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Nutrients & Supplements

Soil Amendments
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128
Down to Earth Oyster Shell | 25lb - OMRI Listed
Out of stock
$17.03 $25.99 -34%
SUPERthrive Root-Gel Rooting Gel | 4oz - (Case of 12)
In stock
$17.03 $27.99 -39%
Big Foot Mycorrhizae Concentrate | 4oz - Water-in-Root Inoculum
Out of stock
$17.00
Down to Earth Seabird Guano 0-11-0 | 5lb - OMRI Listed - (Case of 6)
In stock
$17.00 $29.79 -43%
SUPERthrive Pro-TeKt Nutritional Supplement 0-0-3 | 32oz - The Silicon Solution - (Case of 12)
In stock
$16.99 $28.05 -39%
FoxFarm Bush Doctor Microbe Brew, 1 pt
In stock
$16.95 $21.91 -23%
Aphrodite's Extraction, 1 qt
In stock
$16.72 $25.99 -36%
Armory Beneficial Bacteria Blend | 2oz - OMRI Listed
In stock
$16.69 $30.03 -44%
Biobizz Bio-Bloom | 1 L
In stock
$16.64 $25.80 -36%
Biobizz Bio-Grow | 1 L
In stock
$16.64 $25.80 -36%
Remo Bloom, 1 L
In stock
$16.64 $20.99 -21%
Remo Grow, 1 L
In stock
$16.64 $20.99 -21%
BioBizz Bio-Bloom 1L CA & OR only
In stock
$16.64 $25.80 -36%
BioAg Ful-Power | 1 qt
In stock
$16.60 $25.99 -36%
Xtreme Gardening Azos Root Booster | 2oz - (Case of 12)
In stock
$16.56 $21.16 -22%
Xtreme Gardening Mykos | 1lb - (Case of 12)
In stock
$16.56 $21.16 -22%
Rock Fusion Bloom Base Nutrient, 1 L
In stock
$16.54 $39.99 -59%
General Hydroponics Diamond Nectar 0-1-1 - 32oz
In stock
$16.46 $25.82 -36%
HDI MotherPlant Nutrients Part B | 1gal - (Case of 4)
In stock
$16.45 $49.07 -66%
FoxFarm Bush Doctor Kangaroots Root Drench Inoculant 0.8-0.1-0.03 | 16oz - Concentrate
In stock
$16.42 $19.99 -18%
MICROBE Life Hydroponics Foliar Spray & Root Dip | 32oz - (Case of 12)
In stock
$16.40 $41.99 -61%
DaKine 420 Shock & Awe Bloom Booster | 1,000g - (Case of 4)
In stock
$16.36 $68.99 -76%
Roots Organics Ancient Amber | 32oz
In stock
$16.33 $19.99 -18%
Roots Organics Buddha Bloom | 32oz
In stock
$16.33 $19.99 -18%
Roots Organics Buddha Grow | 32oz
Out of stock
$16.33 $19.99 -18%
Roots Organics HPK | 32oz
In stock
$16.33 $19.99 -18%
HDI Ionic Bloom Plant Nutrient 3-2-6 | 32oz
In stock
$16.33 $21.34 -23%
HDI Ionic PK BOOST Plant Nutrient 0-5-6 | 32oz
In stock
$16.33 $21.34 -23%
HDI Ionic Grow Plant Nutrient 3-1-5 | 32oz
In stock
$16.33 $21.34 -23%
HDI Ionic Grow for Soil Plant Nutrient 3-1-4 | 32oz
In stock
$16.33 $21.34 -23%
Emerald Harvest Cal-Mag, 1 qt
In stock
$16.32 $23.00 -29%
FoxFarm Open Sesame, 1 lb
In stock
$16.23 $57.10 -72%
Xtreme Gardening Calcar Foliar Booster | 3oz - (Case of 12)
Out of stock
$16.16 $20.64 -22%
FoxFarm Cultivation Nation Micro, 1 qt
Out of stock
$16.11 $23.98 -33%
Roots Organics HPK 0-4-3, 1 qt
In stock
$16.09 $24.93 -35%
Roots Organics Buddha Grow 1qt
In stock
$16.09 $24.93 -35%
General Hydroponics CALiMAGic 1-0-0 - 32oz
In stock
$16.05 $25.14 -36%
FoxFarm Bush Doctor Sledgehammer | 16oz -OMRI Listed
In stock
$16.03 $19.99 -20%
Neptune's Harvest Seaweed Plant Food 0-0-1 | 32oz - Concentrate - Makes 32gal - OMRI Listed - (Case of 12)
In stock
$16.01 $21.29 -25%
Big Foot Root Boost Nitrogen-Fixing Azospirillum | 5oz
In stock
$15.99
Elite Root Igniter E, 8 oz - A Hydrofarm Exclusive!
