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Nutrients & Supplements

Soil Amendments
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Gaia Green Mineralized Phosphate, 2 kg Pouch
Out of stock
$17.11 $18.99 -10%
Royal Gold Imperial Boost 0-15-11 | 5lb - (Case of 8)
In stock
$17.08 $24.99 -32%
House & Garden Multi Zen, 500 ml
In stock
$17.06 $27.29 -37%
Sustane 4-6-4 Flower & Vegetable Plant Food | 20lb - OMRI Listed
In stock
$17.05 $25.76 -34%
Mother Earth LiquiCraft Grow 4-3-3 - 32oz
In stock
$17.04 $27.53 -38%
Mother Earth LiquiCraft Bloom 2-4-4 - 32oz
In stock
$17.04 $27.53 -38%
Big Foot Mycorrhizae Concentrate | 4oz - Water-in-Root Inoculum
In stock
$17.00
Neptune's Harvest Fish & Seaweed Fertilizer 2-3-1 | 36oz - Concentrate - OMRI Listed - (Case of 12)
In stock
$16.98 $23.29 -27%
Down to Earth Soluble Root Zone | 4oz - OMRI Listed - (Case of 12)
In stock
$16.95 $25.99 -35%
Roots Organics Surge | 32oz
In stock
$16.88 $20.99 -20%
Royal Gold Crown Jewels Bloom 1-4-2 | 5lb - (Case of 8)
In stock
$16.86 $24.99 -33%
Royal Gold Crown Jewels Grow 3-2-2 | 5lb - (Case of 8)
In stock
$16.86 $24.99 -33%
SUPERthrive Mag-Pro Nutritional Supplement 2-15-4 | 32oz - (Case of 12)
In stock
$16.82 $28.09 -40%
Cutting Edge Solutions Cal-Mag Amplified, 1 qt
In stock
$16.80 $23.99 -30%
Maxicrop Soluble Seaweed Powder 0-0-17 | 10.7oz - OMRI Listed - (Case of 12)
Out of stock
$16.79 $24.99 -33%
Nectar for The Gods Aphrodite's Extraction Carbon 0-1-0 | 32oz
In stock
$16.79 $23.99 -30%
Nectar for The Gods Poseidonzime Foliar Spray 0-0-0.5 | 32oz
In stock
$16.79 $23.99 -30%
FoxFarm Cha Ching, 6 oz
In stock
$16.70 $27.06 -38%
FoxFarm Beastie Bloomz, 6 oz
In stock
$16.69 $27.06 -38%
FoxFarm Marine Cuisine Dry Fertilizer, 4 lbs
In stock
$16.68 $25.78 -35%
FoxFarm Bush Doctor 1-0-0 Cal-Mag Supplement | 32oz - 3% Calcium - 0.9% Magnesium - OMRI Listed - (Case of 12)
In stock
$16.65 $26.99 -38%
BioAG Ful-Power Purified Fulvic Acid | 32oz - OMRI Listed - (Case of 12)
Out of stock
$16.64 $24.42 -32%
MICROBE Life Hydroponics Foliar Spray & Root Dip | 32oz - (Case of 12)
In stock
$16.64 $41.99 -60%
Grotek Monster Grow Pro 18-36-1 | 500g - (Case of 6)
In stock
$16.62 $52.99 -69%
Xtreme Mykos Pure Mycorrhizal Inoculum, Granular, 1 lb
In stock
$16.61 $25.99 -36%
True Organic Tomato & Vegetable Food 4-5-6 | 12lb - Resealable Bag - Covers up to 210sq ft - Use Monthly - OMRI Listed
In stock
$16.60 $23.99 -31%
Grotek Biofuse | 300g - (Case of 6)
In stock
$16.58 $30.29 -45%
Rhizoflora Terpinator 0-0-4 - 32oz
In stock
$16.56 $22.27 -26%
Down to Earth Oyster Shell | 25lb - OMRI Listed
Out of stock
$16.50 $25.99 -37%
SUPERthrive Root-Gel Rooting Gel | 4oz - (Case of 12)
In stock
$16.50 $27.99 -41%
Down to Earth Seabird Guano 0-11-0 | 5lb - OMRI Listed - (Case of 6)
In stock
$16.48 $29.79 -45%
SUPERthrive Pro-TeKt Nutritional Supplement 0-0-3 | 32oz - The Silicon Solution - (Case of 12)
