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Nutrients & Supplements

Soil Amendments
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128
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Green Gro Ultrafine Mycorrhizae All-in-One, 4 oz
In stock
$17.31 $20.99 -18%
FoxFarm Marine Cuisine Slow-Release Fertilizer 10-7-7 | 4lb - Bag - (Case of 8)
In stock
$17.29 $23.99 -28%
Optic Foliar Overgrow, 1 L RTU
In stock
$17.29 $24.99 -31%
FoxFarm Cultivation Nation pH Up Nutrient Solution Adjuster | 32oz - Raises the pH in Nutrient Solution
In stock
$17.24 $24.99 -31%
FoxFarm Cultivation Nation pH Down Nutrient Solution Adjuster | 32oz - Lowers the pH in Nutrient Solution
In stock
$17.24 $24.99 -31%
DaKine 420 Atomic Root Powder | 500g - (Case of 4)
In stock
$17.22 $74.99 -77%
CYCO Platinum Series Dr. Repair 3-0-0 - 1L
In stock
$17.21 $27.36 -37%
FoxFarm Cultivation Nation Micro, 1 qt
Out of stock
$17.18 $23.98 -28%
MICROBE Life Hydroponics Vitamins & Amino Acids | 32oz - (Case of 12)
In stock
$17.15 $33.99 -50%
Xtreme Azos Beneficial Bacteria, 2 oz
In stock
$17.15 $24.99 -31%
Save 10%
Gaia Green Mineralized Phosphate, 2 kg Pouch
In stock
$17.11 $18.99 -10%
Royal Gold Imperial Boost 0-15-11 | 5lb - (Case of 8)
In stock
$17.08 $24.99 -32%
Sustane 4-6-4 Flower & Vegetable Plant Food | 20lb - OMRI Listed
In stock
$17.05 $25.76 -34%
Demeter's Destiny, 1 qt
In stock
$17.01 $22.99 -26%
Hades Down, 1 qt
In stock
$17.01 $22.99 -26%
Zeus Juice, 1 qt
In stock
$17.01 $22.99 -26%
Roots Organics HP2 0-4-0, 1 qt
In stock
$17.01 $22.67 -25%
Big Foot Mycorrhizae Concentrate | 4oz - Water-in-Root Inoculum
In stock
$17.00
Neptune's Harvest Fish & Seaweed Fertilizer 2-3-1 | 36oz - Concentrate - OMRI Listed - (Case of 12)
In stock
$16.98 $23.29 -27%
Roots Organics Surge | 32oz
In stock
$16.88 $20.99 -20%
Royal Gold Crown Jewels Bloom 1-4-2 | 5lb - (Case of 8)
In stock
$16.86 $24.99 -33%
Remo Micro, 1 L
In stock
$16.85 $22.99 -27%
Remo Magnifical, 1 L
In stock
$16.85 $22.99 -27%
SUPERthrive Bloom Plant Nutrients 3-12-6 | 32oz - (Case of 12)
Out of stock
$16.82 $28.55 -41%
SUPERthrive Foliage-Pro Liquid Plant Food 9-3-6 | 32oz - (Case of 12)
In stock
$16.82 $28.55 -41%
SUPERthrive Grow Liquid Plant Food 7-9-5 | 32oz - (Case of 12)
In stock
$16.82 $28.55 -41%
Maxicrop Soluble Seaweed Powder 0-0-17 | 10.7oz - OMRI Listed - (Case of 12)
In stock
$16.79 $24.99 -33%
Nectar for The Gods Aphrodite's Extraction Carbon 0-1-0 | 32oz
In stock
$16.79 $23.99 -30%
Nectar for The Gods Poseidonzime Foliar Spray 0-0-0.5 | 32oz
In stock
$16.79 $23.99 -30%
Botanicare Sweet Berry Plant Food | 32oz
In stock
$16.65 $39.03 -57%
BioAG Ful-Power Purified Fulvic Acid | 32oz - OMRI Listed - (Case of 12)
Out of stock
$16.64 $24.42 -32%
