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Nutrients & Supplements

Soil Amendments
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128
HDI Clonex Rooting Gel | 250ml - Wide Mouth Bottle
In stock
$35.61 $48.02 -26%
Biobizz Acti-Vera 1L CA & OR only
In stock
$35.46 $51.58 -31%
Biobizz Acti-Vera 1L
In stock
$35.46 $51.58 -31%
SUPERthrive Pure Neem Oil Organic Leaf Polish | 32oz - (Case of 12)
Out of stock
$35.41 $59.25 -40%
Down to Earth Starter Mix 3-3-3 | 50lb - OMRI Listed
In stock
$35.29 $102.29 -66%
Neptune's Harvest Fish Fertilizer 2-4-1 | 1gal - Concentrate - OMRI Listed - (Case of 4)
In stock
$35.28 $47.99 -26%
GH General Organics BioBud Quart (Case of 12)
In stock
$35.01 $52.35 -33%
Grotek Vitamax Pro 1-1-1 | 4L - (Case of 4)
In stock
$34.60 $85.79 -60%
Down to Earth Bone Meal 3-15-0 | 25lb - OMRI Listed
In stock
$34.59 $51.99 -33%
Save 4%
General Hydroponics Flora Series Trial Pack | 3pc - 32oz FloraMicro, 32oz FloraGro, and 32oz FloraBloom
In stock
$34.46 $35.77 -4%
FoxFarm Cultivation Nation pH DOWN, 1 pint, case of 12
In stock
$34.42 $144.40 -76%
Royal Gold Crown Jewels Bloom 1-4-2, 10 lb
In stock
$34.36 $45.79 -25%
Royal Gold Crown Jewels Grow 3-2-2, 10 lb
Out of stock
$34.36 $45.79 -25%
Nectar for The Gods Athena's Aminas 0.5-0-0 | 1gal
In stock
$34.31 $48.99 -30%
Nectar for The Gods Hygeia Hydration Yucca Extract | 1gal - (Case of 4)
Out of stock
$34.31 $48.99 -30%
Nectar for The Gods Medusa's Magic Soil Nutrient 2-5-2 | 1gal - (Case of 4)
In stock
$34.31 $48.99 -30%
Nectar for The Gods Mega Morpheus Guano Tea 0-2-0 | 1gal - (Case of 4)
In stock
$34.31 $48.99 -30%
Nectar for The Gods The Kraken Crab & Shrimp 0-4-0 | 1gal - (Case of 4)
Out of stock
$34.31 $48.99 -30%
HDI Ionic Bloom Plant Nutrient 3-2-6 | 1gal - (Case of 4)
In stock
$34.29 $46.24 -26%
HDI Ionic Grow Plant Nutrient 3-1-5 | 1gal - (Case of 4)
In stock
$34.29 $46.24 -26%
HDI Ionic Bloom for Soil Premium Plant Nutrient 2-2-5 | 1gal - (Case of 4)
In stock
$34.29 $46.24 -26%
HDI Ionic Grow for Soil Plant Nutrient 3-1-4 | 1gal - (Case of 4)
In stock
$34.29 $46.24 -26%
Nectar for The Gods One Shot 3-10-0 | 12lb - (Case of 3)
Out of stock
$34.29 $54.99 -38%
Cultivation Nation Grow 1 gal
Out of stock
$34.29 $47.85 -28%
Down To Earth Fruit Tree 6-2-4 | 25lb - OMRI Listed
In stock
$34.21 $51.99 -34%
Down To Earth Rose & Flower Mix 4-8-4 | 25lb - OMRI Listed
In stock
$34.04 $50.69 -33%
Elite Resin D, 32 oz - A Hydrofarm Exclusive!
