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Nutrients & Supplements

Soil Amendments
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128
General Hydroponics ARMOR SI 0-0-4 - 32oz - CA Restriction
In Stock: 63
$20.74 $29.80 -30%
General Hydroponics ARMOR SI 0-0-4 | 32oz
In Stock: 305
$20.74 $29.80 -30%
FoxFarm Bush Doctor Liquid Iron Micro-Nutrient 1-0-0 | 16oz - OMRI Listed - (Case of 12)
In Stock: 43
$20.62 $28.49 -28%
Coast of Maine Kelp Meal Organic Plant Food 1-0-1, 4 lbs
Out of stock
$20.59 $22.99 -10%
Olivia's Cloning Solution | 1gal - (Case of 4)
In Stock: 16
$20.58 $37.95 -46%
Coast of Maine Lobster Meal Organic Plant Food 6-2-0, 4 lbs
In Stock: 8
$20.54 $20.99 -2%
FoxFarm Cultivation Nation pH Up Nutrient Solution Adjuster | 32oz - Raises the pH in Nutrient Solution
In Stock: 60
$20.49 $24.99 -18%
FoxFarm Cultivation Nation pH Down Nutrient Solution Adjuster | 32oz - Lowers the pH in Nutrient Solution
In Stock: 72
$20.49 $24.99 -18%
Roots Organics Elemental | 3lb - (Case of 3)
Out of stock
$20.46 $23.99 -15%
Coast of Maine Stonington Blend Organic Plant Food, 4 lb
Out of stock
$20.41 $26.99 -24%
FoxFarm Bush Doctor Liquid Iron Micro-Nutrient 1-0-0 | 32oz - OMRI Listed - (Case of 12)
In Stock: 47
$20.38 $50.69 -60%
FoxFarm Happy Frog Soil Conditioner | 3cu ft - West Only | (35/PL)
In Stock: 2273
$20.33 $23.99 -15%
FoxFarm Cultivation Nation Micro Fertilizer 5-0-1 | 32oz - Step 2 for 3-Part Feeding Programs
In Stock: 48
$20.25 $24.99 -19%
FoxFarm Cha-Ching Soluble Fertilizer 9-50-10 | 6oz Jar
Out of stock
$20.22 $23.99 -16%
Dyna-Gro Bloom, 1 qt
In Stock: 6
$20.16 $26.49 -24%
Wiggle Worm Soil Builder Pure Worm Castings Organic Fertilizer | 30lb - OMRI Listed
In Stock: 2145
$20.05 $32.59 -38%
FoxFarm Open Sesame Soluble Fertilizer 5-45-19 | 6oz Jar
Out of stock
$20.00 $24.99 -20%
Rock Fusion Grow Base Nutrient, 1 L
In Stock: 11
$19.97 $39.99 -50%
Dyna-Gro Grow, 1 qt
In Stock: 83
$19.96 $25.48 -22%
HDI Clonex Rooting Gel | 100mL- Wide Mouth Bottle
In Stock: 1793
$19.87 $24.90 -20%
General Hydroponics FloraNectar FruitnFusion 0-0-1 - 32oz
In Stock: 92
$19.76 $28.33 -30%
Roots Organics Ancient Amber, 1 qt
In Stock: 348
$19.75 $24.93 -21%
Roots Organics HPK 0-4-3, 1 qt
In Stock: 525
$19.75 $24.93 -21%
Roots Organics Buddha Bloom 1qt
In Stock: 95
$19.75 $24.93 -21%
Roots Organics Buddha Grow 1qt
In Stock: 201
$19.75 $24.93 -21%
Soul Sensei Bloom, 5 gal
Out of stock
$19.68 $149.06 -87%
Soul Sensei Grow, 5 gal
In Stock: 124
$19.68 $149.06 -87%
FoxFarm Beastie Bloomz Fertilizer 0-50-30 | 6oz - (Case of 12)
Out of stock
$19.60 $23.99 -18%
Roots Organics CalMag | 32oz - (Case of 12)
Out of stock
$19.58 $21.99 -11%
Aptus MINERAL-CALMAG, 1 L
