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Nutrients & Supplements

Soil Amendments
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128
Down To Earth Palm Tree Mix 6-2-8 | 5lb
In stock
$17.99
Down To Earth Cactus Mix 2-4-8 | 5lb
In stock
$17.99
Save 14%
Roots Organics Surge | 32oz
In stock
$17.96 $20.99 -14%
SUPERthrive Pro-TeKt Nutritional Supplement 0-0-3 | 32oz - The Silicon Solution
In stock
$17.82 $27.49 -35%
Save 15%
Remo Bloom, 1 L
In stock
$17.80 $20.99 -15%
Save 15%
Remo Grow, 1 L
In stock
$17.80 $20.99 -15%
Grotek Vitamax Pro 1-1-1 | 1L
In stock
$17.79 $25.39 -30%
Plant Success Organics Soluble 0.5-0.1-7 | 4oz
In stock
$17.71 $22.15 -20%
Rock Fusion Bloom Base Nutrient, 1 L
In stock
$17.69 $39.99 -56%
Big Foot Mycorrhizae Concentrate | 8oz - Concentrate
In stock
$17.68 $27.79 -36%
Technaflora B.C. Bloom, 1 L
In stock
$17.62 $23.99 -27%
Technaflora B.C. Grow, 1 L
In stock
$17.62 $23.99 -27%
General Hydroponics Diamond Nectar 0-1-1 - 32oz
In stock
$17.61 $25.82 -32%
Down to Earth Neem Seed Meal 6-1-2 | 5lb - OMRI Listed
In stock
$17.53 $25.49 -31%
Save 8%
Gaia Green Mineralized Phosphate, 2 kg Pouch
In stock
$17.52 $18.99 -8%
Save 18%
Dr. Earth Premium Organic Bat Guano 10-3-1 | 1.5lb - Poly Bag
In stock
$17.50 $21.29 -18%
Save 18%
HDI Ionic Bloom Plant Nutrient 3-2-6 | 32oz
In stock
$17.47 $21.34 -18%
Save 18%
HDI Ionic PK BOOST Plant Nutrient 0-5-6 | 32oz
In stock
$17.47 $21.34 -18%
Save 18%
HDI Ionic Grow Plant Nutrient 3-1-5 | 32oz
In stock
$17.47 $21.34 -18%
Save 18%
HDI Ionic Grow for Soil Plant Nutrient 3-1-4 | 32oz
In stock
$17.47 $21.34 -18%
Emerald Harvest Cal-Mag, 1 qt
In stock
$17.46 $23.00 -24%
Save 17%
Nectar for the Gods One Shot Granules, 4 lb
Out of stock
$17.37 $20.99 -17%
FoxFarm Open Sesame, 1 lb
In stock
$17.36 $57.10 -70%
FoxFarm Bush Doctor Bembé Sweet & Dandy 0-1-3 | 16oz - Concentrate
In stock
$17.29 $22.99 -25%
General Hydroponics CALiMAGic 1-0-0 - 32oz
In stock
$17.17 $25.14 -32%
Elite Root Igniter E, 8 oz - A Hydrofarm Exclusive!
In stock
$17.07 $32.99 -48%
Save 16%
Xtreme Gardening Azos Root Booster | 2oz
In stock
$17.04 $20.34 -16%
Save 16%
Xtreme Gardening Mykos | 1lb
In stock
$17.04 $20.34 -16%
MICROBE Life Hydroponics Photosynthesis Plus | 16oz
In stock
$17.02 $30.99 -45%
Save 17%
Roots Organics Terp Tea Bloom, 3 lb
In stock
$16.99 $20.51 -17%
Save 17%
Roots Organics Terp Tea Grow, 3 lb
In stock
$16.99 $20.51 -17%
Emerald Harvest pH Up | 32oz
In stock
$16.90 $25.50 -34%
Emerald Harvest pH Down | 32oz
In stock
$16.90 $25.50 -34%
Key Grow Solutions Green Dragon 0-0-18 | 32oz
In stock
$16.89 $39.99 -58%
Key Grow Solutions Silver Rabbit 7-20-4 | 32oz
In stock
$16.89 $39.99 -58%
Save 15%
Plant Success Organics Granular, 1 lb
In stock
$16.89 $19.95 -15%
Nectar for The Gods Demeter's Destiny Liquid Calcium 0-0.5-0 | 32oz
In stock
$16.85 $21.99 -23%
Nectar for The Gods Hades Down 0-1-0 | 32oz
In stock
$16.85 $21.99 -23%
Nectar for The Gods Zeus Juice Growth Enhancer | 32oz
In stock
$16.85 $21.99 -23%
Save 16%
Roots Organics Ancient Amber | 32oz
In stock
$16.84 $19.99 -16%
Save 16%
Roots Organics Buddha Bloom | 32oz
In stock
$16.84 $19.99 -16%
Save 16%
Roots Organics Buddha Grow | 32oz
In stock
$16.84 $19.99 -16%
Save 16%
Roots Organics HPK | 32oz
In stock
$16.84 $19.99 -16%
