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Nutrients & Supplements

Soil Amendments
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128
Big Foot Root Boost Nitrogen-Fixing Azospirillum | 10oz
In Stock: 121
$27.50
Mad Farmer Get Down, 2.5 gal, case of 2
In Stock: 8
$27.49 $146.99 -81%
Grotek Bud Fuel Pro, 1 L
In Stock: 1217
$27.40 $36.26 -24%
Microbe Life Photosynthesis Plus, 1 qt
In Stock: 107
$27.38 $32.99 -17%
Microbe Life Plus-C, 1 qt (CA)
In Stock: 129
$27.38 $32.99 -17%
FoxFarm Tiger Bloom Buds & Blooms Fertilizer 2-8-4 | 32oz - Concentrate
In Stock: 1426
$27.32 $30.99 -12%
Cutting Edge Solutions Uncle John's Blend, 1 qt
In Stock: 99
$27.32 $34.99 -22%
FoxFarm Grow Big Fertilizer 6-4-4 | 32oz - Concentrate
In Stock: 624
$27.31 $30.99 -12%
DaKine 420 Nitro Nutrients Bloom | 2,000g - (Case of 4)
Out of stock
$27.24 $108.99 -75%
DaKine 420 Nitro Nutrients Grow | 2,000g - (Case of 4)
In Stock: 4
$27.24 $108.99 -75%
House & Garden Top Booster, 1 L
In Stock: 257
$27.23 $36.41 -25%
Growth Science Organics Grow, 6 gal
Out of stock
$27.20 $399.99 -93%
Down to Earth Oyster Shell | 50lb - OMRI Listed
Out of stock
$27.02 $35.99 -25%
PureCrop 16 oz
In Stock: 80
$26.52 $32.00 -17%
House & Garden Magnesium Boost, 1 L
In Stock: 74
$26.22 $38.56 -32%
General Hydroponics FloraNova Grow 7-4-10 - 32oz
In Stock: 880
$26.19 $38.94 -33%
General Hydroponics FloraNova Bloom 4-8-7 - 32oz
In Stock: 1395
$26.19 $38.94 -33%
Emerald Harvest Sturdy Stalk, 1 qt
In Stock: 101
$26.18 $38.50 -32%
Bloom Khaos, 5 gal
Out of stock
$26.00 $382.49 -93%
Grotek Vitamax Pro, 1 L
In Stock: 1037
$25.77 $31.02 -17%
Great White Granular 1, 2.2lbs
In Stock: 88
$25.77 $33.99 -24%
Plant Success King Crab, 4 oz
In Stock: 65
$25.70 $27.99 -8%
Grow More Mendocino Honey, 1 gal
In Stock: 215
$25.69 $33.99 -24%
Grotek Cal-Max, 1 gal
In Stock: 377
$25.69 $45.33 -43%
Rhizoflora Purpinator 0-2-4 - 32oz
In Stock: 68
$25.63
Grotek Cal Max 2-0-0 | 4L - (Case of 4)
In Stock: 54
$25.62 $47.59 -46%
Roots Organics Trinity | 32oz
In Stock: 1
$25.58 $25.99 -2%
Technaflora Thrive Alive B1 Red, 500ml
In Stock: 128
$25.57 $39.96 -36%
Gaia Green Greensand, 1.25 kg Pouch
In Stock: 276
$25.55 $26.49 -4%
House & Garden Amino Treatment, 100 ml
In Stock: 539
$25.49 $37.49 -32%
Emerald Harvest Grow | 1gal - (Case of 4)
In Stock: 25
$25.35 $35.00 -28%
Grotek Blossom Blaster 1-4-0 | 130g
In Stock: 336
$25.21 $74.29 -66%
House & Garden Roots Excelurator Gold, 100 ml
In Stock: 362
$25.20 $39.63 -36%
Mega Morpheus, 5 gal
Out of stock
$25.12 $184.99 -86%
General Hydroponics FloraPro Grow 10-12-22 - 5lb
