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Nutrients & Supplements

Soil Amendments
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64
Neptune's Harvest Kelp Meal Multi-Purpose Plant Food 1-0-2 | 4lb - OMRI Listed - (Case of 6)
In Stock: 42
$23.81 $29.99 -21%
HDI Europonic FossilFuel Liquid Humic Acids | 1gal - (Case of 4)
Out of stock
$23.76 $54.99 -57%
Emerald Harvest Bloom, 1 gal
In Stock: 73
$23.62 $35.00 -33%
Growth Science Organics Root Magic, 2.5 gal
In Stock: 8
$23.62 $349.99 -93%
Aphrodite's Extraction, 2.5 gal
Out of stock
$23.52 $139.49 -83%
Xtreme Gardening Mykos WP | 12oz - Wettable Powder - (Case of 12)
In Stock: 72
$23.42 $27.07 -13%
BioAG Ful-Humix | 300g - (Case of 12)
In Stock: 48
$23.29 $28.71 -19%
BioAG TM-7 | 300g - (Case of 12)
In Stock: 36
$23.29 $28.71 -19%
Grotek Vitamax Pro, 1 L
In Stock: 1040
$23.26 $31.02 -25%
CYCO Commercial Series Bloom 8-6-11 - 750g
In Stock: 79
$23.22 $66.11 -65%
Plant Success King Crab, 4 oz
In Stock: 29
$23.19 $27.99 -17%
MICROBE Life Hydroponics Photosynthesis Plus | 32oz - (Case of 12)
In Stock: 84
$23.17 $42.99 -46%
Gaia Green All Purpose, 2 kg Pouch
In Stock: 613
$23.17 $25.29 -8%
Humboldt Nutrients Master-B, 2.5 gal
In Stock: 1
$23.08 $170.99 -87%
Roots Organics Trinity, 1 qt
In Stock: 28
$23.00 $34.00 -32%
FoxFarm Bush Doctor 1-0-0 Cal-Mag Supplement | 32oz - 3% Calcium - 0.9% Magnesium - OMRI Listed - (Case of 12)
In Stock: 456
$22.80 $26.99 -16%
Coast of Maine Kelp Meal Organic Plant Food 1-0-1, 4 lbs
Out of stock
$22.80 $22.99 -1%
Roots Organics Elemental | 3lb - (Case of 3)
Out of stock
$22.52 $23.99 -6%
Xtreme Mykos Pure Mycorrhizal Inoculum, Wettable Powder, 12 oz
In Stock: 300
$22.46 $34.99 -36%
HDI Clonex Mist Root Promoter | 300mL - (Case of 6)
In Stock: 95
$22.45 $26.32 -15%
Coast of Maine Squid All Natural Liquid Plant Food 2-3-0, 1 qt
In Stock: 27
$22.40 $24.99 -10%
SugarDaddy, 1 L
In Stock: 198
$22.32 $33.99 -34%
FOOP Garden Organic Plant Fertilizer | 32oz - Concentrate - OMRI Listed - (Case of 12)
Out of stock
$22.28 $24.99 -11%
General Hydroponics FloraKleen - 1gal
In Stock: 112
$22.21 $30.99 -28%
Botanicare Pure Blend Pro Bloom Formula 2-3-5 - 32oz
In Stock: 262
$22.21 $30.99 -28%
HDI Clonex Clone Solution | 32oz
In Stock: 1296
$22.15 $26.68 -17%
Key Grow Solutions Green Dragon 0-0-18 | 1gal - (Case of 4)
In Stock: 160
$22.05 $119.99 -82%
Key Grow Solutions Silver Rabbit 7-20-4 | 1gal - (Case of 4)
In Stock: 44
$22.05 $119.99 -82%
Cutting Edge Solutions Bulletproof Si, 1 qt
In Stock: 44
$21.94 $25.99 -16%
Botanicare Pure Blend Pro Soil 1-4-5 - 32oz
In Stock: 449
$21.78 $30.37 -28%
Botanicare Pure Blend Pro Grow Formula 3-2-4 - 32oz
In Stock: 596
$21.78 $30.37 -28%
Vegamatrix Prime Zyme, 5 gal
In Stock: 22
$21.72 $568.99 -96%
Gaia Green Mineralized Phosphate, 20 kg