MICROBE Life Hydroponics Foliar Spray & Root Dip | 32oz - (Case of 12)
In stock
$16.64 $41.99 -60%
Grotek Monster Grow Pro 18-36-1 | 500g - (Case of 6)
In stock
$16.62 $52.99 -69%
True Organic Tomato & Vegetable Food 4-5-6 | 12lb - Resealable Bag - Covers up to 210sq ft - Use Monthly - OMRI Listed
In stock
$16.60 $23.99 -31%
Rhizoflora Terpinator 0-0-4 - 32oz
In stock
$16.56 $22.27 -26%
FoxFarm Cultivation Nation Micro Fertilizer 5-0-1 | 32oz - Step 2 for 3-Part Feeding Programs
In stock
$16.54 $24.99 -34%
Down to Earth Oyster Shell | 25lb - OMRI Listed
Out of stock
$16.50 $25.99 -37%
SUPERthrive Mag-Pro Nutritional Supplement 2-15-4 | 32oz - (Case of 12)
In stock
$16.50 $27.54 -40%
Down to Earth Seabird Guano 0-11-0 | 5lb - OMRI Listed - (Case of 6)
In stock
$16.48 $29.79 -45%
FoxFarm Bush Doctor Microbe Brew, 1 pt
In stock
$16.42 $21.91 -25%
Botanicare Liquid Karma 0.1-0.1-0.5 - 32oz
In stock
$16.32 $38.26 -57%
SUPERthrive Pro-TeKt Nutritional Supplement 0-0-3 | 32oz - The Silicon Solution - (Case of 12)
In stock
$16.14 $27.49 -41%
Remo Bloom, 1 L
In stock
$16.12 $20.99 -23%
Remo Grow, 1 L
In stock
$16.12 $20.99 -23%
Plant Success Organics Soluble 0.5-0.1-7 | 4oz
In stock
$16.04 $22.15 -28%
Rock Fusion Bloom Base Nutrient, 1 L
In stock
$16.02 $39.99 -60%
Big Foot Root Boost Nitrogen-Fixing Azospirillum | 5oz
In stock
$15.99
Technaflora B.C. Bloom, 1 L
In stock
$15.96 $23.99 -33%
Technaflora B.C. Grow, 1 L
In stock
$15.96 $23.99 -33%
General Hydroponics Diamond Nectar 0-1-1 - 32oz
In stock
$15.95 $25.82 -38%
HDI MotherPlant Nutrients Part B | 1gal - (Case of 4)
In stock
$15.94 $49.07 -68%
Down to Earth Neem Seed Meal 6-1-2 | 5lb - OMRI Listed - (Case of 6)
In stock
$15.88 $25.49 -38%
Biobizz CAL-MAG 1L
In stock
$15.86 $28.86 -45%
DaKine 420 Shock & Awe Bloom Booster | 1,000g - (Case of 4)
In stock
$15.85 $68.99 -77%
Roots Organics Ancient Amber | 32oz
In stock
$15.82 $19.99 -21%
Roots Organics Buddha Bloom | 32oz
In stock
$15.82 $19.99 -21%
Roots Organics Buddha Grow | 32oz
In stock
$15.82 $19.99 -21%
Roots Organics HPK | 32oz
In stock
$15.82 $19.99 -21%
HDI Ionic Bloom Plant Nutrient 3-2-6 | 32oz
In stock
$15.82 $21.34 -26%
HDI Ionic PK BOOST Plant Nutrient 0-5-6 | 32oz
In stock
$15.82 $21.34 -26%
HDI Ionic Grow Plant Nutrient 3-1-5 | 32oz
In stock
$15.82 $21.34 -26%
HDI Ionic Grow for Soil Plant Nutrient 3-1-4 | 32oz
In stock
$15.82 $21.34 -26%
Save 7%
Cutting Edge Solutions Micro, 1 qt
In stock
$15.81 $16.99 -7%
Emerald Harvest Cal-Mag, 1 qt
In stock
$15.81 $23.00 -31%
FoxFarm Open Sesame, 1 lb
In stock
$15.72 $57.10 -72%
FoxFarm Bush Doctor Bemb Sweet & Dandy 0-1-3 | 16oz - Concentrate
In stock
$15.66 $22.99 -32%
General Hydroponics CALiMAGic 1-0-0 - 32oz
In stock
$15.55 $25.14 -38%
Elite Root Igniter E, 8 oz - A Hydrofarm Exclusive!