In Stock: 68
$24.97 $40.25 -38%
General Hydroponics FloraPro Bloom 7-12-27 - 5lb
In Stock: 54
$24.97 $40.25 -38%
Xtreme Mykos Pure Mycorrhizal Inoculum, Wettable Powder, 12 oz
In Stock: 268
$24.92 $34.99 -29%
Microbe Life Photosynthesis Plus-O, 1 qt (OR)
In Stock: 17
$24.87 $32.99 -25%
Soul Sensei Micro, 5 gal
In Stock: 2
$24.83 $182.59 -86%
DaKine 420 Bio Minerals | 2,000g - (Case of 4)
In Stock: 16
$24.74 $98.99 -75%
DaKine 420 CalMag | 2,000g - (Case of 4)
Out of stock
$24.74 $98.99 -75%
DaKine 420 Sticky Icky Enzymes | 500g - (Case of 4)
In Stock: 26
$24.74 $98.99 -75%
SugarDaddy, 1 L
In Stock: 195
$24.74 $33.99 -27%
Emerald Harvest Bloom | 1gal - (Case of 4)
In Stock: 45
$24.51 $35.00 -30%
Coast of Maine Squid All Natural Liquid Plant Food 2-3-0, 1 qt
In Stock: 27
$24.44 $24.99 -2%
FoxFarm Cultivation Nation pH UP, 1 pt, case of 12
In Stock: 313
$24.41 $179.52 -86%
Roots Organics Oregonism XL, 8 oz
In Stock: 90
$24.24 $35.63 -32%
Down to Earth Kelp Meal 1-0.1-2 | 4lb - OMRI Listed
In Stock: 210
$24.22 $33.99 -29%
Xtreme Gardening Mykos Root Paks | 50ct - (Case of 6)
In Stock: 6
$24.04 $26.58 -10%
HYGROZYME Horticultural Horticulture Enzyme Formula | 500mL (16.9oz)
In Stock: 50
$24.04 $24.43 -2%
Down to Earth Liquid Bloom 2-6-5 | 32oz - (Case of 10)
In Stock: 80
$23.99
Neptune's Harvest Kelp Meal Multi-Purpose Plant Food 1-0-2 | 4lb - OMRI Listed - (Case of 6)
In Stock: 36
$23.99 $29.99 -20%
HDI Europonic FossilFuel Liquid Humic Acids | 1gal - (Case of 4)
Out of stock
$23.94 $54.99 -56%
Emerald Harvest Bloom, 1 gal
In Stock: 55
$23.80 $35.00 -32%
Emerald Harvest Grow, 1 gal
In Stock: 43
$23.80 $35.00 -32%
Growth Science Organics Root Magic, 2.5 gal
In Stock: 4
$23.80 $349.99 -93%
Aphrodite's Extraction, 2.5 gal
Out of stock
$23.69 $139.49 -83%
Xtreme Gardening Mykos WP | 12oz - Wettable Powder - (Case of 12)
In Stock: 62
$23.60 $27.07 -13%
House & Garden Magic Green -- 250mL
Out of stock
$23.57 $34.64 -32%
MICROBE Life Hydroponics Vitamins & Amino Acids | 32oz - (Case of 12)
In Stock: 36
$23.50 $34.99 -33%
BioAG Ful-Humix | 300g - (Case of 12)
In Stock: 12
$23.46 $28.71 -18%
BioAG TM-7 | 300g - (Case of 12)
In Stock: 36
$23.46 $28.71 -18%
CYCO Commercial Series Bloom 8-6-11 - 750g
In Stock: 79
$23.39 $66.11 -65%
MICROBE Life Hydroponics Photosynthesis Plus | 32oz - (Case of 12)
In Stock: 24
$23.34 $42.99 -46%
Gaia Green All Purpose, 2 kg Pouch
In Stock: 2223
$23.34 $25.29 -8%
Humboldt Nutrients Master-B, 2.5 gal
In Stock: 1
$23.26 $170.99 -86%
Roots Organics Trinity, 1 qt
In Stock: 16
$23.17 $34.00 -32%
Roots Organics Trinity, 1 qt
