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Nutrients & Supplements

Soil Amendments
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128
Rock Fusion Grow Base Nutrient, 1 L
In stock
$22.24 $39.99 -44%
Grotek Vitamax Pro, 1 L
In stock
$22.23 $31.02 -28%
Plant Success King Crab, 4 oz
In stock
$22.16 $27.99 -21%
Gaia Green All Purpose, 2 kg Pouch
In stock
$22.14 $25.29 -12%
Roots Organics Trinity | 32oz
In stock
$22.12 $25.99 -15%
MICROBE Life Hydroponics Vegetable & Fruit Yield Enhancer | 32oz - (Case of 12)
In stock
$21.97 $41.99 -48%
Coast of Maine Kelp Meal Organic Plant Food 1-0-1, 4 lbs
Out of stock
$21.79 $22.99 -5%
Grotek Root Force 1-0-0 | 1L - (Case of 6)
In stock
$21.78 $42.59 -49%
Dyna-Gro Bloom, 1 qt
In stock
$21.68 $26.49 -18%
Dyna-Gro Foliage-Pro, 1 qt
In stock
$21.68 $26.49 -18%
Dyna-Gro Grow, 1 qt
In stock
$21.48 $25.48 -16%
Coast of Maine Squid All Natural Liquid Plant Food 2-3-0, 1 qt
In stock
$21.40 $24.99 -14%
FoxFarm Bush Doctor 1-0-0 Cal-Mag Supplement | 32oz - 3% Calcium - 0.9% Magnesium - OMRI Listed - (Case of 12)
In stock
$21.34 $26.99 -21%
MICROBE Life Hydroponics Photosynthesis Plus | 32oz - (Case of 12)
In stock
$21.28 $40.99 -48%
Xtreme Gardening Mykos WP | 12oz - Wettable Powder - (Case of 12)
In stock
$21.18 $27.07 -22%
Key Grow Solutions Green Dragon 0-0-18 | 1gal - (Case of 4)
In stock
$21.07 $119.99 -82%
Key Grow Solutions Silver Rabbit 7-20-4 | 1gal - (Case of 4)
In stock
$21.07 $119.99 -82%
FOOP Garden Organic Plant Fertilizer | 32oz - Concentrate - OMRI Listed - (Case of 12)
Out of stock
$20.90 $24.99 -16%
Xtreme Gardening Mykos Root Paks | 50ct - (Case of 6)
In stock
$20.81 $26.58 -22%
HYGROZYME Horticultural Horticulture Enzyme Formula | 500mL (16.9oz)
In stock
$20.73 $24.43 -15%
Humboldt Nutrients Verde, 1 qt
In stock
$20.73 $28.99 -28%
Dyna-Gro Pro-TeKt, 1 qt
In stock
$20.72 $25.50 -19%
Cutting Edge Solutions Sugaree, 1 qt
In stock
$20.59 $24.99 -18%
Roots Organics CalMag, 1 qt
In stock
$20.52 $28.90 -29%
Down to Earth Kelp Meal 1-0.1-2 | 4lb - OMRI Listed
In stock
$20.42 $30.99 -34%
HDI Clonex Clone Solution | 32oz
In stock
$20.42 $26.68 -23%
Aptus Massboost, 250 ml
In stock
$20.41 $52.72 -61%
Roots Organics Elemental, 3 lbs
In stock
$20.32 $28.61 -29%
HEAVY 16 Finish, 32 oz
In stock
$20.30 $31.49 -36%
BioAG Ful-Humix | 300g - (Case of 12)
In stock
$20.19 $28.71 -30%
BioAG TM-7 | 300g - (Case of 12)
In stock
$20.19 $28.71 -30%
Gaia Green Greensand, 1.25 kg Pouch
In stock
$20.19 $26.49 -24%