Out of stock
$21.69 $133.99 -84%
General Hydroponics Liquid KoolBloom 0-10-10 - 32oz
In Stock: 433
$21.65 $30.18 -28%
Wiggle Worm Soil Builder Pure Worm Castings Organic Fertilizer | 30lb - OMRI Listed
In Stock: 3654
$21.48 $30.99 -31%
FoxFarm Cultivation Nation pH Up Nutrient Solution Adjuster | 32oz - Raises the pH in Nutrient Solution
In Stock: 60
$21.37 $24.99 -14%
FoxFarm Cultivation Nation pH Down Nutrient Solution Adjuster | 32oz - Lowers the pH in Nutrient Solution
In Stock: 432
$21.37 $24.99 -14%
HEAVY 16 Finish, 32 oz
In Stock: 2795
$21.25 $31.49 -33%
General Hydroponics ARMOR SI 0-0-4 - 32oz - CA Restriction
In Stock: 99
$21.21 $29.80 -29%
General Hydroponics ARMOR SI 0-0-4 | 32oz
In Stock: 283
$21.21 $29.80 -29%
FoxFarm Happy Frog Soil Conditioner | 3cu ft - West Only | (35/PL)
In Stock: 2452
$21.18 $23.99 -12%
FoxFarm Cultivation Nation Micro Fertilizer 5-0-1 | 32oz - Step 2 for 3-Part Feeding Programs
In Stock: 180
$21.11 $24.99 -16%
FoxFarm Cha-Ching Soluble Fertilizer 9-50-10 | 6oz Jar
In Stock: 252
$21.10 $23.99 -12%
FoxFarm Bush Doctor Liquid Iron Micro-Nutrient 1-0-0 | 16oz - OMRI Listed - (Case of 12)
In Stock: 31
$21.09 $28.49 -26%
Olivia's Cloning Solution | 1gal - (Case of 4)
In Stock: 8
$21.05 $37.95 -45%
Coast of Maine Fish Bone Meal Organic Plant Food 5-13-0, 3 lbs
Out of stock
$21.01
Roots Organics CalMag | 32oz - (Case of 12)
Out of stock
$20.91 $21.99 -5%
Olympus Up, 1 gal
In Stock: 5
$20.90 $46.49 -55%
FoxFarm Open Sesame Soluble Fertilizer 5-45-19 | 6oz Jar
In Stock: 288
$20.86 $24.99 -17%
FoxFarm Bush Doctor Liquid Iron Micro-Nutrient 1-0-0 | 32oz - OMRI Listed - (Case of 12)
In Stock: 47
$20.84 $50.69 -59%
HDI Clonex Rooting Gel | 100mL- Wide Mouth Bottle
In Stock: 1769
$20.70 $24.90 -17%
Dyna-Gro Bloom, 1 qt
In Stock: 108
$20.61 $26.49 -22%
Dyna-Gro Foliage-Pro, 1 qt
In Stock: 1031
$20.61 $26.49 -22%
FoxFarm Beastie Bloomz Fertilizer 0-50-30 | 6oz - (Case of 12)
In Stock: 324
$20.45 $23.99 -15%
Dyna-Gro Grow, 1 qt
In Stock: 169
$20.41 $25.48 -20%
Humboldt Nutrients Master-B, 5 gal
In Stock: 3
$20.32 $300.99 -93%
FoxFarm Big Bloom Fertilizer 0-0.5-0.7 | 32oz - Concentrate - OMRI Listed - (Case of 12)
In Stock: 300
$20.30 $23.99 -15%
SUPERthrive Bloom Plant Nutrients 3-12-6 | 32oz - (Case of 12)
In Stock: 84
$20.29 $29.11 -30%
General Hydroponics FloraNectar FruitnFusion 0-0-1 - 32oz
In Stock: 167
$20.21 $28.33 -29%
Roots Organics Buddha Bloom 1qt
In Stock: 48
$20.20 $24.93 -19%
FoxFarm Marine Cuisine Slow-Release Fertilizer 10-7-7 | 4lb - Bag - (Case of 8)
In Stock: 500
$20.14 $23.99 -16%
Soul Sensei Grow, 5 gal
In Stock: 124
$20.13 $149.06 -86%
Cutting Edge Solutions Mag-Amped, 1 gal
Out of stock
$20.07 $103.99 -81%
Roots Organics Surge | 32oz
In Stock: 29
$19.98 $20.99 -5%
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