In stock
$15.46 $32.99 -53%
Xtreme Gardening Azos Root Booster | 2oz - (Case of 12)
In stock
$15.44 $20.34 -24%
Xtreme Gardening Mykos | 1lb - (Case of 12)
In stock
$15.44 $20.34 -24%
MICROBE Life Hydroponics Photosynthesis Plus | 16oz - (Case of 12)
In stock
$15.41 $30.99 -50%
Roots Organics Terp Tea Bloom, 3 lb
In stock
$15.39 $20.51 -25%
Roots Organics Terp Tea Grow, 3 lb
In stock
$15.39 $20.51 -25%
Emerald Harvest pH Up | 32oz
In stock
$15.31 $25.50 -40%
Emerald Harvest pH Down | 32oz
In stock
$15.31 $25.50 -40%
Down to Earth Kelp Meal 1-0.1-2 | 5lb - OMRI Listed
In stock
$15.30 $37.49 -59%
Plant Success Organics Granular, 1 lb
In stock
$15.30 $19.95 -23%
Down to Earth Solution Grade Calcium 96 | 5lb - OMRI Listed - (Case of 5)
In stock
$15.29
Save 10%
Age Old Grow, 32 oz
In stock
$15.29 $16.99 -10%
Save 10%
Age Old Bloom, 32 oz
In stock
$15.29 $16.99 -10%
Nectar for The Gods Demeter's Destiny Liquid Calcium 0-0.5-0 | 32oz
In stock
$15.26 $21.99 -31%
Nectar for The Gods Hades Down 0-1-0 | 32oz
In stock
$15.26 $21.99 -31%
Nectar for The Gods Zeus Juice Growth Enhancer | 32oz
In stock
$15.26 $21.99 -31%
FoxFarm Bush Doctor Liquid Iron Micro-Nutrient 1-0-0 | 16oz - OMRI Listed - (Case of 12)
In stock
$15.24 $28.49 -47%
Nectar for The Gods One Shot 3-10-0 | 4lb - (Case of 10)
Out of stock
$15.24 $24.99 -39%
Grotek Blossom Blaster Pro Liquid, 1 L
In stock
$15.20 $29.18 -48%
Neptune's Harvest Seaweed Plant Food 0-0-1 | 32oz - Concentrate - Makes 32gal - OMRI Listed - (Case of 12)
In stock
$15.16 $20.99 -28%
Mad Farmer Mother Of All Bloom, 250g
In stock
$15.11 $32.12 -53%
General Organics CaMg+ Calcium Magnesium Supplement - 32oz
In stock
$15.05 $24.49 -39%
BioBizz Fish-Mix 1L
In stock
$15.00 $27.28 -45%
BioBizz Fish-Mix 1L CA & OR only
In stock
$15.00 $27.28 -45%
FoxFarm Bush Doctor Wholly Mackerel Fertilizer 3-1-0 | 16oz - Concentrate
In stock
$14.99 $21.99 -32%
Grotek Blossom Blaster 1-4-0 | 15/box - 20g
In stock
$14.99
Miracle-Gro Performance Organics Edibles | 2.5lb Jug - OMRI Listed - (Case of 6)
In stock
$14.90 $23.19 -36%
Xtreme Gardening Calcar Foliar Booster | 3oz - (Case of 12)
In stock
$14.90 $19.64 -24%
Botanicare Cal-Mag Plus 2-0-0 | 32oz
In stock
$14.89 $24.13 -38%
FoxFarm Grow Big Hydroponic Fertilizer 3-2-6 | 16oz - Concentrate
Out of stock
$14.88 $21.99 -32%
Mad Farmer Cal+Mag, 1 qt
In stock
$14.86 $21.62 -31%
HDI Ionic PK BOOST Plant Nutrient 0-5-6 | 1gal - (Case of 4)
