-10-10 - 2.5gal
In stock
$128.93 $188.44 -32%
Remo VeloKelp, 10 L
In stock
$128.80 $280.00 -54%
Save 13%
HYGROZYME Horticultural Horticulture Enzyme Formula | 4L (1.05gal)
In stock
$128.52 $146.95 -13%
Grotek Vitamax Pro 1-1-1 | 10L
In stock
$128.51 $170.39 -25%
FoxFarm Cultivation Nation Cal-Mag, 5 gal
Out of stock
$127.88 $193.58 -34%
SUPERthrive Pure Neem Oil Organic Leaf Polish | 1gal
In stock
$127.75 $193.74 -34%
Athena's Aminas, 5 gal
In stock
$127.43 $184.99 -31%
Hygeia's Hydration, 5 gal
Out of stock
$127.43 $184.99 -31%
Medusa's Magic, 5 gal
In stock
$127.43 $184.99 -31%
Mega Morpheus, 5 gal
In stock
$127.43 $184.99 -31%
The Kraken, 5 gal
In stock
$127.43 $184.99 -31%
Save 9%
MegaPhos SP Phosphorus Solubilizing Microbe | 1lb - OMRI Listed
Out of stock
$127.33 $140.40 -9%
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