In stock
$16.46 $28.05 -41%
FoxFarm Bush Doctor Microbe Brew, 1 pt
In stock
$16.42 $21.91 -25%
FoxFarm Cha-Ching Soluble Fertilizer 9-50-10 | 6oz Jar
Out of stock
$16.38 $23.99 -32%
Aphrodite's Extraction, 1 qt
In stock
$16.20 $25.99 -38%
Poseidonzime, 1 qt
In stock
$16.20 $25.99 -38%
FoxFarm Open Sesame Soluble Fertilizer 5-45-19 | 6oz Jar
In stock
$16.19 $24.99 -35%
Armory Beneficial Bacteria Blend | 2oz - OMRI Listed
In stock
$16.18 $30.03 -46%
Remo Grow, 1 L
In stock
$16.12 $20.99 -23%
Plant Success Organics Granular, 1 lb
In stock
$16.05 $20.99 -24%
Plant Success Organics Soluble 0.5-0.1-7 | 4oz
In stock
$16.04 $22.15 -28%
Big Foot Root Boost Nitrogen-Fixing Azospirillum | 5oz
In stock
$15.99
Technaflora B.C. Bloom, 1 L
In stock
$15.96 $23.99 -33%
Technaflora B.C. Grow, 1 L
In stock
$15.96 $23.99 -33%
General Hydroponics Diamond Nectar 0-1-1 - 32oz
In stock
$15.95 $25.82 -38%
HDI MotherPlant Nutrients Part B | 1gal - (Case of 4)
In stock
$15.94 $49.07 -68%
Down to Earth Neem Seed Meal 6-1-2 | 5lb - OMRI Listed - (Case of 6)
In stock
$15.88 $25.49 -38%
FoxFarm Beastie Bloomz Fertilizer 0-50-30 | 6oz - (Case of 12)
In stock
$15.86 $23.99 -34%
DaKine 420 Shock & Awe Bloom Booster | 1,000g - (Case of 4)
In stock
$15.85 $68.99 -77%
Roots Organics Ancient Amber | 32oz
In stock
$15.82 $19.99 -21%
Roots Organics Buddha Bloom | 32oz
In stock
$15.82 $19.99 -21%
Roots Organics Buddha Grow | 32oz
In stock
$15.82 $19.99 -21%
Roots Organics HPK | 32oz
In stock
$15.82 $19.99 -21%
HDI Ionic Bloom Plant Nutrient 3-2-6 | 32oz
In stock
$15.82 $21.34 -26%
HDI Ionic PK BOOST Plant Nutrient 0-5-6 | 32oz
In stock
$15.82 $21.34 -26%
HDI Ionic Grow Plant Nutrient 3-1-5 | 32oz
In stock
$15.82 $21.34 -26%
HDI Ionic Grow for Soil Plant Nutrient 3-1-4 | 32oz
In stock
$15.82 $21.34 -26%
Emerald Harvest Cal-Mag, 1 qt
In stock
$15.81 $23.00 -31%
FoxFarm Big Bloom Fertilizer 0-0.5-0.7 | 32oz - Concentrate - OMRI Listed - (Case of 12)
In stock
$15.74 $23.99 -34%
Green Gro Ultrafine Mycorrhizae All-in-One, 4 oz
In stock
$15.74 $20.99 -25%
FoxFarm Open Sesame, 1 lb
In stock
$15.72 $57.10 -72%
Optic Foliar Overgrow, 1 L RTU
In stock
$15.71 $24.99 -37%
Rock Fusion Bloom Base Nutrient, 1 L
In stock
$15.68 $39.99 -61%
FoxFarm Cultivation Nation pH Up Nutrient Solution Adjuster | 32oz - Raises the pH in Nutrient Solution
In stock
$15.61 $24.99 -38%
FoxFarm Cultivation Nation pH Down Nutrient Solution Adjuster | 32oz - Lowers the pH in Nutrient Solution
In stock
$15.61 $24.99 -38%
FoxFarm Marine Cuisine Slow-Release Fertilizer 10-7-7 | 4lb - Bag - (Case of 8)
In stock
$15.61 $23.99 -35%
FoxFarm Cultivation Nation Micro, 1 qt
Out of stock
$15.61 $23.98 -35%
Roots Organics HPK 0-4-3, 1 qt
In stock
$15.59 $24.93 -37%
General Hydroponics CALiMAGic 1-0-0 - 32oz
In stock
$15.55 $25.14 -38%
Elite Root Igniter E, 8 oz - A Hydrofarm Exclusive!
