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Nutrients & Supplements

Soil Amendments
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128
Neptune's Harvest Fish Fertilizer 2-4-1 | 1gal - Concentrate - OMRI Listed - (Case of 4)
In stock
$36.12 $47.99 -25%
Grotek Monster Bloom, 500 g
In stock
$35.98 $45.99 -22%
GH General Organics BioBud Quart (Case of 12)
In stock
$35.85 $52.35 -32%
Big Foot Mycorrhizae Gold | 4oz
In stock
$35.72
Great White Premium Mycorrhizae, 4 oz
In stock
$35.60 $44.99 -21%
Grotek Vitamax Pro 1-1-1 | 4L - (Case of 4)
In stock
$35.43 $85.79 -59%
Down to Earth Bone Meal 3-15-0 | 25lb - OMRI Listed
In stock
$35.42 $51.99 -32%
Save 19%
Happy Frog Soil Conditioner, 3 cu ft,77.2 dry qts
Out of stock
$35.37 $43.67 -19%
Primordial Solutions Rootamentary, 16 oz
In stock
$35.29 $45.99 -23%
FoxFarm Cultivation Nation pH DOWN, 1 pint, case of 12
In stock
$35.25 $144.40 -76%
Nectar for The Gods Athena's Aminas 0.5-0-0 | 1gal
Out of stock
$35.14 $48.99 -28%
Nectar for The Gods Hygeia Hydration Yucca Extract | 1gal - (Case of 4)
Out of stock
$35.14 $48.99 -28%
Nectar for The Gods Medusa's Magic Soil Nutrient 2-5-2 | 1gal - (Case of 4)
In stock
$35.14 $48.99 -28%
Nectar for The Gods Mega Morpheus Guano Tea 0-2-0 | 1gal - (Case of 4)
In stock
$35.14 $48.99 -28%
Nectar for The Gods The Kraken Crab & Shrimp 0-4-0 | 1gal - (Case of 4)
Out of stock
$35.14 $48.99 -28%
HDI Ionic Bloom Plant Nutrient 3-2-6 | 1gal - (Case of 4)
In stock
$35.11 $46.24 -24%
HDI Ionic Grow Plant Nutrient 3-1-5 | 1gal - (Case of 4)
In stock
$35.11 $46.24 -24%
HDI Ionic Bloom for Soil Premium Plant Nutrient 2-2-5 | 1gal - (Case of 4)
In stock
$35.11 $46.24 -24%
HDI Ionic Grow for Soil Plant Nutrient 3-1-4 | 1gal - (Case of 4)
In stock
$35.11 $46.24 -24%
Nectar for The Gods One Shot 3-10-0 | 12lb - (Case of 3)
Out of stock
$35.11 $54.99 -36%
Cultivation Nation Grow 1 gal
Out of stock
$35.11 $47.85 -27%
Down To Earth Fruit Tree 6-2-4 | 25lb - OMRI Listed
In stock
$35.03 $51.99 -33%
Down To Earth Rose & Flower Mix 4-8-4 | 25lb - OMRI Listed
In stock
$34.85 $50.69 -31%
Elite Resin D, 32 oz - A Hydrofarm Exclusive!
In stock
$34.84 $72.59 -52%
House & Garden Cocos A, 5 L
In stock
$34.84 $49.48 -30%
House & Garden Cocos B, 5 L
In stock
$34.84 $49.48 -30%
Remo Grow, 4 L
In stock
$34.84 $49.99 -30%
Botanicare Silica Blast 0-0-0.5 - 1gal
In stock
$34.78 $54.78 -37%
Roots Organics Terp Tea Bloom, 9 lb
In stock
$34.56 $53.99 -36%
Roots Organics Terp Tea Grow, 9 lb
In stock
$34.56 $53.99 -36%
Remo Bloom, 4 L
In stock
$34.51 $48.99 -30%
Save 18%
Hygrozyme Horticultural Enzyme Formula, 1 L
In stock
$34.48 $41.99 -18%
Save 4%
General Hydroponics Flora Series Trial Pack | 3pc - 32oz FloraMicro, 32oz FloraGro, and 32oz FloraBloom
In stock
$34.46 $35.77 -4%
Down to Earth Liquid Bone Meal 0-12-0 | 1gal - (Case of 4)
Out of stock
$34.39 $48.99 -30%
DaKine 420 Atomic Root Powder | 1,000g - (Case of 4)
In stock
$34.11 $144.99 -76%
Technaflora B.C. Boost, 4 L
In stock
$34.07 $52.99 -36%
Royal Gold Crown Jewels Bloom 1-4-2 | 10lb - (Case of 4)
In stock
$33.84 $48.78 -31%
Royal Gold Crown Jewels Grow 3-2-2 | 10lb - (Case of 4)
In stock
$33.84 $48.78 -31%
BioAg Ful-Power | 1 gal
In stock
$33.82 $52.99 -36%