FoxFarm Bush Doctor Manganese Micro-Nutrient 1-0-0 | 16oz - OMRI Listed - (Case of 12)
In stock
$20.15 $28.49 -29%
FoxFarm Bush Doctor Liquid Iron Micro-Nutrient 1-0-0 | 16oz - OMRI Listed - (Case of 12)
In stock
$20.15 $28.49 -29%
HDI Clonex Mist Root Promoter | 300mL - (Case of 6)
In stock
$20.15 $26.32 -23%
Coast of Maine Fish Bone Meal Organic Plant Food 5-13-0, 3 lbs
Out of stock
$20.07 $20.99 -4%
Coast of Maine Lobster Meal Organic Plant Food 6-2-0, 4 lbs
In stock
$20.07 $20.99 -4%
FoxFarm Cultivation Nation pH Up Nutrient Solution Adjuster | 32oz - Raises the pH in Nutrient Solution
In stock
$20.02 $24.99 -20%
FoxFarm Cultivation Nation pH Down Nutrient Solution Adjuster | 32oz - Lowers the pH in Nutrient Solution
In stock
$20.02 $24.99 -20%
FOOP 2-in-1 Clone Gel | 4oz - Rooting Gel + Cloning Gel in One - (Case of 12)
Out of stock
$19.99
FoxFarm Happy Frog Soil Conditioner | 3cu ft - West Only | (35/PL)
In stock
$19.87 $23.99 -17%
General Hydroponics FloraKleen - 1gal
In stock
$19.83 $30.99 -36%
Botanicare Pure Blend Pro Bloom Formula 2-3-5 - 32oz
In stock
$19.83 $30.99 -36%
FoxFarm Cultivation Nation Micro Fertilizer 5-0-1 | 32oz - Step 2 for 3-Part Feeding Programs
In stock
$19.79 $24.99 -21%
FoxFarm Cha-Ching Soluble Fertilizer 9-50-10 | 6oz Jar
In stock
$19.76 $23.99 -18%
Roots Organics Elemental | 3lb - (Case of 3)
Out of stock
$19.63 $23.99 -18%
Wiggle Worm Soil Builder Pure Worm Castings Organic Fertilizer | 30lb - OMRI Listed
In stock
$19.60 $32.59 -40%
FoxFarm Open Sesame Soluble Fertilizer 5-45-19 | 6oz Jar
In stock
$19.54 $24.99 -22%
Remo Nature's Candy, 1 L
In stock
$19.52 $26.99 -28%
Botanicare Pure Blend Pro Soil 1-4-5 - 32oz
In stock
$19.45 $30.37 -36%
Botanicare Pure Blend Pro Grow Formula 3-2-4 - 32oz
In stock
$19.45 $30.37 -36%
House & Garden Multi Zen, 500 ml
In stock
$19.38 $27.29 -29%
Growth Science Organics Abundant-Sea, 1 qt
In stock
$19.35 $39.99 -52%
General Hydroponics Liquid KoolBloom 0-10-10 - 32oz
In stock
$19.34 $30.18 -36%
Roots Organics HPK 0-4-3, 1 qt
In stock
$19.30 $24.93 -23%
Roots Organics Buddha Bloom 1qt
In stock
$19.30 $24.93 -23%
FoxFarm Beastie Bloomz Fertilizer 0-50-30 | 6oz - (Case of 12)
In stock
$19.16 $23.99 -20%
Aptus MINERAL-CALMAG, 1 L
In stock
$19.08 $29.00 -34%
HDI Clonex Rooting Gel | 100mL- Wide Mouth Bottle
In stock
$19.07 $24.90 -23%
Cutting Edge Solutions Bulletproof Si, 1 qt
In stock
$19.07 $25.99 -27%
Cutting Edge Solutions Cal-Mag Amplified, 1 qt
In stock
$19.07 $23.99 -21%
FoxFarm Big Bloom Fertilizer 0-0.5-0.7 | 32oz - Concentrate - OMRI Listed - (Case of 12)