In stock
$15.46 $32.99 -53%
Xtreme Gardening Azos Root Booster | 2oz - (Case of 12)
In stock
$15.44 $20.34 -24%
Xtreme Gardening Mykos | 1lb - (Case of 12)
In stock
$15.44 $20.34 -24%
MICROBE Life Hydroponics Photosynthesis Plus | 16oz - (Case of 12)
In stock
$15.41 $30.99 -50%
Emerald Harvest pH Up | 32oz
In stock
$15.31 $25.50 -40%
Emerald Harvest pH Down | 32oz
In stock
$15.31 $25.50 -40%
Remo Micro, 1 L
In stock
$15.31 $22.99 -33%
Remo Magnifical, 1 L
In stock
$15.31 $22.99 -33%
Down to Earth Kelp Meal 1-0.1-2 | 5lb - OMRI Listed
Out of stock
$15.30 $37.49 -59%
Down to Earth Solution Grade Calcium 96 | 5lb - OMRI Listed - (Case of 5)
In stock
$15.29
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Age Old Grow, 32 oz
In stock
$15.29 $16.99 -10%
Save 10%
Age Old Bloom, 32 oz
In stock
$15.29 $16.99 -10%
Nectar for The Gods Demeter's Destiny Liquid Calcium 0-0.5-0 | 32oz
In stock
$15.26 $21.99 -31%
Nectar for The Gods Hades Down 0-1-0 | 32oz
In stock
$15.26 $21.99 -31%
Nectar for The Gods Zeus Juice Growth Enhancer | 32oz
In stock
$15.26 $21.99 -31%
FoxFarm Bush Doctor Manganese Micro-Nutrient 1-0-0 | 16oz - OMRI Listed - (Case of 12)
Out of stock
$15.24 $28.49 -47%
FoxFarm Bush Doctor Liquid Iron Micro-Nutrient 1-0-0 | 16oz - OMRI Listed - (Case of 12)
In stock
$15.24 $28.49 -47%
Nectar for The Gods One Shot 3-10-0 | 4lb - (Case of 10)
Out of stock
$15.24 $24.99 -39%
Grotek Blossom Blaster Pro Liquid, 1 L
In stock
$15.20 $29.18 -48%
MICROBE Life Hydroponics Nourish-L Liquid Fertilizer | 16oz - (Case of 12)
In stock
$15.19 $29.99 -49%
Neptune's Harvest Seaweed Plant Food 0-0-1 | 32oz - Concentrate - Makes 32gal - OMRI Listed - (Case of 12)
In stock
$15.16 $20.99 -28%
Mad Farmer Mother Of All Bloom, 250g
In stock
$15.11 $32.12 -53%
General Organics CaMg+ Calcium Magnesium Supplement - 32oz
In stock
$15.05 $24.49 -39%
Grotek Blossom Blaster 1-4-0 | 15/box - 20g
In stock
$14.99
FoxFarm Cultivation Nation Micro Fertilizer 5-0-1 | 32oz - Step 2 for 3-Part Feeding Programs
In stock
$14.96 $24.99 -40%
Miracle-Gro Performance Organics Edibles | 2.5lb Jug - OMRI Listed - (Case of 6)
In stock
$14.90 $23.19 -36%
Xtreme Gardening Calcar Foliar Booster | 3oz - (Case of 12)
Out of stock
$14.90 $19.64 -24%