In Stock: 341
$23.17 $34.00 -32%
Roots Organics Terp Tea Bloom Booster 3lb
In Stock: 1027
$23.11 $34.56 -33%
FoxFarm Bush Doctor 1-0-0 Cal-Mag Supplement | 32oz - 3% Calcium - 0.9% Magnesium - OMRI Listed - (Case of 12)
In Stock: 480
$22.97 $26.99 -15%
Roots Organics Seabird Guano Powder, 9 lbs
In Stock: 57
$22.77 $33.47 -32%
Roots Organics Elemental | 3lb - (Case of 3)
Out of stock
$22.68 $23.99 -5%
FoxFarm Cultivation Nation pH Up Nutrient Solution Adjuster | 32oz - Raises the pH in Nutrient Solution
In Stock: 84
$22.66 $24.99 -9%
Dyna-Gro Grow, 1 qt
In Stock: 153
$22.64 $25.48 -11%
HDI Clonex Mist Root Promoter | 300mL - (Case of 6)
In Stock: 25
$22.62 $26.32 -14%
FOOP Garden Organic Plant Fertilizer | 32oz - Concentrate - OMRI Listed - (Case of 12)
Out of stock
$22.44 $24.99 -10%
FoxFarm Cultivation Nation Micro Fertilizer 5-0-1 | 32oz - Step 2 for 3-Part Feeding Programs
In Stock: 45
$22.39 $24.99 -10%
General Hydroponics FloraKleen - 1gal
In Stock: 102
$22.37 $33.16 -33%
Botanicare Pure Blend Pro Bloom Formula 2-3-5 - 32oz
In Stock: 229
$22.37 $33.16 -33%
FoxFarm Cha-Ching Soluble Fertilizer 9-50-10 | 6oz Jar
In Stock: 312
$22.37 $23.99 -7%
HDI Clonex Clone Solution | 32oz
In Stock: 1223
$22.32 $26.68 -16%
Key Grow Solutions Green Dragon 0-0-18 | 1gal - (Case of 4)
In Stock: 160
$22.21 $119.99 -81%
Key Grow Solutions Silver Rabbit 7-20-4 | 1gal - (Case of 4)
In Stock: 44
$22.21 $119.99 -81%
FoxFarm Open Sesame Soluble Fertilizer 5-45-19 | 6oz Jar
In Stock: 240
$22.11 $24.99 -12%
Olympus Up, 1 gal
Out of stock
$22.03 $46.49 -53%
Botanicare Pure Blend Pro Soil 1-4-5 - 32oz
In Stock: 398
$21.94 $32.50 -32%
Botanicare Pure Blend Pro Grow Formula 3-2-4 - 32oz
In Stock: 567
$21.94 $32.50 -32%
Optic Foliar Switch, 1 L
In Stock: 9
$21.90 $32.99 -34%
Vegamatrix Prime Zyme, 5 gal
Out of stock
$21.88 $568.99 -96%
Humboldt Nutrients Verde, 1 qt
In Stock: 223
$21.86 $28.99 -25%
General Hydroponics Liquid KoolBloom 0-10-10 - 32oz
In Stock: 375
$21.81 $32.29 -32%
Cutting Edge Solutions Sugaree, 1 qt
In Stock: 276
$21.71 $24.99 -13%
Wiggle Worm Soil Builder Pure Worm Castings Organic Fertilizer | 30lb - OMRI Listed
In Stock: 3069
$21.64 $30.99 -30%
FoxFarm Cultivation Nation pH Down Nutrient Solution Adjuster | 32oz - Lowers the pH in Nutrient Solution
In Stock: 96
$21.53 $24.99 -14%
Roots Organics Elemental, 3 lbs
In Stock: 581
$21.42 $28.61 -25%
HEAVY 16 Finish, 32 oz
In Stock: 2822
$21.41 $31.49 -32%
General Hydroponics ARMOR SI 0-0-4 - 32oz - CA Restriction
In Stock: 99
$21.37 $31.89 -33%
General Hydroponics ARMOR SI 0-0-4 | 32oz
In Stock: 239
