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Nutrients & Supplements

Soil Amendments
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128
Mad Farmer Nutrient UpTake Solution (N.U.T.S.), 1 gal
In Stock: 33
$7.29 $53.55 -86%
DaKine 420 Nitro Nutrients Base | 500g - (Case of 4)
In Stock: 7
$7.25 $28.99 -75%
DaKine 420 Nitro Nutrients Bloom | 500g - (Case of 4)
In Stock: 12
$7.25 $28.99 -75%
DaKine 420 Bio Minerals | 500g - (Case of 4)
In Stock: 16
$7.25 $28.99 -75%
DaKine 420 CalMag | 500g - (Case of 4)
In Stock: 4
$7.25 $28.99 -75%
DaKine 420 Sticky Icky Enzymes | 100g - (Case of 20)
In Stock: 20
$7.25 $28.99 -75%
DaKine 420 Nitro Nutrients Grow | 500g - (Case of 4)
In Stock: 8
$7.25 $28.99 -75%
Humboldt Nutrients Mayan Microzyme, 1 qt
In Stock: 6
$7.21 $105.99 -93%
Plant Success Organics Granular 3-1-2 | 4oz - Granules - (Case of 12)
In Stock: 741
$7.19 $8.65 -17%
HDI Ionic Bloom for Soil Premium Plant Nutrient 2-2-5 | 32oz
In Stock: 371
$7.18 $21.34 -66%
Grotek Heavy Bud Pro 1-0-3 | 500mL - (Case of 6)
In Stock: 12
$7.13 $20.99 -66%
Wiggle Worm Soil Builder Pure Worm Castings Organic Fertilizer | 4.5lb - OMRI Listed - (Case of 12)
In Stock: 1804
$7.06 $11.29 -37%
Wiggle Worm Soil Builder Pure Worm Castings Organic Fertilizer | 4.5lb - OMRI Listed - (Case of 10)
Out of stock
$7.06 $11.29 -37%
Olivia's Cloning Solution | 32oz (1qt) - (Case of 24)
In Stock: 24
$7.03 $13.95 -50%
Down to Earth Calcium 96 | 1lb - OMRI Listed - (Case of 6)
In Stock: 18
$6.99
Down to Earth Solution Grade Gypsum | 5lb - OMRI Listed - (Case of 5)
Out of stock
$6.92 $15.49 -55%
Grotek Biofuse | 100g - (Case of 12)
In Stock: 260
$6.72 $19.79 -66%
FoxFarm Bush Doctor Kangaroots, 1 qt
Out of stock
$6.69 $36.12 -81%
Key Grow Solutions Green Dragon 0-0-18 | 32oz - (Case of 14)
In Stock: 896
$6.66 $39.99 -83%
Key Grow Solutions Silver Rabbit 7-20-4 | 32oz - (Case of 14)
In Stock: 154
$6.66 $39.99 -83%
Growth Science Organics Grow, 1 gal
In Stock: 28
$6.64 $74.99 -91%
Herculean Harvest, 1 qt
Out of stock
$6.61 $14.49 -54%
True Organic Bone Meal 7-7-0 | 3lb - Resealable Bag - Spring & Fall Application - Covers up to 61sq ft. - OMRI Listed - (Case of 6)
In Stock: 737
$6.56 $7.99 -18%
Grotek Vitamax Pro 1-1-1 | 500mL - (Case of 6)
In Stock: 6
$6.51 $14.59 -55%
Vegamatrix Amp-It, 1 gal
In Stock: 6
$6.50 $99.99 -93%
FoxFarm Bush Doctor Boomerang, 1 qt
Out of stock
$6.46 $34.83 -81%
FoxFarm Bush Doctor Sledge Hammer, 1 qt
Out of stock
$6.36 $34.28 -81%