In stock
$34.02 $72.59 -53%
House & Garden Aqua Flakes A, 5 L
In stock
$34.02 $49.48 -31%
House & Garden Aqua Flakes B, 5 L
In stock
$34.02 $49.48 -31%
House & Garden Cocos A, 5 L
In stock
$34.02 $49.48 -31%
House & Garden Cocos B, 5 L
In stock
$34.02 $49.48 -31%
Botanicare Silica Blast 0-0-0.5 - 1gal
In stock
$33.96 $54.78 -38%
House & Garden Multi Zen, 1 L
In stock
$33.88 $49.27 -31%
Roots Organics Terp Tea Bloom, 9 lb
In stock
$33.75 $53.99 -37%
Roots Organics Terp Tea Grow, 9 lb
In stock
$33.75 $53.99 -37%
MICROBE Life Hydroponics All-In-One | 32oz - (Case of 12)
In stock
$33.69
Down to Earth Liquid Bone Meal 0-12-0 | 1gal - (Case of 4)
Out of stock
$33.59 $48.99 -31%
Mad Farmer Cal+Mag, 1 gal
In stock
$33.59 $53.71 -37%
Royal Gold Imperial Boost 0-15-11 | 10lb - (Case of 4)
In stock
$33.52 $47.99 -30%
Mad Farmer Nutrient UpTake Solution (N.U.T.S.), 1 gal
In stock
$33.48 $53.55 -37%
DaKine 420 Atomic Root Powder | 1,000g - (Case of 4)
In stock
$33.31 $144.99 -77%
Technaflora B.C. Bloom, 4 L
In stock
$33.28 $47.99 -31%
Technaflora B.C. Grow, 4 L
In stock
$33.28 $47.99 -31%
Royal Gold Crown Jewels Bloom 1-4-2 | 10lb - (Case of 4)
In stock
$33.06 $47.99 -31%
Royal Gold Crown Jewels Grow 3-2-2 | 10lb - (Case of 4)
In stock
$33.06 $47.99 -31%
Save 2%
Magnesium Sulfate Epsom Salts | 50lb (49/PL) - OMRI Listed
In stock
$33.05 $33.57 -2%
BioAg Ful-Power | 1 gal
In stock
$33.02 $52.99 -38%
BioAg Ful-Power | 1 gal (ID,IL,IA,KS,MN,NE,OH,OK,OR)
In stock
$33.02 $52.99 -38%
HDI Ionic PK BOOST Plant Nutrient 0-5-6 | 2.5gal - (Case of 2)
In stock
$33.00 $99.65 -67%
HEAVY 16 Foliar, 32 oz
In stock
$32.80 $52.49 -38%
Grotek Pro-Silicate, 4 L
In stock
$32.64 $46.99 -31%
Roots Organics Rain, 1 qt
In stock
$32.60 $52.15 -37%
Technaflora Awesome Blossoms, 1 L
In stock
$32.60 $47.99 -32%
Grotek Blossom Blaster Pro 1-4-0 | 4L - (Case of 4)
In stock
$32.55 $104.29 -69%
Down to Earth Fish Bone Meal 4-12-0 | 25lb - OMRI Listed
In stock
$32.41 $48.99 -34%
Cutting Edge Solutions Micro, 1 gal
In stock
$32.40 $41.99 -23%
Athena's Aminas, 1 gal
In stock
$32.40 $51.99 -38%
The Kraken, 1 gal
Out of stock
$32.40 $51.99 -38%
Save 11%
MegaPhos SP Phosphorus Solubilizing Microbe | 2oz - OMRI Listed
Out of stock
$32.39 $36.57 -11%
Grotek Bud Fuel Pro 1-3-4 | 4L - (Case of 4)
In stock
$32.24 $103.29 -69%
Save 18%
HYGROZYME Horticultural Horticulture Enzyme Formula | 1L (0.26gal)
Out of stock
$32.06 $39.00 -18%
Grotek Monster Bloom, 500 g
In stock
$31.94 $45.99 -31%
Grotek Monster Grow Pro, 500 g
In stock
$31.94 $45.99 -31%
Great White Premium Mycorrhizae, 4 oz
In stock
$31.60 $44.99 -30%
Botanicare Hydroplex Bloom 0-10-6 - 32oz
In stock
$31.56 $50.89 -38%
Primordial Solutions Rootamentary, 16 oz
In stock
$31.34 $45.99 -32%
Rock Rootinator, 5 L
In stock
$31.25 $269.99 -88%
HEAVY 16 Bud A, 1 gal
In stock
$31.25 $50.01 -38%
HEAVY 16 Bud B, 1 gal
In stock
$31.25 $50.01 -38%
HEAVY 16 Veg A, 1 gal
In stock
$31.25 $50.01 -38%
HEAVY 16 Veg B, 1 gal
In stock
$31.25 $50.01 -38%
Roots Organics Extreme Serene, 1 qt
In stock
$31.19 $45.35 -31%
Plant Success Great White Premium Mycorrhizae | 4oz
In stock
$31.18 $43.08 -28%
Cultivation Nation Bloom 1 gal
Out of stock
$31.18 $47.85 -35%
Happy Frog Soil Conditioner, 3 cu ft,77.2 dry qts
Out of stock
$31.17 $43.67 -29%
CYCO 5L Kleanse (2/CS) - (Case of 2)
In stock
$30.94 $50.04 -38%
SUPERthrive Root-Gel Rooting Gel | 8oz - (Case of 12)
Out of stock
$30.94 $51.99 -40%
MILLS BASIS B 5 LTR
In stock
$30.94 $45.00 -31%
House & Garden Soil A, 5 L
In stock
$30.92 $49.48 -38%
House & Garden Soil B, 5 L
In stock
$30.92 $49.48 -38%