$21.37 $31.89 -33%
FoxFarm Happy Frog Soil Conditioner | 3cu ft - West Only | (35/PL)
In Stock: 1992
$21.34 $23.99 -11%
FoxFarm Bush Doctor Liquid Iron Micro-Nutrient 1-0-0 | 16oz - OMRI Listed - (Case of 12)
In Stock: 19
$21.24 $28.49 -25%
Coast of Maine Kelp Meal Organic Plant Food 1-0-1, 4 lbs
Out of stock
$21.22 $22.99 -8%
Olivia's Cloning Solution | 1gal - (Case of 4)
In Stock: 8
$21.20 $37.95 -44%
MICROBE Life Hydroponics Nourish-L Liquid Fertilizer | 16oz - (Case of 12)
Out of stock
$21.16 $31.99 -34%
Coast of Maine Lobster Meal Organic Plant Food 6-2-0, 4 lbs
In Stock: 8
$21.16
Aptus MINERAL-CALMAG, 1 L
In Stock: 129
$21.12 $29.00 -27%
Roots Organics CalMag | 32oz - (Case of 12)
Out of stock
$21.07 $21.99 -4%
Coast of Maine Stonington Blend Organic Plant Food, 4 lb
In Stock: 56
$21.03 $26.99 -22%
FoxFarm Bush Doctor Liquid Iron Micro-Nutrient 1-0-0 | 32oz - OMRI Listed - (Case of 12)
In Stock: 47
$21.00 $50.69 -59%
HDI Clonex Rooting Gel | 100mL- Wide Mouth Bottle
In Stock: 1446
$20.85 $24.90 -16%
Dyna-Gro Bloom, 1 qt
In Stock: 80
$20.77 $26.49 -22%
Dyna-Gro Foliage-Pro, 1 qt
In Stock: 1010
$20.77 $26.49 -22%
FoxFarm Beastie Bloomz Fertilizer 0-50-30 | 6oz - (Case of 12)
In Stock: 588
$20.60 $23.99 -14%
Humboldt Nutrients Master-B, 5 gal
In Stock: 3
$20.47 $300.99 -93%
FoxFarm Big Bloom Fertilizer 0-0.5-0.7 | 32oz - Concentrate - OMRI Listed - (Case of 12)
In Stock: 1470
$20.45 $23.99 -15%
SUPERthrive Bloom Plant Nutrients 3-12-6 | 32oz - (Case of 12)
In Stock: 72
$20.44 $29.11 -30%
BioBizz Fish-Mix 1L
In Stock: 28
$20.40 $27.28 -25%
BioBizz Fish-Mix 1L CA & OR only
In Stock: 14
$20.40 $27.28 -25%
General Hydroponics FloraNectar FruitnFusion 0-0-1 - 32oz
In Stock: 175
$20.36 $30.31 -33%
FoxFarm Marine Cuisine Slow-Release Fertilizer 10-7-7 | 4lb - Bag - (Case of 8)
In Stock: 625
$20.29 $23.99 -15%
Soul Sensei Grow, 5 gal
In Stock: 124
$20.28 $149.06 -86%
Cutting Edge Solutions Mag-Amped, 1 gal
Out of stock
$20.22 $103.99 -81%
Roots Organics Surge | 32oz
In Stock: 29
$20.13 $20.99 -4%
Cutting Edge Solutions Bulletproof Si, 1 qt
In Stock: 87
$20.10 $25.99 -23%
SUPERthrive Mag-Pro Nutritional Supplement 2-15-4 | 32oz - (Case of 12)
In Stock: 71
$20.06 $28.09 -29%
CYCO Platinum Series Dr. Repair 3-0-0 - 1L
In Stock: 295
$20.03 $27.36 -27%
Nectar for The Gods Aphrodite's Extraction Carbon 0-1-0 | 32oz
In Stock: 36
$20.03 $23.99 -17%
Nectar for The Gods Poseidonzime Foliar Spray 0-0-0.5 | 32oz
In Stock: 15
$20.03 $23.99 -17%
Dyna-Gro Pro-TeKt, 1 qt
In Stock: 112
$19.86 $25.50 -22%
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