Down to Earth Langbeinite 0-0-22 | 1lb - OMRI Listed - (Case of 6)
In Stock: 102
$6.35 $10.29 -38%
Down to Earth Potassium Sulfate 0-0-50 | 1lb - OMRI Listed - (Case of 6)
In Stock: 180
$6.35 $10.29 -38%
Remo AstroFlower, 1 L
Out of stock
$6.28 $36.99 -83%
Soul Sensei Bloom, 2.5 gal
Out of stock
$6.28 $92.39 -93%
Soul Sensei Grow, 2.5 gal
In Stock: 147
$6.28 $92.39 -93%
Soul Sensei Micro, 1 gal
In Stock: 160
$6.28 $46.19 -86%
True Organic Liquid All-Purpose Plant Food | 16oz - OMRI Listed - (Case of 6)
In Stock: 60
$6.19 $8.99 -31%
True Organic Liquid Tomato & Vegetable Food 3-2-3 | 16oz - Concentrate - Use Every Two Weeks - Covers up to 30sq ft - OMRI Listed - (Case of 6)
In Stock: 168
$6.19 $8.99 -31%
True Organic Liquid Bloom Boost | 16oz - OMRI Listed - (Case of 6)
In Stock: 174
$6.19 $8.99 -31%
House & Garden Hydro A, 20 L
In Stock: 1
$6.16 $123.99 -95%
Grotek Blossom Blaster Pro 1-4-0 | 500mL - (Case of 6)
In Stock: 30
$6.12 $17.99 -66%
Grotek Vitamax Plus, 1 L
In Stock: 146
$6.09 $24.99 -76%
Grotek Cal Max 2-0-0 | 500mL - (Case of 6)
In Stock: 12
$6.04 $11.29 -47%
Down to Earth Shrimp Meal 6-6-0 | 2lb - OMRI Listed - (Case of 6)
In Stock: 72
$5.94 $11.99 -50%
Rock Fusion Grow Base Nutrient, 1 L
In Stock: 8
$5.86 $39.99 -85%
Crystal Burst, 1 qt
Out of stock
$5.81 $29.99 -81%
HDI Clonex Rooting Gel | 15ml - Single-Use Packet - (Case of 18)
In Stock: 2918
$5.54 $6.61 -16%
Soul Sensei Bloom, 1 gal
Out of stock
$5.47 $40.16 -86%
Soul Sensei Grow, 1 gal
In Stock: 203
$5.47 $40.16 -86%
Aptus Massboost, 250 ml
Out of stock
$5.39 $52.72 -90%
DaKine 420 Atomic Root Powder | 100g - (Case of 20)
In Stock: 40
$5.37 $21.49 -75%
DaKine 420 Shock & Awe Bloom Booster | 200g - (Case of 20)
In Stock: 40
$5.37 $21.49 -75%
Great White Granular 1 Mycorrhizal | 4oz - OMRI Listed - (Case of 24)
In Stock: 269
$5.34 $6.16 -13%
FoxFarm Bush Doctor Cal-Mag, 1 qt
Out of stock
$5.11 $27.56 -81%
Grotek Final Flush | 1L - Regular - (Case of 6)
In Stock: 42
$5.02 $16.49 -70%
Key Grow Solutions Red Royal 2-0-7 | 32oz - (Case of 14)
In Stock: 140
$5.00 $29.99 -83%
Key Grow Solutions White Royal 4-10-5 | 32oz - (Case of 14)
In Stock: 158
$5.00 $27.99 -82%
Down To Earth Mini Cactus Mix 2-4-8 | 1lb - (Case of 12)
In Stock: 390
$4.99
Grotek Cal Max 2-0-0 | 1L - (Case of 6)
In Stock: 54
$4.98 $14.69 -66%
Grotek Vitamax Plus 1-1-2 | 500mL - (Case of 6)
In Stock: 30
$4.96 $14.59 -66%
Down to Earth Kelp Meal 1-0.1-2 | 0.5lb - OMRI Listed
In Stock: 228
$4.94 $6.99 -29%