FoxFarm Bush Doctor Liquid Iron Micro-Nutrient 1-0-0 | 16oz - OMRI Listed
In stock
$16.82 $28.49 -41%
Nectar for The Gods One Shot 3-10-0 | 4lb
Out of stock
$16.82 $24.99 -33%
Grotek Blossom Blaster Pro Liquid, 1 L
In stock
$16.78 $29.18 -42%
MICROBE Life Hydroponics Nourish-L Liquid Fertilizer | 16oz
In stock
$16.77 $29.99 -44%
Grotek Blossom Blaster Pro 1-4-0 | 1L
In stock
$16.75 $30.69 -45%
Neptune's Harvest Seaweed Plant Food 0-0-1 | 32oz - Concentrate - Makes 32gal - OMRI Listed
In stock
$16.74 $20.99 -20%
Mad Farmer Mother Of All Bloom, 250g
In stock
$16.68 $32.12 -48%
General Organics CaMg+ Calcium Magnesium Supplement - 32oz
In stock
$16.62 $24.49 -32%
FoxFarm Bush Doctor Wholly Mackerel Fertilizer 3-1-0 | 16oz - Concentrate
In stock
$16.55 $21.99 -25%
Miracle-Gro Performance Organics Edibles | 2.5lb Jug - OMRI Listed
In stock
$16.45 $23.19 -29%
Save 16%
Xtreme Gardening Calcar Foliar Booster | 3oz
In stock
$16.45 $19.64 -16%
Botanicare Cal-Mag Plus 2-0-0 | 32oz
In stock
$16.44 $24.13 -32%
FoxFarm Grow Big Hydroponic Fertilizer 3-2-6 | 16oz - Concentrate
Out of stock
$16.42 $21.99 -25%
Mad Farmer Cal+Mag, 1 qt
In stock
$16.41 $21.62 -24%
Save 17%
Soul Sensei Micro, 1 qt
In stock
$16.38 $19.79 -17%
Save 17%
FoxFarm Grow Big® Hydro Liquid Concentate, 1 pt
In stock
$16.26 $19.66 -17%
Save 5%
Cutting Edge Solutions Micro, 1 qt
In stock
$16.19 $16.99 -5%
Roots Organics HPK 0-4-3, 2.5 gal
Out of stock
$16.19 $145.94 -89%
General Organics BioThrive Bloom 2-4-4 | 32oz
In stock
$16.16 $23.63 -32%
Olivia's Cloning Gel | 4oz
In stock
$16.15 $22.95 -30%
Save 17%
Gaia Mania, 1 qt
In stock
$16.09 $19.49 -17%
Save 17%
Roots Organics Uprising Bloom, 3 lbs
In stock
$16.09 $19.43 -17%
Save 17%
Roots Organics Uprising Foundation, 3 lbs
In stock
$16.09 $19.43 -17%
Save 17%
Roots Organics Uprising Grow, 3 lbs
In stock
$16.09 $19.43 -17%
Down to Earth Solution Grade Langbeinite 0-0-22 | 5lb - OMRI Listed
In stock
$16.05 $24.49 -34%
Down to Earth Solution Grade Potassium Sulfate 0-0-50 | 5lb - OMRI Listed
In stock
$16.05 $24.49 -34%
Grotek Vital 5% Calcium | 500mL
In stock
$16.05 $25.58 -37%
FoxFarm Bush Doctor Microbe Brew Microbial Inoculant 1-0.3-0.2 | 16oz - Concentrate
In stock
$15.99 $20.99 -24%
Grotek Monster Bloom 0-50-30 | 130g
In stock
$15.99
FoxFarm Bush Doctor Liquid Iron Micro-Nutrient 1-0-0 | 32oz - OMRI Listed
In stock
$15.98 $50.69 -68%
Technaflora MagiCal, 1 L
Out of stock
$15.98 $20.99 -24%
Plant Success Organics Granular 3-1-2 | 1lb - Granules
In stock
$15.93 $19.95 -20%
Emerald Harvest Cal-Mag | 32oz
In stock
$15.87 $23.00 -31%
Neptune's Harvest Fish Fertilizer 2-4-1 | 36oz - Concentrate - OMRI Listed
In stock
$15.86 $22.39 -29%
Botanicare Silica Blast 0-0-0.5 - 32oz
In stock
$15.70 $23.13 -32%
FoxFarm Happy Frog Cavern Culture Fertilizer 1-12-0 | 4lb - OMRI Listed
In stock
$15.69 $19.99 -22%
Save 17%
FoxFarm Grow Big Fertilizer 6-4-4 | 16oz - Concentrate
In stock
$15.69 $18.99 -17%
Save 8%
Age Old Grow, 32 oz
In stock
$15.65 $16.99 -8%
Save 8%
Age Old Bloom, 32 oz
In stock
$15.65 $16.99 -8%
Save 17%
FoxFarm Grow Big® Liquid Concentrate, 1 pt
In stock
$15.57 $18.80 -17%
Save 17%
FoxFarm Tiger Bloom® Liquid Concentrate, 1 pt
In stock
$15.57 $18.80 -17%
Down to Earth Liquid All-Purpose 4-1-3 | 32oz
In stock