In Stock: 129
$19.52 $29.00 -33%
Cutting Edge Solutions Bulletproof Si, 1 qt
In Stock: 16
$19.51 $25.99 -25%
Cutting Edge Solutions Cal-Mag Amplified, 1 qt
In Stock: 901
$19.51 $23.99 -19%
FoxFarm Big Bloom Fertilizer 0-0.5-0.7 | 32oz - Concentrate - OMRI Listed - (Case of 12)
In Stock: 60
$19.46 $23.99 -19%
CYCO Platinum Series Dr. Repair 3-0-0 - 1L
In Stock: 298
$19.44 $27.36 -29%
FoxFarm Marine Cuisine Slow-Release Fertilizer 10-7-7 | 4lb - Bag - (Case of 8)
In Stock: 572
$19.30 $23.99 -20%
Nutri-Cycle Primer
In Stock: 10
$19.00 $29.00 -34%
Nutri-Cycle Booster
In Stock: 10
$19.00 $29.00 -34%
Nutri-Cycle Bloomer
In Stock: 10
$19.00 $29.00 -34%
Nutri-Cycle Promoter
In Stock: 10
$19.00 $29.00 -34%
Coast of Maine Fish Bone Meal Organic Plant Food 5-13-0, 3 lbs
Out of stock
$18.96 $20.99 -10%
Roots Organics Elemental, 3 lbs
In Stock: 95
$18.89 $28.61 -34%
Gaia Green All Purpose, 2 kg Pouch
In Stock: 1344
$18.86 $25.29 -25%
Aptus Massboost, 250 ml
In Stock: 2
$18.80 $52.72 -64%
Down to Earth Seabird Guano 0-11-0 | 5lb - OMRI Listed - (Case of 6)
In Stock: 1443
$18.78 $29.99 -37%
FoxFarm Cultivation Nation pH DOWN, 1 pint, case of 12
In Stock: 445
$18.77 $144.40 -87%
Grotek Root Force 1-0-0 | 1L - (Case of 6)
In Stock: 60
$18.76
Rhizoflora Terpinator 0-0-4 - 32oz
Out of stock
$18.72 $22.27 -16%
FOOP Mist Organic Foliar Spray | 32oz - Ready-to-Use - OMRI Listed - (Case of 12)
Out of stock
$18.66 $24.99 -25%
MICROBE Life Hydroponics Vitamins & Amino Acids | 32oz - (Case of 12)
In Stock: 36
$18.61 $34.99 -47%
Coop Poop All-Purpose Garden Food by Healthy Grow | 25lb - OMRI Listed
In Stock: 88
$18.59 $23.49 -21%
SUPERthrive Bloom Plant Nutrients 3-12-6 | 32oz - (Case of 12)
In Stock: 84
$18.44 $29.11 -37%
SUPERthrive Foliage-Pro Liquid Plant Food 9-3-6 | 32oz - (Case of 12)
In Stock: 732
$18.44 $29.11 -37%
SUPERthrive Grow Liquid Plant Food 7-9-5 | 32oz - (Case of 12)
In Stock: 140
$18.44 $29.11 -37%
Royal Gold Imperial Boost 0-15-11 | 5lb - (Case of 8)
In Stock: 31
$18.20 $25.31 -28%
DaKine 420 Atomic Root Powder | 500g - (Case of 4)
In Stock: 16
$18.19 $74.99 -76%
Roots Organics Surge | 32oz
In Stock: 29
$18.15 $20.99 -14%
SUPERthrive Mag-Pro Nutritional Supplement 2-15-4 | 32oz - (Case of 12)
In Stock: 47
$18.10 $28.09 -36%
Royal Gold Crown Jewels Bloom 1-4-2 | 5lb - (Case of 8)
In Stock: 56
$18.10 $24.84 -27%
Royal Gold Crown Jewels Grow 3-2-2 | 5lb - (Case of 8)
In Stock: 49
$18.10 $24.84 -27%
Plant Success Organics Soluble 0.5-0.1-7 | 4oz
In Stock: 36
$18.08 $23.25 -22%
Gaia Green Mineralized Phosphate, 2 kg Pouch
In Stock: 20
$18.07 $18.99 -5%
Maxicrop Soluble Seaweed Powder 0-0-17 | 10.7oz - OMRI Listed - (Case of 12)
In Stock: 408