In stock
$14.85 $46.24 -68%
HDI Ionic Bloom for Soil Premium Plant Nutrient 2-2-5 | 1gal - (Case of 4)
In stock
$14.85 $46.24 -68%
HDI Ionic Grow for Soil Plant Nutrient 3-1-4 | 1gal - (Case of 4)
In stock
$14.85 $46.24 -68%
Soul Sensei Micro, 1 qt
In stock
$14.84 $19.79 -25%
Bushdoctor Kangaroots 1 pt
Out of stock
$14.84 $20.24 -27%
FoxFarm Grow Big Hydro Liquid Concentate, 1 pt
In stock
$14.72 $19.66 -25%
Olivia's Cloning Gel | 4oz - (Case of 24)
In stock
$14.62 $22.95 -36%
Gaia Mania, 1 qt
In stock
$14.58 $19.49 -25%
Roots Organics Uprising Bloom, 3 lbs
In stock
$14.58 $19.43 -25%
Roots Organics Uprising Foundation, 3 lbs
In stock
$14.58 $19.43 -25%
Roots Organics Uprising Grow, 3 lbs
In stock
$14.58 $19.43 -25%
Coast of Maine Quoddy Blend Organic Lobster Compost | 1cu ft - OMRI Listed - (Case of 5)
In stock
$14.57 $23.99 -39%
Down to Earth Solution Grade Langbeinite 0-0-22 | 5lb - OMRI Listed - (Case of 5)
In stock
$14.54 $24.49 -41%
Down to Earth Solution Grade Potassium Sulfate 0-0-50 | 5lb - OMRI Listed - (Case of 5)
In stock
$14.54 $24.49 -41%
FoxFarm Bush Doctor Microbe Brew Microbial Inoculant 1-0.3-0.2 | 16oz - Concentrate
In stock
$14.49 $20.99 -31%
Bushdoctor Sledgehammer 1 pt
Out of stock
$14.49 $20.15 -28%
FoxFarm Bush Doctor Liquid Iron Micro-Nutrient 1-0-0 | 32oz - OMRI Listed - (Case of 12)
In stock
$14.48 $50.69 -71%
Plant Success Organics Granular 3-1-2 | 1lb - Granules - (Case of 12)
In stock
$14.42 $19.95 -28%
Save 10%
Cutting Edge Solutions Grow, 1 qt
In stock
$14.41 $15.99 -10%
Save 10%
Gaia Green Worm Castings, 2 L U.S. (NA02) Pouch
In stock
$14.40 $15.99 -10%
Emerald Harvest Cal-Mag | 32oz
In stock
$14.38 $23.00 -37%
Bushdoctor Bembe Pt
Out of stock
$14.38 $19.60 -27%
Neptune's Harvest Fish Fertilizer 2-4-1 | 36oz - Concentrate - OMRI Listed - (Case of 12)
In stock
$14.36 $22.39 -36%
Roots Organics HP2 | 32oz
In stock
$14.28 $17.99 -21%
Botanicare Silica Blast 0-0-0.5 - 32oz
In stock
$14.22 $23.13 -39%
FoxFarm Happy Frog Cavern Culture Fertilizer 1-12-0 | 4lb - OMRI Listed - (Case of 12)
In stock
$14.21 $19.99 -29%
FoxFarm Grow Big Fertilizer 6-4-4 | 16oz - Concentrate
In stock
$14.21 $18.99 -25%
Biobizz Bio-Bloom | 1 L
In stock
$14.19 $25.80 -45%
Biobizz Bio-Grow | 1 L
In stock
$14.19 $25.80 -45%
BioBizz Bio-Grow 1L CA & OR only
In stock
$14.19 $25.80 -45%
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