$15.55 $22.99 -32%
Grotek Rype 3-0-0 | 500mL
In stock
$15.54 $24.75 -37%
FoxFarm Bush Doctor Kangaroots Root Drench Inoculant 0.8-0.1-0.03 | 16oz - Concentrate
In stock
$15.48 $19.99 -23%
DaKine 420 Nitro Nutrients Base | 500g
In stock
$15.46 $28.99 -47%
DaKine 420 Nitro Nutrients Bloom | 500g
In stock
$15.46 $28.99 -47%
DaKine 420 Bio Minerals | 500g
In stock
$15.46 $28.99 -47%
DaKine 420 Sticky Icky Enzymes | 100g
In stock
$15.46 $28.99 -47%
DaKine 420 Nitro Nutrients Grow | 500g
In stock
$15.46 $28.99 -47%
Down to Earth Agmino Powder 14-0-0 | 1lb
Out of stock
$15.46 $25.69 -40%
Grotek Solo-Tek Bloom 3-8-8 | 1L
In stock
$15.44 $28.29 -45%
Grotek Solo-Tek Grow 6-3-7 | 1L
In stock
$15.44 $28.29 -45%
FoxFarm Bush Doctor Kelp Me Kelp You 0.5-0-0.5 | 16oz - Concentrate - OMRI Listed
In stock
$15.40 $19.99 -23%
House & Garden Aqua Flakes A, 1 L
In stock
$15.37 $20.24 -24%
House & Garden Aqua Flakes B, 1 L
In stock
$15.37 $20.24 -24%
House & Garden Cocos A, 1 L
In stock
$15.37 $20.24 -24%
House & Garden Cocos B, 1 L
In stock
$15.37 $20.24 -24%
House & Garden Soil A, 1 L
In stock
$15.37 $20.24 -24%
House & Garden Soil B, 1 L
In stock
$15.37 $20.24 -24%
Save 17%
Roots Organics Nitro Bat Guano, 3 lbs
In stock
$15.30 $18.34 -17%
Down to Earth Solution Grade Calcium 96 | 5lb - OMRI Listed
In stock
$15.29
Down to Earth Liquid Calcium 5% | 32oz - OMRI Listed
In stock
$15.24 $22.79 -33%
FoxFarm Bush Doctor Sledgehammer | 16oz -OMRI Listed
In stock
$15.22 $19.99 -24%
Save 16%
Roots Organics HP2 | 32oz
In stock
$15.19 $17.99 -16%
FoxFarm Bush Doctor Wholly Mackerel, 1 pt
Out of stock
$15.18 $22.48 -32%
Save 11%
Cutting Edge Solutions Bloom, 1 qt
In stock
$15.06 $16.99 -11%
Grotek Blossom Blaster 1-4-0 | 15/box - 20g
In stock
$14.99
Save 17%
Emerald Harvest Micro, 1 qt
In stock
$14.92 $18.00 -17%
General Hydroponics FloraNova Grow 7-4-10 - 16oz
In stock
$14.88 $21.86 -32%
General Hydroponics FloraNova Bloom 4-8-7 - 16oz
In stock
$14.88 $21.86 -32%
Growth Science Organics Root Magic, 1 qt
In stock
$14.85 $44.99 -67%
Save 12%
Mother Earth Power Flower Fantastic Flowering Mix 1-8-6 - 2.4lb
In stock
$14.83 $16.88 -12%
Save 12%
Mother Earth Farmer's Market All Purpose Mix 4-5-4 - 4.4lb
In stock
$14.83 $16.88 -12%
Save 12%
Mother Earth Season's Choice Tomato & Vegetable Mix 4-5-6 - 4.4lb
In stock
$14.83 $16.88 -12%
Save 12%
Mother Earth Acid Drop for Acid -Loving Plants 3-4-6 - 4.4lb
In stock
$14.83 $16.88 -12%
Key Grow Solutions Blue Butterfly 6-4-5 | 32oz
In stock
$14.82 $22.99 -36%
Save 8%
Cutting Edge Solutions Grow, 1 qt
In stock
$14.76 $15.99 -8%
Save 8%
Gaia Green Worm Castings, 2 L U.S. (NA02) Pouch
In stock
$14.75 $15.99 -8%
Down to Earth Langbeinite 0-0-22 | 5lb - OMRI Listed
In stock
$14.74 $19.59 -25%
Save 13%
Roots Organics Terp Tea Bloom | 3lb
In stock
$14.72 $16.99 -13%
Save 13%
Roots Organics Terp Tea Grow | 3lb
In stock
$14.72 $16.99 -13%
MICROBE Life Hydroponics Vegetable & Fruit Yield Enhancer | 16oz
In stock
$14.71 $26.99 -45%
MICROBE Life Hydroponics Foliar Spray & Root Dip | 16oz
In stock
$14.71 $26.99 -45%
FoxFarm Bush Doctor Boomerang Comeback Formula 2-0.2-0.3 | 16oz
In stock
$14.63 $18.99 -23%
General Hydroponics MaxiBloom 5-15-14 - 2.2lb
In stock
$14.60 $21.51 -32%
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