$18.06 $24.99 -28%
Nectar for The Gods Aphrodite's Extraction Carbon 0-1-0 | 32oz
In Stock: 39
$18.06 $23.99 -25%
Nectar for The Gods Poseidonzime Foliar Spray 0-0-0.5 | 32oz
In Stock: 6
$18.06 $23.99 -25%
General Hydroponics Diamond Nectar 0-1-1 - 32oz
In Stock: 302
$18.02 $25.82 -30%
Neptune's Harvest Fish & Seaweed Fertilizer 2-3-1 | 36oz - Concentrate - OMRI Listed - (Case of 12)
In Stock: 827
$18.02 $23.49 -23%
Sustane 4-6-4 Flower & Vegetable Plant Food | 20lb - OMRI Listed
In Stock: 30
$18.00 $25.76 -30%
BioBizz Fish-Mix 1L
Out of stock
$18.00 $27.28 -34%
BioBizz Fish-Mix 1L CA & OR only
In Stock: 17
$18.00 $27.28 -34%
Mother Earth LiquiCraft Grow 4-3-3 - 32oz
In Stock: 94
$17.99 $27.53 -35%
Mother Earth LiquiCraft Bloom 2-4-4 - 32oz
In Stock: 61
$17.99 $27.53 -35%
Down To Earth Palm Tree Mix 6-2-8 | 5lb - (Case of 6)
In Stock: 566
$17.99
Down To Earth Cactus Mix 2-4-8 | 5lb - (Case of 6)
In Stock: 416
$17.99
BioAG Ful-Power Purified Fulvic Acid | 32oz - OMRI Listed - (Case of 12)
In Stock: 58
$17.89 $24.42 -27%
FoxFarm Bush Doctor Kangaroots, 1 qt
In Stock: 72
$17.83 $36.12 -51%
SUPERthrive Root-Gel Rooting Gel | 4oz - (Case of 12)
In Stock: 24
$17.75 $27.99 -37%
SUPERthrive Pro-TeKt Nutritional Supplement 0-0-3 | 32oz - The Silicon Solution - (Case of 12)
In Stock: 1140
$17.71 $28.05 -37%
FoxFarm Grow Big Hydro Liquid Concentate, 1 qt
Out of stock
$17.64 $36.10 -51%
CYCO Commercial Series Grow 10-5-13 - 750g
In Stock: 27
$17.61 $66.11 -73%
General Hydroponics CALiMAGic 1-0-0 - 32oz
In Stock: 920
$17.57 $25.14 -30%
FoxFarm Bush Doctor Microbe Brew Microbial Inoculant 1-0.3-0.2 | 16oz - Concentrate
In Stock: 235
$17.56 $20.99 -16%
Grotek Monster Grow Pro 18-36-1 | 500g - (Case of 6)
In Stock: 84
$17.56 $52.99 -67%
Roots Organics Surge, 1 qt
In Stock: 631
$17.54 $26.06 -33%
Xtreme Mykos Pure Mycorrhizal Inoculum, Granular, 1 lb
In Stock: 3215
$17.54 $25.99 -33%
True Organic Tomato & Vegetable Food 4-5-6 | 12lb - Resealable Bag - Covers up to 210sq ft - Use Monthly - OMRI Listed
In Stock: 61
$17.53 $23.99 -27%
House & Garden Bud-XL, 250 ml
In Stock: 73
$17.33 $26.24 -34%
Xtreme Azos Beneficial Bacteria, 2 oz
In Stock: 191
$17.28 $25.99 -34%
Xtreme Gardening Azos Root Booster | 2oz - (Case of 12)
In Stock: 72
$17.27 $21.16 -18%
Xtreme Gardening Mykos | 1lb - (Case of 12)
In Stock: 38
$17.27 $21.16 -18%
Emerald Harvest pH Up | 32oz
In Stock: 87
$17.23 $25.50 -32%
Emerald Harvest pH Down | 32oz
In Stock: 51
$17.23 $25.50 -32%
Armory Beneficial Bacteria Blend | 2oz - OMRI Listed
In Stock: 1
$17.08 $30.03 -43%
Roots Organics Ancient Amber | 32oz
In Stock: 28
$17.03 $19.99 -15%
Roots Organics Buddha Bloom | 32oz
Out of stock
$17.03 $19.99 -15%