Remo Grow, 4 L
In stock
$30.92 $49.99 -38%
Grotek Insta-Green 3-0-0 | 4L - (Case of 4)
In stock
$30.89 $44.99 -31%
Orca Premium Liquid Mycorrhizae, 16 oz
In stock
$30.84 $43.99 -30%
Save 17%
PRO-MIX BRK BIOFUNGICIDE + MYCORRHIZAE Peat/Bark Mix | 2.8cu ft - Loose Fill (48/PL)
Out of stock
$30.78 $37.04 -17%
Optic Foliar REV, 500 ml - (Case of 12)
In stock
$30.75 $71.99 -57%
Optic Foliar Watts, 500 ml - (Case of 12)
In stock
$30.75 $71.99 -57%
Remo Bloom, 4 L
In stock
$30.62 $48.99 -37%
Hygrozyme Horticultural Enzyme Formula, 1 L
In stock
$30.62 $41.99 -27%
Down To Earth Vegetable Garden 4-4-4 | 25lb - OMRI Listed
In stock
$30.60 $44.69 -32%
Down to Earth All-Purpose Mix 4-6-2 | 25lb - OMRI Listed
In stock
$30.60 $44.69 -32%
Nectar for The Gods Olympus Up | 1gal - (Case of 4)
In stock
$30.52 $42.99 -29%
Plant Success Orca | 16oz
In stock
$30.44 $42.07 -28%
Roots Organics Uprising Bloom, 9 lbs
In stock
$30.38 $48.59 -37%
Roots Organics Uprising Foundation, 9 lbs
In stock
$30.38 $48.59 -37%
Roots Organics Uprising Grow, 9 lbs
In stock
$30.38 $48.59 -37%
HDI Clonex Mist Root Promoter | 750ml - (Case of 6)
In stock
$30.34 $40.90 -26%
House & Garden Bio 1-Component, 1 L
In stock
$30.32 $44.10 -31%
Biomin Copper | 2.5gal - OMRI Listed
In stock
$30.19 $98.30 -69%
Down to Earth Acid Mix 4-3-6 | 25lb - For Acid Soil Loving Plants
In stock
$30.15 $43.99 -31%
Save 17%
PRO-MIX BRK20 BIOFUNGICIDE + MYCORRHIZAE Peat/Bark Mix | 2.8cu ft - Loose Fill (48/PL)
In stock
$29.98 $36.07 -17%
Cutting Edge Solutions Louder Powder Grow A (15-0-0), 5 lb Bag
In stock
$29.98 $49.99 -40%
Cutting Edge Solutions Louder Powder Grow B (8-13-31), 5 lb Bag
In stock
$29.98 $49.99 -40%
Cutting Edge Solutions Louder Powder Bloom A (14-0-0), 5 lb Bag
In stock
$29.98 $49.99 -40%
Cutting Edge Solutions Louder Powder Bloom B (0-25-24), 5 lb Bag
In stock
$29.98 $49.99 -40%
FoxFarm Bush Doctor Microbe Brew, 1 qt
In stock
$29.98 $42.55 -30%
Xtreme Gardening Versity Bacillus Blend | 2oz - Poly Bag - (Case of 12)
Out of stock
$29.79
Grotek Pro-Silicate 0-0-4 | 4L - (Case of 4)
In stock
$29.74 $53.99 -45%
Roots Organics Nitro Bat Guano, 9 lbs
In stock
$29.70 $43.19 -31%
DaKine 420 Shock & Awe Bloom Booster | 2,000g - (Case of 4)
In stock
$29.64 $128.99 -77%
BioAG Cytoplus | 300g - (Case of 12)
In stock
$29.34 $43.07 -32%
BioAG VAM Endo-Mix | 300g - (Case of 12)
In stock
$29.34 $43.07 -32%
Botanicare Pure Blend Tea 0.5-0.5-1 - 1gal
In stock
$29.12 $47.07 -38%
Olympus Up, 1 gal
In stock
$29.02 $46.49 -38%
Coast of Maine Stonington Blend Organic Natural Grower's Mix | 1.5cu ft - OMRI Listed - (Case of 6)
In stock
$28.99 $46.29 -37%
Down To Earth Island Phosphate 0-11-0 | 5lb - (Case of 6)
Out of stock
$28.99
General Hydroponics FloraPro Late Bloom 0-24-26 - 5lb
In stock
$28.91 $45.48 -36%
HDI Europonic FossilFuel Liquid Humic Acids | 1gal - (Case of 4)
Out of stock
$28.88 $54.99 -47%
Soul Sensei Micro, 1 gal
In stock
$28.86 $46.19 -38%
Aptus Believer Pack
Out of stock
$28.75 $92.06 -69%
Save 19%
Roots Organics Extreme Serene | 32oz
In stock
$28.49 $34.99 -19%
Mother Earth LiquiCraft Bloom 2-4-4 - 1gal
In stock
$28.25 $66.22 -57%
Biobizz Alg-A-Mic, 1 L
In stock
$28.25 $45.20 -38%
BioBizz Alg-a-Mic 1L CA & OR only
In stock
$28.25 $45.20 -38%
CYCO Commercial Series Bloom 8-6-11 - 750g
In stock
$28.22 $66.11 -57%
MILLS BASIS A 5LTR
In stock
$28.12 $45.00 -38%
Optic Foliar Transport, 250 ml
In stock
$28.01 $39.99 -30%
Mad Farmer Mother Of All Bloom 500g
In stock
$27.99 $53.54 -48%
Grow More Bio-Cozyme, 1 gal
In stock
$27.96 $39.99 -30%
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