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Nutrients & Supplements

Soil Amendments
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128
SUPERthrive Mag-Pro Nutritional Supplement 2-15-4 | 32oz - (Case of 12)
In stock
$17.23 $28.09 -39%
Royal Gold Crown Jewels Bloom 1-4-2 | 5lb - (Case of 8)
In stock
$17.23 $24.84 -31%
Royal Gold Crown Jewels Grow 3-2-2 | 5lb - (Case of 8)
In stock
$17.23 $24.84 -31%
Plant Success Organics Soluble 0.5-0.1-7 | 4oz
In stock
$17.22 $23.25 -26%
Cutting Edge Solutions Cal-Mag Amplified, 1 qt
In stock
$17.20 $23.99 -28%
Maxicrop Soluble Seaweed Powder 0-0-17 | 10.7oz - OMRI Listed - (Case of 12)
Out of stock
$17.19 $24.99 -31%
Nectar for The Gods Aphrodite's Extraction Carbon 0-1-0 | 32oz
In stock
$17.19 $23.99 -28%
Nectar for The Gods Poseidonzime Foliar Spray 0-0-0.5 | 32oz
In stock
$17.19 $23.99 -28%
FoxFarm Cha Ching, 6 oz
In stock
$17.10 $27.06 -37%
FoxFarm Open Sesame, 6 oz
In stock
$17.10 $27.02 -37%
FoxFarm Beastie Bloomz, 6 oz
In stock
$17.09 $27.06 -37%
FoxFarm Marine Cuisine Dry Fertilizer, 4 lbs
In stock
$17.08 $25.78 -34%
FoxFarm Bush Doctor 1-0-0 Cal-Mag Supplement | 32oz - 3% Calcium - 0.9% Magnesium - OMRI Listed - (Case of 12)
In stock
$17.05 $26.99 -37%
BioAG Ful-Power Purified Fulvic Acid | 32oz - OMRI Listed - (Case of 12)
In stock
$17.04 $24.42 -30%
Grotek Monster Grow Pro 18-36-1 | 500g - (Case of 6)
In stock
$17.02 $52.99 -68%
Xtreme Mykos Pure Mycorrhizal Inoculum, Granular, 1 lb
In stock
$17.01 $25.99 -35%
Big Foot Mycorrhizae Concentrate | 4oz - Water-in-Root Inoculum
In stock
$17.00
True Organic Tomato & Vegetable Food 4-5-6 | 12lb - Resealable Bag - Covers up to 210sq ft - Use Monthly - OMRI Listed
In stock
$17.00 $23.99 -29%
Grotek Biofuse | 300g - (Case of 6)
In stock
$16.97 $30.29 -44%
Rhizoflora Terpinator 0-0-4 - 32oz
In stock
$16.96 $22.27 -24%
Down to Earth Oyster Shell | 25lb - OMRI Listed
Out of stock
$16.90 $25.99 -35%
SUPERthrive Root-Gel Rooting Gel | 4oz - (Case of 12)
In stock
$16.90 $27.99 -40%
Down to Earth Seabird Guano 0-11-0 | 5lb - OMRI Listed - (Case of 6)
In stock
$16.87 $29.79 -43%
SUPERthrive Pro-TeKt Nutritional Supplement 0-0-3 | 32oz - The Silicon Solution - (Case of 12)
In stock
$16.86 $28.05 -40%
FoxFarm Cha-Ching Soluble Fertilizer 9-50-10 | 6oz Jar
In stock
$16.77 $23.99 -30%
Aphrodite's Extraction, 1 qt
In stock
$16.59 $25.99 -36%
FoxFarm Open Sesame Soluble Fertilizer 5-45-19 | 6oz Jar
In stock
$16.58 $24.99 -34%
Armory Beneficial Bacteria Blend | 2oz - OMRI Listed
In stock
$16.56 $30.03 -45%
Remo Bloom, 1 L