HDI Ionic PK BOOST Plant Nutrient 0-5-6 | 2.5gal - (Case of 2)
In stock
$33.79 $99.65 -66%
MICROBE Life Hydroponics All-In-One | 32oz - (Case of 12)
In stock
$33.69
HEAVY 16 Foliar, 32 oz
In stock
$33.59 $52.49 -36%
Plant Success Great White Premium Mycorrhizae | 4oz
In stock
$33.43 $45.16 -26%
Grotek Pro-Silicate, 4 L
In stock
$33.42 $46.99 -29%
Roots Organics Rain, 1 qt
In stock
$33.38 $52.15 -36%
Technaflora Awesome Blossoms, 1 L
In stock
$33.38 $47.99 -30%
Grotek Blossom Blaster Pro 1-4-0 | 4L - (Case of 4)
In stock
$33.33 $104.29 -68%
Down to Earth Fish Bone Meal 4-12-0 | 25lb - OMRI Listed
In stock
$33.19 $48.99 -32%
Cutting Edge Solutions Micro, 1 gal
In stock
$33.18 $41.99 -21%
Medusa's Magic, 1 gal
In stock
$33.18 $51.99 -36%
Save 9%
MegaPhos SP Phosphorus Solubilizing Microbe | 2oz - OMRI Listed
Out of stock
$33.16 $36.57 -9%
Cutting Edge Solutions Louder Powder Grow A (15-0-0), 5 lb Bag
In stock
$33.15 $49.99 -34%
Cutting Edge Solutions Louder Powder Grow B (8-13-31), 5 lb Bag
In stock
$33.15 $49.99 -34%
Save 2%
Magnesium Sulfate Epsom Salts | 50lb (49/PL) - OMRI Listed
In stock
$33.05 $33.57 -2%
Grotek Bud Fuel Pro 1-3-4 | 4L - (Case of 4)
In stock
$33.01 $103.29 -68%
Biobizz Acti-Vera 1L CA & OR only
In stock
$33.01 $51.58 -36%
Biobizz Acti-Vera 1L
In stock
$33.01 $51.58 -36%
Save 16%
HYGROZYME Horticultural Horticulture Enzyme Formula | 1L (0.26gal)
Out of stock
$32.83 $39.00 -16%
Grotek Monster Grow Pro, 500 g
In stock
$32.70 $45.99 -29%
Olympus Up, 1 gal
In stock
$32.69 $46.49 -30%
Plant Success Orca | 16oz
In stock
$32.65 $44.11 -26%
Botanicare Hydroplex Bloom 0-10-6 - 32oz
In stock
$32.32 $50.89 -36%
Rock Rootinator, 5 L
In stock
$32.00 $269.99 -88%
HEAVY 16 Bud A, 1 gal
In stock
$32.00 $50.01 -36%
HEAVY 16 Bud B, 1 gal
In stock
$32.00 $50.01 -36%
HEAVY 16 Veg A, 1 gal
In stock
$32.00 $50.01 -36%
HEAVY 16 Veg B, 1 gal
In stock
$32.00 $50.01 -36%
Cultivation Nation Bloom 1 gal
Out of stock
$31.92 $47.85 -33%
Biobizz Alg-A-Mic, 1 L
In stock
$31.82 $45.20 -30%
BioBizz Alg-a-Mic 1L CA & OR only
In stock
$31.82 $45.20 -30%
CYCO 5L Kleanse (2/CS) - (Case of 2)
In stock
$31.68 $50.04 -37%
SUPERthrive Root-Gel Rooting Gel | 8oz - (Case of 12)
Out of stock
$31.68 $51.99 -39%
House & Garden Aqua Flakes A, 5 L
In stock
$31.67 $49.48 -36%
House & Garden Aqua Flakes B, 5 L
In stock
$31.67 $49.48 -36%
House & Garden Soil A, 5 L
In stock
$31.67 $49.48 -36%
House & Garden Soil B, 5 L
In stock
$31.67 $49.48 -36%
Grotek Insta-Green 3-0-0 | 4L - (Case of 4)
In stock
$31.63 $44.99 -30%
Orca Premium Liquid Mycorrhizae, 16 oz
In stock
$31.58 $43.99 -28%
House & Garden Multi Zen, 1 L
In stock
$31.53 $49.27 -36%
Save 15%
PRO-MIX BRK BIOFUNGICIDE + MYCORRHIZAE Peat/Bark Mix | 2.8cu ft - Loose Fill (48/PL)
Out of stock
$31.51 $37.04 -15%
Down To Earth Vegetable Garden 4-4-4 | 25lb - OMRI Listed
In stock
$31.33 $44.69 -30%
Down to Earth All-Purpose Mix 4-6-2 | 25lb - OMRI Listed
In stock
$31.33 $44.69 -30%
Nectar for The Gods Olympus Up | 1gal - (Case of 4)
In stock
$31.26 $42.99 -27%
Roots Organics Uprising Bloom, 9 lbs
In stock
$31.10 $48.59 -36%
Roots Organics Uprising Foundation, 9 lbs
In stock
$31.10 $48.59 -36%
Roots Organics Uprising Grow, 9 lbs
Out of stock