In stock
$19.01 $23.99 -21%
Nutri-Cycle Primer
In stock
$19.00 $29.00 -34%
Nutri-Cycle Booster
In stock
$19.00 $29.00 -34%
Nutri-Cycle Bloomer
In stock
$19.00 $29.00 -34%
Nutri-Cycle Promoter
In stock
$19.00 $29.00 -34%
General Hydroponics ARMOR SI 0-0-4 - 32oz - CA Restriction
In stock
$18.95 $29.80 -36%
General Hydroponics ARMOR SI 0-0-4 | 32oz
In stock
$18.95 $29.80 -36%
FoxFarm Beastie Bloomz, 6 oz
Out of stock
$18.94 $27.06 -30%
FoxFarm Marine Cuisine Dry Fertilizer, 4 lbs
In stock
$18.92 $25.78 -27%
FoxFarm Marine Cuisine Slow-Release Fertilizer 10-7-7 | 4lb - Bag - (Case of 8)
In stock
$18.86 $23.99 -21%
Roots Organics Surge, 1 qt
In stock
$18.86 $26.06 -28%
Roots Organics CalMag | 32oz - (Case of 12)
In stock
$18.80 $21.99 -15%
House & Garden Bud-XL, 250 ml
In stock
$18.63 $26.24 -29%
Biobizz CAL-MAG 1L
In stock
$18.61 $28.86 -36%
Xtreme Azos Beneficial Bacteria, 2 oz
In stock
$18.59 $25.99 -28%
Technaflora B.C. Boost, 1 L
In stock
$18.54 $28.21 -34%
Coast of Maine Stonington Blend Organic Plant Food, 4 lb
In stock
$18.41 $26.99 -32%
Poseidonzime, 1 qt
In stock
$18.40 $25.99 -29%
Optic Foliar ATAK Concentrate, 1 L
In stock
$18.40 $42.99 -57%
Optic Foliar Watts, 250 ml - (Case of 12)
In stock
$18.40 $40.99 -55%
BioAg Ful-Power | 1 qt (ID,IL,IA,KS,MN,NE,OH,OK,OR)
In stock
$18.27 $25.99 -30%
Coop Poop All-Purpose Garden Food by Healthy Grow | 25lb - OMRI Listed
Out of stock
$18.16 $23.49 -23%
Optic Foliar ATAK Concentrate, 4 L
In stock
$18.16 $94.99 -81%
General Hydroponics FloraNectar FruitnFusion 0-0-1 - 32oz
In stock
$18.05 $28.33 -36%
Down To Earth Palm Tree Mix 6-2-8 | 5lb - (Case of 6)
Out of stock
$17.99
Down To Earth Cactus Mix 2-4-8 | 5lb - (Case of 6)
In stock
$17.99
Mad Farmer Be One, 1 qt
In stock
$17.94 $31.49 -43%
FOOP Mist Organic Foliar Spray | 32oz - Ready-to-Use - OMRI Listed - (Case of 12)
Out of stock
$17.91 $24.99 -28%
Optic Foliar Overgrow, 1 L RTU
In stock
$17.84 $24.99 -29%
DaKine 420 Atomic Root Powder | 500g - (Case of 4)
In stock
$17.78 $74.99 -76%
CYCO Platinum Series Dr. Repair 3-0-0 - 1L
In stock
$17.76 $27.36 -35%
Grotek Root Force 1-0-0 | 500mL - (Case of 6)
In stock
$17.71 $31.39 -44%
SUPERthrive Bloom Plant Nutrients 3-12-6 | 32oz - (Case of 12)
In stock
$17.70 $29.11 -39%
SUPERthrive Foliage-Pro Liquid Plant Food 9-3-6 | 32oz - (Case of 12)
In stock
$17.70 $29.11 -39%
SUPERthrive Grow Liquid Plant Food 7-9-5 | 32oz - (Case of 12)
In stock
$17.70 $29.11 -39%
MICROBE Life Hydroponics Vitamins & Amino Acids | 32oz - (Case of 12)