In stock
$16.51 $20.99 -21%
BioBizz Bio-Bloom 1L CA & OR only
In stock
$16.51 $25.80 -36%
BioAg Ful-Power | 1 qt
In stock
$16.47 $25.99 -37%
BioAg Ful-Power | 1 qt (ID,IL,IA,KS,MN,NE,OH,OK,OR)
In stock
$16.47 $25.99 -37%
Xtreme Gardening Azos Root Booster | 2oz - (Case of 12)
In stock
$16.44 $21.16 -22%
Xtreme Gardening Mykos | 1lb - (Case of 12)
In stock
$16.44 $21.16 -22%
Plant Success Organics Granular, 1 lb
In stock
$16.44 $20.99 -22%
Technaflora B.C. Grow, 1 L
In stock
$16.35 $23.99 -32%
General Hydroponics Diamond Nectar 0-1-1 - 32oz
In stock
$16.33 $25.82 -37%
HDI MotherPlant Nutrients Part B | 1gal - (Case of 4)
In stock
$16.32 $49.07 -67%
FoxFarm Beastie Bloomz Fertilizer 0-50-30 | 6oz - (Case of 12)
In stock
$16.24 $23.99 -32%
DaKine 420 Shock & Awe Bloom Booster | 1,000g - (Case of 4)
In stock
$16.23 $68.99 -76%
Save 19%
Roots Organics Ancient Amber | 32oz
In stock
$16.20 $19.99 -19%
Save 19%
Roots Organics Buddha Bloom | 32oz
In stock
$16.20 $19.99 -19%
Save 19%
Roots Organics Buddha Grow | 32oz
Out of stock
$16.20 $19.99 -19%
Save 19%
Roots Organics HPK | 32oz
In stock
$16.20 $19.99 -19%
HDI Ionic Bloom Plant Nutrient 3-2-6 | 32oz
In stock
$16.20 $21.34 -24%
HDI Ionic PK BOOST Plant Nutrient 0-5-6 | 32oz
In stock
$16.20 $21.34 -24%
HDI Ionic Grow Plant Nutrient 3-1-5 | 32oz
In stock
$16.20 $21.34 -24%
HDI Ionic Grow for Soil Plant Nutrient 3-1-4 | 32oz
In stock
$16.20 $21.34 -24%
Save 5%
Cutting Edge Solutions Micro, 1 qt
In stock
$16.19 $16.99 -5%
Emerald Harvest Cal-Mag, 1 qt
In stock
$16.19 $23.00 -30%
FoxFarm Big Bloom Fertilizer 0-0.5-0.7 | 32oz - Concentrate - OMRI Listed - (Case of 12)
In stock
$16.12 $23.99 -33%
FoxFarm Open Sesame, 1 lb
In stock
$16.10 $57.10 -72%
Optic Foliar Overgrow, 1 L RTU
In stock
$16.09 $24.99 -36%
Rock Fusion Bloom Base Nutrient, 1 L
In stock
$16.05 $39.99 -60%
Xtreme Gardening Calcar Foliar Booster | 3oz - (Case of 12)
Out of stock
$16.04 $20.64 -22%
Big Foot Root Boost Nitrogen-Fixing Azospirillum | 5oz
In stock
$15.99
FoxFarm Cultivation Nation pH Up Nutrient Solution Adjuster | 32oz - Raises the pH in Nutrient Solution
In stock
$15.99 $24.99 -36%
FoxFarm Cultivation Nation pH Down Nutrient Solution Adjuster | 32oz - Lowers the pH in Nutrient Solution
In stock
$15.99 $24.99 -36%
FoxFarm Marine Cuisine Slow-Release Fertilizer 10-7-7 | 4lb - Bag - (Case of 8)
In stock
$15.99 $23.99 -33%
Roots Organics HPK 0-4-3, 1 qt
In stock
$15.96 $24.93 -36%
General Hydroponics CALiMAGic 1-0-0 - 32oz
In stock
$15.92 $25.14 -37%
Elite Root Igniter E, 8 oz - A Hydrofarm Exclusive!