In stock
$15.96 $32.99 -52%
MICROBE Life Hydroponics Photosynthesis Plus | 16oz - (Case of 12)
In stock
$15.91 $30.99 -49%
FoxFarm Bush Doctor Bemb Sweet & Dandy 0-1-3 | 16oz - Concentrate
In stock
$15.91 $22.99 -31%
Roots Organics Terp Tea Grow, 3 lb
In stock
$15.88 $20.51 -23%
Emerald Harvest pH Up | 32oz
In stock
$15.80 $25.50 -38%
Emerald Harvest pH Down | 32oz
In stock
$15.80 $25.50 -38%
Remo Micro, 1 L
In stock
$15.80 $22.99 -31%
Remo Magnifical, 1 L
In stock
$15.80 $22.99 -31%
Age Old Bloom, 32 oz
In stock
$15.78 $16.99 -7%
Nectar for The Gods Demeter's Destiny Liquid Calcium 0-0.5-0 | 32oz
In stock
$15.75 $21.99 -28%
Nectar for The Gods Hades Down 0-1-0 | 32oz
In stock
$15.75 $21.99 -28%
Nectar for The Gods Zeus Juice Growth Enhancer | 32oz
In stock
$15.75 $21.99 -28%
Grotek Blossom Blaster Pro Liquid, 1 L
In stock
$15.69 $29.18 -46%
MICROBE Life Hydroponics Nourish-L Liquid Fertilizer | 16oz - (Case of 12)
In stock
$15.67 $29.99 -48%
General Organics CaMg+ Calcium Magnesium Supplement - 32oz
In stock
$15.53 $24.49 -37%
FoxFarm Bush Doctor Boomerang Comeback Formula 2-0.2-0.3 | 16oz
In stock
$15.53 $18.99 -18%
Miracle-Gro Performance Organics Edibles | 2.5lb Jug - OMRI Listed - (Case of 6)
In stock
$15.38 $23.19 -34%
Botanicare Cal-Mag Plus 2-0-0 | 32oz
In stock
$15.36 $24.13 -36%
Mad Farmer Cal+Mag, 1 qt
In stock
$15.34 $21.62 -29%
HDI Ionic PK BOOST Plant Nutrient 0-5-6 | 1gal - (Case of 4)
In stock
$15.33 $46.24 -67%
Down to Earth Solution Grade Calcium 96 | 5lb - OMRI Listed - (Case of 5)
In stock
$15.29
FoxFarm Grow Big Hydroponic Fertilizer 3-2-6 | 16oz - Concentrate
In stock
$15.23 $21.99 -31%
FoxFarm Bush Doctor Wholly Mackerel Fertilizer 3-1-0 | 16oz - Concentrate
In stock
$15.21 $21.99 -31%
General Organics BioThrive Bloom 2-4-4 | 32oz
In stock
$15.11 $23.63 -36%
Olivia's Cloning Gel | 4oz - (Case of 24)
In stock
$15.09 $22.95 -34%
Plant Success Organics Granular, 1 lb
In stock
$15.07 $20.99 -28%
Gaia Mania, 1 qt
In stock
$15.04 $19.49 -23%
Roots Organics Uprising Grow, 3 lbs
In stock
$15.04 $19.43 -23%
FoxFarm Cultivation Nation Grow 2-1-6 | 32oz
In stock
$15.03 $18.99 -21%
FoxFarm Cultivation Nation Bloom 0-5-4 | 32oz
In stock
$15.03 $18.99 -21%
Neptune's Harvest Fish Fertilizer 2-4-1 | 36oz - Concentrate - OMRI Listed - (Case of 12)
In stock
$15.03 $22.59 -33%
Down to Earth Solution Grade Potassium Sulfate 0-0-50 | 5lb - OMRI Listed - (Case of 5)
In stock
$15.00 $24.49 -39%
Grotek Blossom Blaster 1-4-0 | 15/box - 20g
In stock
$14.99
Technaflora B.C. Bloom, 1 L
In stock
$14.99 $23.99 -38%
Technaflora B.C. Grow, 1 L
In stock
$14.99 $23.99 -38%
Bushdoctor Sledgehammer 1 pt
Out of stock
$14.95 $20.15 -26%
Gaia Green Worm Castings, 2 L U.S. (NA02) Pouch
In stock
$14.86 $15.99 -7%
Emerald Harvest Cal-Mag | 32oz
In stock
$14.84 $23.00 -35%
Bushdoctor Bembe Pt
Out of stock
$14.84 $19.60 -24%
Roots Organics HP2 | 32oz
In stock
$14.73 $17.99 -18%
Gaia Green Mineralized Phosphate, 2 kg Pouch
In stock
$14.72 $18.99 -22%
Botanicare Silica Blast 0-0-0.5 - 32oz
In stock
$14.68 $23.13 -37%
Hades Down, 1 qt
In stock
$14.63 $22.99 -36%
Roots Organics HP2 0-4-0, 1 qt
In stock
$14.63 $22.67 -35%
FoxFarm Tiger Bloom Liquid Concentrate, 1 pt
In stock
$14.55 $18.80 -23%
Down to Earth Liquid All-Purpose 4-1-3 | 32oz - (Case of 10)
In stock
$14.54 $22.99 -37%