Roots Organics Buddha Grow | 32oz
Out of stock
$17.03 $19.99 -15%
Roots Organics HPK | 32oz
In Stock: 28
$17.03 $19.99 -15%
HDI Ionic Bloom Plant Nutrient 3-2-6 | 32oz
In Stock: 20
$17.03 $21.34 -20%
HDI Ionic PK BOOST Plant Nutrient 0-5-6 | 32oz
In Stock: 19
$17.03 $21.34 -20%
HDI Ionic Grow Plant Nutrient 3-1-5 | 32oz
In Stock: 39
$17.03 $21.34 -20%
HDI Ionic Grow for Soil Plant Nutrient 3-1-4 | 32oz
In Stock: 24
$17.03 $21.34 -20%
Biobizz Bio-Bloom | 1 L
In Stock: 229
$17.03 $25.80 -34%
Biobizz Bio-Grow | 1 L
In Stock: 257
$17.03 $25.80 -34%
BioBizz Bio-Grow 1L CA & OR only
In Stock: 45
$17.03 $25.80 -34%
BioBizz Bio-Bloom 1L CA & OR only
In Stock: 16
$17.03 $25.80 -34%
General Organics CaMg+ Calcium Magnesium Supplement - 32oz
In Stock: 313
$17.01 $24.49 -31%
Big Foot Mycorrhizae Concentrate | 4oz - Water-in-Root Inoculum
In Stock: 83
$17.00
BioAg Ful-Power | 1 qt
In Stock: 68
$16.99 $25.99 -35%
BioAg Ful-Power | 1 qt (ID,IL,IA,KS,MN,NE,OH,OK,OR)
In Stock: 57
$16.99 $25.99 -35%
House & Garden Drip Clean, 250 ml
In Stock: 38
$16.96 $25.70 -34%
Plant Success Organics Granular, 1 lb
In Stock: 61
$16.95 $20.99 -19%
MICROBE Life Hydroponics Photosynthesis Plus | 16oz - (Case of 12)
In Stock: 132
$16.91 $32.99 -49%
Technaflora B.C. Bloom, 1 L
In Stock: 84
$16.86 $23.99 -30%
Xtreme Gardening Calcar Foliar Booster | 3oz - (Case of 12)
In Stock: 36
$16.84 $20.64 -18%
HDI MotherPlant Nutrients Part B | 1gal - (Case of 4)
In Stock: 24
$16.83 $49.07 -66%
Botanicare Cal-Mag Plus 2-0-0 | 32oz
In Stock: 1774
$16.82 $24.13 -30%
FoxFarm Bush Doctor Kangaroots Root Drench Inoculant 0.8-0.1-0.03 | 16oz - Concentrate
In Stock: 322
$16.80 $19.99 -16%
MICROBE Life Hydroponics Nourish-L Liquid Fertilizer | 16oz - (Case of 12)
Out of stock
$16.76 $31.99 -48%
DaKine 420 Shock & Awe Bloom Booster | 1,000g - (Case of 4)
In Stock: 8
$16.74 $68.99 -76%
House & Garden Hydro A, 20 L
In Stock: 1
$16.74 $123.99 -86%
Cutting Edge Solutions Micro, 1 qt
In Stock: 29
$16.70 $16.99 -2%
Green Gro Ultrafine Mycorrhizae All-in-One, 4 oz
Out of stock
$16.62 $20.99 -21%
Rock Fusion Bloom Base Nutrient, 1 L
In Stock: 84
$16.55 $39.99 -59%
General Organics BioThrive Bloom 2-4-4 | 32oz
In Stock: 235
$16.54 $23.63 -30%
Nectar for The Gods Demeter's Destiny Liquid Calcium 0-0.5-0 | 32oz
In Stock: 32
$16.42 $21.99 -25%
Nectar for The Gods Hades Down 0-1-0 | 32oz
In Stock: 73
$16.42 $21.99 -25%
Nectar for The Gods Zeus Juice Growth Enhancer | 32oz
In Stock: 23
$16.42 $21.99 -25%
FoxFarm Bush Doctor Sledgehammer | 16oz -OMRI Listed
In Stock: 199
$16.41 $19.99 -18%
Grotek Root Force 1-0-0 | 500mL - (Case of 6)
In Stock: 30
$16.39
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