In stock
$15.83 $32.99 -52%
MICROBE Life Hydroponics Photosynthesis Plus | 16oz - (Case of 12)
In stock
$15.78 $30.99 -49%
Roots Organics Terp Tea Bloom, 3 lb
In stock
$15.76 $20.51 -23%
Roots Organics Terp Tea Grow, 3 lb
In stock
$15.76 $20.51 -23%
Emerald Harvest pH Up | 32oz
In stock
$15.68 $25.50 -39%
Emerald Harvest pH Down | 32oz
In stock
$15.68 $25.50 -39%
Nectar for The Gods Demeter's Destiny Liquid Calcium 0-0.5-0 | 32oz
In stock
$15.63 $21.99 -29%
Nectar for The Gods Hades Down 0-1-0 | 32oz
In stock
$15.63 $21.99 -29%
Nectar for The Gods Zeus Juice Growth Enhancer | 32oz
In stock
$15.63 $21.99 -29%
FoxFarm Bush Doctor Manganese Micro-Nutrient 1-0-0 | 16oz - OMRI Listed - (Case of 12)
In stock
$15.60 $28.49 -45%
FoxFarm Bush Doctor Liquid Iron Micro-Nutrient 1-0-0 | 16oz - OMRI Listed - (Case of 12)
In stock
$15.60 $28.49 -45%
Nectar for The Gods One Shot 3-10-0 | 4lb - (Case of 10)
Out of stock
$15.60 $24.99 -38%
Grotek Blossom Blaster Pro Liquid, 1 L
In stock
$15.56 $29.18 -47%
MICROBE Life Hydroponics Nourish-L Liquid Fertilizer | 16oz - (Case of 12)
Out of stock
$15.55 $29.99 -48%
Neptune's Harvest Seaweed Plant Food 0-0-1 | 32oz - Concentrate - Makes 32gal - OMRI Listed - (Case of 12)
In stock
$15.53 $20.99 -26%
General Organics CaMg+ Calcium Magnesium Supplement - 32oz
In stock
$15.41 $24.49 -37%
FoxFarm Cultivation Nation Micro Fertilizer 5-0-1 | 32oz - Step 2 for 3-Part Feeding Programs
In stock
$15.32 $24.99 -39%
FoxFarm Bush Doctor Microbe Brew, 1 pt
In stock
$15.30 $21.91 -30%
Down to Earth Solution Grade Calcium 96 | 5lb - OMRI Listed - (Case of 5)
In stock
$15.29
Miracle-Gro Performance Organics Edibles | 2.5lb Jug - OMRI Listed - (Case of 6)
In stock
$15.26 $23.19 -34%
Botanicare Cal-Mag Plus 2-0-0 | 32oz
In stock
$15.24 $24.13 -37%
HDI Ionic PK BOOST Plant Nutrient 0-5-6 | 1gal - (Case of 4)
In stock
$15.21 $46.24 -67%
Bushdoctor Kangaroots 1 pt
Out of stock
$15.19 $20.24 -25%
FoxFarm Grow Big Hydro Liquid Concentate, 1 pt
Out of stock
$15.08 $19.66 -23%
Grotek Blossom Blaster 1-4-0 | 15/box - 20g
In stock
$14.99
General Organics BioThrive Bloom 2-4-4 | 32oz
In stock
$14.99 $23.63 -37%
Olivia's Cloning Gel | 4oz - (Case of 24)
In stock
$14.98 $22.95 -35%
Down to Earth Solution Grade Potassium Sulfate 0-0-50 | 5lb - OMRI Listed - (Case of 5)
In stock
$14.89 $24.49 -39%
Technaflora B.C. Bloom, 1 L
In stock
$14.87 $23.99 -38%
Save 8%
Gaia Green Worm Castings, 2 L U.S. (NA02) Pouch
In stock
$14.75 $15.99 -8%
Emerald Harvest Cal-Mag | 32oz
In stock
$14.72 $23.00 -36%
Neptune's Harvest Fish Fertilizer 2-4-1 | 36oz - Concentrate - OMRI Listed - (Case of 12)
In stock
$14.71 $22.39 -34%
Save 19%
Roots Organics HP2 | 32oz