FoxFarm Bush Doctor Kelp Me Kelp You 0.5-0-0.5 | 16oz - Concentrate - OMRI Listed
In stock
$14.49 $19.99 -28%
Bushdoctor Boomerang 1 pt
Out of stock
$14.49 $19.40 -25%
FoxFarm Happy Frog Cavern Culture Fertilizer 1-12-0 | 4lb - OMRI Listed - (Case of 12)
In stock
$14.42 $19.99 -28%
Mother Earth Power Flower Fantastic Flowering Mix 1-8-6 - 2.4lb
In stock
$14.38 $16.88 -15%
Mother Earth Farmer's Market All Purpose Mix 4-5-4 - 4.4lb
In stock
$14.38 $16.88 -15%
Mother Earth Season's Choice Tomato & Vegetable Mix 4-5-6 - 4.4lb
In stock
$14.38 $16.88 -15%
Mother Earth Acid Drop for Acid -Loving Plants 3-4-6 - 4.4lb
In stock
$14.38 $16.88 -15%
House & Garden Aqua Flakes B, 1 L
In stock
$14.37 $20.24 -29%
House & Garden Cocos A, 1 L
In stock
$14.37 $20.24 -29%
House & Garden Cocos B, 1 L
In stock
$14.37 $20.24 -29%
House & Garden Soil A, 1 L
In stock
$14.37 $20.24 -29%
FoxFarm Cultivation Nation Cal-Mag | 32oz
In stock
$14.34 $19.99 -28%
Mother Earth Floressence Bloom Supplement 1-1-1 - 32oz
In stock
$14.32 $32.53 -56%
Roots Organics Nitro Bat Guano, 3 lbs
In stock
$14.31 $18.34 -22%
Roots Organics Terp Tea Bloom | 3lb - (Case of 3)
In stock
$14.28 $16.99 -16%
Roots Organics Terp Tea Grow | 3lb - (Case of 3)
Out of stock
$14.28 $16.99 -16%
Down to Earth Liquid Calcium 5% | 32oz - OMRI Listed - (Case of 10)
In stock
$14.24 $22.79 -38%
Mad Farmer Mother Of All Bloom, 250g
In stock
$14.16 $32.12 -56%
Grotek Vital 5% Calcium | 1L - (Case of 6)
In stock
$14.07 $37.97 -63%
Down to Earth Fish Bone Powder 4-20-0 | 1lb - (Case of 6)
Out of stock
$13.99
Emerald Harvest Micro, 1 qt
In stock
$13.94 $18.00 -23%
Bushdoctor Kangaroots 1 pt
Out of stock
$13.92 $20.24 -31%
General Hydroponics FloraNova Grow 7-4-10 - 16oz
In stock
$13.91 $21.86 -36%
General Hydroponics FloraNova Bloom 4-8-7 - 16oz
In stock
$13.91 $21.86 -36%
Rhizoflora Terpinator 0-0-4 - 32oz
In stock
$13.88 $22.27 -38%
Growth Science Organics Root Magic, 1 qt
In stock
$13.88 $44.99 -69%
Down to Earth Langbeinite 0-0-22 | 5lb - OMRI Listed - (Case of 6)
In stock
$13.78 $19.59 -30%
Grotek Rype 3-0-0 | 1L - (Case of 6)
In stock
$13.76 $37.15 -63%
MICROBE Life Hydroponics Vegetable & Fruit Yield Enhancer | 16oz - (Case of 12)
In stock
$13.75 $26.99 -49%
MICROBE Life Hydroponics Foliar Spray & Root Dip | 16oz - (Case of 12)
In stock
$13.75 $26.99 -49%
General Hydroponics MaxiBloom 5-15-14 - 2.2lb
In stock
$13.65 $21.51 -37%
General Hydroponics MaxiGro 10-5-14 - 2.2lb
In stock
$13.65 $21.51 -37%
Coast of Maine Quoddy Blend Organic Lobster Compost | 1cu ft - OMRI Listed - (Case of 5)
In stock
$13.62 $23.99 -43%
FoxFarm Tiger Bloom Buds & Blooms Fertilizer 2-8-4 | 16oz - Concentrate
In stock
$13.61 $16.99 -20%
HDI MotherPlant Nutrients Part A | 32oz
In stock
$13.61 $17.78 -23%
HDI MotherPlant Nutrients Part B | 32oz
In stock
$13.61 $17.78 -23%
Cutting Edge Solutions Micro, 1 qt
In stock
$13.60 $16.99 -20%
FoxFarm Grow Big Fertilizer 6-4-4 | 16oz - Concentrate
In stock
$13.58 $18.99 -28%
Great White Premium Mycorrhizae, 1 oz
In stock
$13.54 $15.99 -15%
Down to Earth Alfalfa Meal 2.5-0.5-2.5 | 4lb - OMRI Listed
In stock
$13.49
Down to Earth Blood Meal 12-0-0 | 4lb - OMRI Listed - (Case of 6)
In stock
$13.45 $23.49 -43%
Gaia Green Super Fly, 750 g Pouch
In stock
$13.44 $14.99 -10%
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