Down to Earth Gypsum | 1lb - OMRI Listed - (Case of 6)
In Stock: 48
$4.92 $6.99 -30%
Grotek Insta-Green 3-0-0 | 1L - (Case of 6)
In Stock: 132
$4.81 $14.29 -66%
Grotek Insta-Green 3-0-0 | 500mL - (Case of 6)
In Stock: 12
$4.81 $10.59 -55%
Humboldt Nutrients Mayan Microzyme, 8 oz
In Stock: 4
$4.76 $34.99 -86%
Mad Farmer Be One, 1 qt
Out of stock
$4.73 $31.49 -85%
Grotek Monster Grow Pro 18-36-1 | 130g
In Stock: 84
$4.71 $13.79 -66%
Aptus Breakout Powder, (5-Pack)
Out of stock
$4.66 $72.19 -94%
Grow More Mendocino Avalanche, 1 qt
Out of stock
$4.66 $27.43 -83%
Grotek Gro-Silic, 4 L
In Stock: 951
$4.57 $232.99 -98%
Key Grow Solutions Blue Butterfly 6-4-5 | 32oz - (Case of 14)
In Stock: 98
$4.45 $22.99 -81%
DaKine 420 Nitro Nutrients Base | 200g - (Case of 20)
In Stock: 80
$4.38 $17.49 -75%
DaKine 420 Nitro Nutrients Grow | 200g - (Case of 20)
In Stock: 40
$4.38 $17.49 -75%
FoxFarm Open Sesame, 1 lb
In Stock: 285
$4.27 $57.10 -93%
Rock Fusion Bloom Base Nutrient, 1 L
In Stock: 79
$4.27 $39.99 -89%
Roots Organics Buddha Bloom, 1 qt
Out of stock
$4.24 $24.93 -83%
Remo Magnifical, 1 L
Out of stock
$4.16 $22.99 -82%
Remo Grow, 20 L
In Stock: 25
$4.12 $197.99 -98%
Down to Earth All-Purpose Mix 4-6-2 | 1lb - OMRI Listed - (Case of 12)
In Stock: 1344
$4.01 $6.29 -36%
Down To Earth Rose & Flower Mix 4-8-4 | 1lb - (Case of 12)
In Stock: 768
$4.01 $6.29 -36%
Down to Earth Acid Mix 4-3-6 | 1lb - For Acid Soil Loving Plants - (Case of 12)
In Stock: 2436
$4.01 $6.29 -36%
Down to Earth Starter Mix 3-3-3 | 1lb - OMRI Listed - (Case of 12)
In Stock: 168
$4.01 $6.29 -36%
Down to Earth Vegetable Garden 4-4-4 | 1lb - OMRI Listed - (Case of 12)
In Stock: 1116
$4.01 $6.29 -36%
Down to Earth Citrus Mix 6-3-3 | 1lb - OMRI Listed - (Case of 12)
In Stock: 2208
$4.01 $6.29 -36%
FoxFarm Open Sesame, 6 oz
In Stock: 365
$4.01 $27.02 -85%
BioAG Ful-Humix | 100g - OMRI Listed - (Case of 24)
In Stock: 314
$3.86 $12.30 -69%
Hades Down, 1 qt
Out of stock
$3.86 $22.99 -83%
Zeus Juice, 1 qt
Out of stock
$3.86 $22.99 -83%
Down to Earth Blood Meal 12-0-0 | 0.5lb - OMRI Listed - (Case of 12)
In Stock: 660
$3.81 $5.99 -36%
Down to Earth Bat Guano 7-3-1 | 0.25lb - OMRI Listed - (Case of 12)
In Stock: 744
$3.81 $5.99 -36%
Down to Earth Fish Bone Meal 4-12-0 | 1lb - OMRI Listed - (Case of 12)
In Stock: 576
$3.78 $5.99 -37%
DaKine 420 Foliar Science | 250g - (Case of 4)
In Stock: 40
$3.75 $14.99 -75%
Remo Nature's Candy, 1 L
Out of stock
$3.74 $26.99 -86%
Elite Resin D, 32 oz - A Hydrofarm Exclusive!