In stock
$17.70 $33.99 -48%
Royal Gold Imperial Boost 0-15-11 | 5lb - (Case of 8)
In stock
$17.70 $25.31 -30%
Grow More Mendocino Avalanche, 1 qt
In stock
$17.70 $27.43 -35%
Neptune's Harvest Fish & Seaweed Fertilizer 2-3-1 | 36oz - Concentrate - OMRI Listed - (Case of 12)
In stock
$17.61 $23.49 -25%
Sustane 4-6-4 Flower & Vegetable Plant Food | 20lb - OMRI Listed
Out of stock
$17.60 $25.76 -32%
BioBizz Fish-Mix 1L
Out of stock
$17.60 $27.28 -35%
BioBizz Fish-Mix 1L CA & OR only
In stock
$17.60 $27.28 -35%
Mother Earth LiquiCraft Grow 4-3-3 - 32oz
In stock
$17.58 $27.53 -36%
Mother Earth LiquiCraft Bloom 2-4-4 - 32oz
In stock
$17.58 $27.53 -36%
Demeter's Destiny, 1 qt
In stock
$17.56 $22.99 -24%
Hades Down, 1 qt
In stock
$17.56 $22.99 -24%
Zeus Juice, 1 qt
In stock
$17.56 $22.99 -24%
Roots Organics HP2 0-4-0, 1 qt
In stock
$17.56 $22.67 -23%
Happy Frog Soil Conditioner 1.5 cu ft
In stock
$17.44 $25.57 -32%
FoxFarm Bush Doctor Cal-Mag, 1 qt
In stock
$17.43 $27.56 -37%
Roots Organics Surge | 32oz
In stock
$17.42 $20.99 -17%
SUPERthrive Mag-Pro Nutritional Supplement 2-15-4 | 32oz - (Case of 12)
In stock
$17.36 $28.09 -38%
Royal Gold Crown Jewels Bloom 1-4-2 | 5lb - (Case of 8)
In stock
$17.36 $24.84 -30%
Royal Gold Crown Jewels Grow 3-2-2 | 5lb - (Case of 8)
In stock
$17.36 $24.84 -30%
Plant Success Organics Soluble 0.5-0.1-7 | 4oz
In stock
$17.35 $23.25 -25%
Maxicrop Soluble Seaweed Powder 0-0-17 | 10.7oz - OMRI Listed - (Case of 12)
In stock
$17.32 $24.99 -31%
Nectar for The Gods Aphrodite's Extraction Carbon 0-1-0 | 32oz
In stock
$17.32 $23.99 -28%
Nectar for The Gods Poseidonzime Foliar Spray 0-0-0.5 | 32oz
In stock
$17.32 $23.99 -28%
FoxFarm Open Sesame, 6 oz
In stock
$17.23 $27.02 -36%
BioAG Ful-Power Purified Fulvic Acid | 32oz - OMRI Listed - (Case of 12)
In stock
$17.17 $24.42 -30%
FoxFarm Bush Doctor Microbe Brew Microbial Inoculant 1-0.3-0.2 | 16oz - Concentrate
In stock
$17.16 $20.99 -18%
Grotek Monster Grow Pro 18-36-1 | 500g - (Case of 6)
In stock
$17.16 $52.99 -68%
Xtreme Mykos Pure Mycorrhizal Inoculum, Granular, 1 lb
In stock
$17.14 $25.99 -34%
True Organic Tomato & Vegetable Food 4-5-6 | 12lb - Resealable Bag - Covers up to 210sq ft - Use Monthly - OMRI Listed
In stock
$17.13 $23.99 -29%
Grotek Biofuse | 300g - (Case of 6)
In stock
$17.11 $30.29 -44%
Down to Earth Oyster Shell | 25lb - OMRI Listed
Out of stock
$17.03 $25.99 -34%
SUPERthrive Root-Gel Rooting Gel | 4oz - (Case of 12)
In stock
$17.03 $27.99 -39%
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