$31.10 $48.59 -36%
HDI Clonex Mist Root Promoter | 750ml - (Case of 6)
In stock
$31.07 $40.90 -24%
House & Garden Bio 1-Component, 1 L
In stock
$31.05 $44.10 -30%
Save 16%
Roots Organics Terp Tea Microbe Charge, 3 lb
In stock
$31.00 $36.71 -16%
Save 16%
Roots Organics Terp Tea Microbe Charge 3lb
In stock
$31.00 $36.71 -16%
Technaflora B.C. Bloom, 4 L
In stock
$30.98 $47.99 -35%
Technaflora B.C. Grow, 4 L
In stock
$30.98 $47.99 -35%
Down to Earth Acid Mix 4-3-6 | 25lb - For Acid Soil Loving Plants
In stock
$30.87 $43.99 -30%
Optic Foliar REV, 500 ml - (Case of 12)
In stock
$30.80 $71.99 -57%
Optic Foliar Watts, 500 ml - (Case of 12)
In stock
$30.80 $71.99 -57%
Save 15%
PRO-MIX BRK20 BIOFUNGICIDE + MYCORRHIZAE Peat/Bark Mix | 2.8cu ft - Loose Fill (48/PL)
In stock
$30.69 $36.07 -15%
Cutting Edge Solutions Louder Powder Bloom A (14-0-0), 5 lb Bag
In stock
$30.69 $49.99 -39%
Cutting Edge Solutions Louder Powder Bloom B (0-25-24), 5 lb Bag
In stock
$30.69 $49.99 -39%
FoxFarm Bush Doctor Microbe Brew, 1 qt
In stock
$30.69 $42.55 -28%
Grotek Pro-Silicate 0-0-4 | 4L - (Case of 4)
In stock
$30.45 $53.99 -44%
DaKine 420 Shock & Awe Bloom Booster | 2,000g - (Case of 4)
Out of stock
$30.35 $128.99 -76%
BioAG Cytoplus | 300g - (Case of 12)
Out of stock
$30.04 $43.07 -30%
BioAG VAM Endo-Mix | 300g - (Case of 12)
In stock
$30.04 $43.07 -30%
Botanicare Pure Blend Tea 0.5-0.5-1 - 1gal
In stock
$29.82 $47.07 -37%
Xtreme Gardening Versity Bacillus Blend | 2oz - Poly Bag - (Case of 12)
Out of stock
$29.79
Cutting Edge Solutions Bloom, 1 gal
In stock
$29.79 $37.99 -22%
Coast of Maine Stonington Blend Organic Natural Grower's Mix | 1.5cu ft - OMRI Listed - (Case of 6)
In stock
$29.68 $46.29 -36%
General Hydroponics FloraPro Late Bloom 0-24-26 - 5lb
In stock
$29.61 $45.48 -35%
HDI Europonic FossilFuel Liquid Humic Acids | 1gal - (Case of 4)
Out of stock
$29.57 $54.99 -46%
Soul Sensei Micro, 1 gal
In stock
$29.56 $46.19 -36%
Save 17%
Roots Organics Extreme Serene | 32oz
In stock
$29.17 $34.99 -17%
Roots Organics Extreme Serene, 1 qt
In stock
$29.03 $45.35 -36%
Down To Earth Island Phosphate 0-11-0 | 5lb - (Case of 6)
In stock
$28.99
Mother Earth LiquiCraft Bloom 2-4-4 - 1gal
In stock
$28.93 $66.22 -56%
MILLS BASIS A 5LTR
In stock
$28.80 $45.00 -36%
MILLS BASIS B 5 LTR
In stock
$28.80 $45.00 -36%
FoxFarm Open Sesame, 2 lbs
In stock
$28.61 $99.39 -71%
Xtreme Azos Beneficial Bacteria, 6 oz (170 g)
In stock
$28.43 $40.99 -31%
Save 17%
Roots Organics Terp Tea Microbe Charge | 3lb - (Case of 3)
Out of stock
$28.36 $33.99 -17%
Soul Sensei Bloom, 1 gal
In stock
$28.28 $40.16 -30%
Soul Sensei Grow, 1 gal
In stock
$28.28 $40.16 -30%
Botanicare Clearex Rinsing Solution - 1gal
In stock
$28.21 $44.36 -36%
Save 19%
Cutting Edge Solutions Mag-Amped, 1 qt
In stock
$28.17 $34.99 -19%
Emerald Harvest Emerald Goddess 2-1-4 | 32oz
In stock
$28.16 $44.00 -36%
Emerald Harvest King Kola 0.3-2-3 | 32oz
In stock
$28.16 $44.00 -36%
Emerald Harvest King Kola 0.3-2-3 | 32oz (FL, NM, PA)
Out of stock
$28.16 $44.00 -36%
Emerald Harvest Honey Chome 0.5-0.5-1 | 32oz
In stock
$28.16 $44.00 -36%
Emerald Harvest Emerald Goddess, 1 qt
In stock
$28.16 $44.00 -36%
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