In Stock: 55
$3.70 $72.59 -95%
Down to Earth Alfalfa Meal 2.5-0.5-2.5 | 0.5lb - OMRI Listed
In Stock: 622
$3.69
Growth Science Organics Root Magic, 1 qt
In Stock: 98
$3.66 $44.99 -92%
Remo Grow, 1 L
In Stock: 7
$3.66 $20.99 -83%
Primordial Solutions Rootamentary, 16 oz
In Stock: 12
$3.41 $45.99 -93%
Key Grow Solutions Purple Cat 3-0-0 | 32oz - (Case of 14)
In Stock: 154
$3.33 $17.99 -81%
Remo Micro, 1 L
In Stock: 37
$3.33 $22.99 -86%
Optic Foliar REV, 500 ml - (Case of 12)
In Stock: 19
$3.28 $71.99 -95%
Optic Foliar Watts, 500 ml - (Case of 12)
In Stock: 24
$3.28 $71.99 -95%
Down to Earth AZOMITE Slow Release Powder | 1lb - OMRI Listed - (Case of 12)
In Stock: 1844
$3.14 $4.39 -28%
Plant Success Organics Soluble 0.5-0.1-7 | 0.5oz
In Stock: 1096
$3.10 $3.69 -16%
Plant Success Organics Granular 3-1-2 | 1oz - Granules - (Case of 10)
In Stock: 650
$3.03 $3.63 -17%
Medusa's Magic, 1 qt
Out of stock
$2.94 $17.49 -83%
Pegasus Potion, 1 qt
Out of stock
$2.94 $17.49 -83%
Grotek Final Flush Blueberry, 1 L
In Stock: 429
$2.87 $15.19 -81%
Roots Organics Ancient Amber, 5 gal
In Stock: 73
$2.79 $188.99 -99%
Soul Sensei Micro, 1 qt
In Stock: 1095
$2.69 $19.79 -86%
Grotek Monster Grow Pro 18-36-1 | 20g
In Stock: 1
$2.68 $7.89 -66%
Grotek Monster Bloom 0-50-30 | 15ct - 0.7oz
In Stock: 9
$2.68 $7.89 -66%
Down to Earth Oyster Shell | 1lb - OMRI Listed - (Case of 12)
Out of stock
$2.56 $3.69 -31%
Down to Earth Granular Humic Acids | 1lb - OMRI Listed - (Case of 12)
Out of stock
$2.56 $3.69 -31%
Growth Science Nutrients Rock Solid, 1 qt
In Stock: 24
$2.56 $24.99 -90%
Grotek Gro-Silic, 250 ml
In Stock: 10
$2.56 $32.99 -92%
Growth Science Organics Grow, 2.5 gal
In Stock: 37
$2.50 $174.99 -99%
FoxFarm Cultivation Nation Micro, 1 pt
In Stock: 169
$2.38 $17.50 -86%
FoxFarm Bush Doctor Cal-Mag, 1 pt
In Stock: 586
$2.37 $17.38 -86%
Mad Farmer Mother Of All Bloom, 100g
Out of stock
$2.37 $16.05 -85%
Growth Science Nutrients Base A, 1 qt
In Stock: 10
$2.30 $17.99 -87%
Aptus Massboost, 100 ml
Out of stock
$2.20 $26.50 -92%
Olympus Up, 1 qt
In Stock: 12
$2.20 $16.49 -87%
Optic Foliar ATAK Concentrate, 250 ml
In Stock: 2
$2.09 $18.99 -89%
Soul Sensei Bloom, 1 qt
In Stock: 30
$2.09 $15.39 -86%
Grotek Blossom Blaster, 20 g
In Stock: 2412
$1.96 $12.99 -85%
Growth Science Organics Abundant-Sea, 1 qt
Out of stock
$1.90 $39.99 -95%
Optic Foliar ATAK Concentrate, 1 L
In Stock: 25
$1.90 $42.99 -96%
Optic Foliar ATAK Concentrate, 4 L
In Stock: 34
$1.88 $94.99 -98%
House & Garden Multi Zen, 500 ml
In Stock: 44
$1.85 $27.29 -93%
Optic Foliar Transport, 60 ml - (Case of 12)
Out of stock
$1.56 $12.99 -88%
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