In stock
$14.62 $17.99 -19%
Botanicare Silica Blast 0-0-0.5 - 32oz
In stock
$14.57 $23.13 -37%
Zeus Juice, 1 qt
In stock
$14.52 $22.99 -37%
FoxFarm Tiger Bloom Liquid Concentrate, 1 pt
In stock
$14.44 $18.80 -23%
Down to Earth Liquid All-Purpose 4-1-3 | 32oz - (Case of 10)
In stock
$14.43 $22.99 -37%
Bushdoctor Boomerang 1 pt
Out of stock
$14.37 $19.40 -26%
Save 15%
Mother Earth Power Flower Fantastic Flowering Mix 1-8-6 - 2.4lb
In stock
$14.27 $16.88 -15%
Save 15%
Mother Earth Farmer's Market All Purpose Mix 4-5-4 - 4.4lb
In stock
$14.27 $16.88 -15%
Save 15%
Mother Earth Season's Choice Tomato & Vegetable Mix 4-5-6 - 4.4lb
In stock
$14.27 $16.88 -15%
Save 15%
Mother Earth Acid Drop for Acid -Loving Plants 3-4-6 - 4.4lb
In stock
$14.27 $16.88 -15%
Coast of Maine Quoddy Blend Organic Lobster Compost | 1cu ft - OMRI Listed - (Case of 5)
In stock
$14.26 $23.99 -41%
House & Garden Cocos A, 1 L
In stock
$14.26 $20.24 -30%
House & Garden Soil A, 1 L
In stock
$14.26 $20.24 -30%
House & Garden Soil B, 1 L
In stock
$14.26 $20.24 -30%
Mother Earth Floressence Bloom Supplement 1-1-1 - 32oz
In stock
$14.21 $32.53 -56%
Save 17%
Roots Organics Terp Tea Bloom | 3lb - (Case of 3)
In stock
$14.17 $16.99 -17%
Save 17%
Roots Organics Terp Tea Grow | 3lb - (Case of 3)
Out of stock
$14.17 $16.99 -17%
Down to Earth Liquid Calcium 5% | 32oz - OMRI Listed - (Case of 10)
In stock
$14.13 $22.79 -38%
FoxFarm Bush Doctor Wholly Mackerel, 1 pt
Out of stock
$14.08 $22.48 -37%
Mad Farmer Mother Of All Bloom, 250g
In stock
$14.05 $32.12 -56%
Down to Earth Fish Bone Powder 4-20-0 | 1lb - (Case of 6)
In stock
$13.99
Grotek Vital 5% Calcium | 1L - (Case of 6)
In stock
$13.96 $37.97 -63%
Emerald Harvest Micro, 1 qt
In stock
$13.84 $18.00 -23%
Mad Farmer Cal+Mag, 1 qt
In stock
$13.82 $21.62 -36%
General Hydroponics FloraNova Grow 7-4-10 - 16oz
In stock
$13.80 $21.86 -37%
General Hydroponics FloraNova Bloom 4-8-7 - 16oz
In stock
$13.80 $21.86 -37%
Growth Science Organics Root Magic, 1 qt
In stock
$13.77 $44.99 -69%
Cultivation Nation Bloom 1 qt
Out of stock
$13.77 $18.79 -27%
Cultivation Nation Grow 1 qt
Out of stock
$13.77 $18.79 -27%
Remo Grow, 1 L
In stock
$13.76 $20.99 -34%
FoxFarm Bush Doctor Microbe Brew Microbial Inoculant 1-0.3-0.2 | 16oz - Concentrate
In stock
$13.71 $20.99 -35%
Down to Earth Langbeinite 0-0-22 | 5lb - OMRI Listed - (Case of 6)
In stock
$13.67 $19.59 -30%
Grotek Rype 3-0-0 | 1L - (Case of 6)
In stock
$13.66 $37.15 -63%
MICROBE Life Hydroponics Foliar Spray & Root Dip | 16oz - (Case of 12)
In stock
$13.64 $26.99 -49%
General Hydroponics MaxiBloom 5-15-14 - 2.2lb
In stock
$13.54 $21.51 -37%
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