Botanicare Cal-Mag Plus 2-0-0 | 32oz
In stock
$14.89 $24.13 -38%
Mad Farmer Cal+Mag, 1 qt
In stock
$14.86 $21.62 -31%
HDI Ionic PK BOOST Plant Nutrient 0-5-6 | 1gal - (Case of 4)
In stock
$14.85 $46.24 -68%
Soul Sensei Micro, 1 qt
In stock
$14.84 $19.79 -25%
Bushdoctor Kangaroots 1 pt
Out of stock
$14.84 $20.24 -27%
FoxFarm Grow Big Hydro Liquid Concentate, 1 pt
In stock
$14.72 $19.66 -25%
General Organics BioThrive Bloom 2-4-4 | 32oz
In stock
$14.64 $23.63 -38%
Olivia's Cloning Gel | 4oz - (Case of 24)
In stock
$14.62 $22.95 -36%
Gaia Mania, 1 qt
In stock
$14.58 $19.49 -25%
Roots Organics Uprising Bloom, 3 lbs
In stock
$14.58 $19.43 -25%
Down to Earth Solution Grade Langbeinite 0-0-22 | 5lb - OMRI Listed - (Case of 5)
In stock
$14.54 $24.49 -41%
Down to Earth Solution Grade Potassium Sulfate 0-0-50 | 5lb - OMRI Listed - (Case of 5)
In stock
$14.54 $24.49 -41%
Plant Success Organics Granular 3-1-2 | 1lb - Granules - (Case of 12)
In stock
$14.42 $19.95 -28%
Save 10%
Cutting Edge Solutions Grow, 1 qt
In stock
$14.41 $15.99 -10%
Save 10%
Gaia Green Worm Castings, 2 L U.S. (NA02) Pouch
In stock
$14.40 $15.99 -10%
Emerald Harvest Cal-Mag | 32oz
In stock
$14.38 $23.00 -37%
Neptune's Harvest Fish Fertilizer 2-4-1 | 36oz - Concentrate - OMRI Listed - (Case of 12)
In stock
$14.36 $22.39 -36%
Roots Organics HP2 | 32oz
In stock
$14.28 $17.99 -21%
Coast of Maine Quoddy Blend Organic Lobster Compost | 1cu ft - OMRI Listed - (Case of 5)
In stock
$14.26 $23.99 -41%
Botanicare Silica Blast 0-0-0.5 - 32oz
In stock
$14.22 $23.13 -39%
Demeter's Destiny, 1 qt
In stock
$14.18 $22.99 -38%
Hades Down, 1 qt
In stock
$14.18 $22.99 -38%
Zeus Juice, 1 qt
In stock
$14.18 $22.99 -38%
Roots Organics HP2 0-4-0, 1 qt
In stock
$14.18 $22.67 -37%
Down to Earth Liquid All-Purpose 4-1-3 | 32oz - (Case of 10)
In stock
$14.09 $22.99 -39%
Down to Earth Agmino Powder 14-0-0 | 1lb - (Case of 6)
In stock
$14.00 $25.69 -46%
Down to Earth Fish Bone Powder 4-20-0 | 1lb - (Case of 6)
In stock
$13.99
Save 17%
Mother Earth Power Flower Fantastic Flowering Mix 1-8-6 - 2.4lb
In stock
$13.94 $16.88 -17%
Save 17%
Mother Earth Farmer's Market All Purpose Mix 4-5-4 - 4.4lb
In stock
$13.94 $16.88 -17%
Save 17%
Mother Earth Season's Choice Tomato & Vegetable Mix 4-5-6 - 4.4lb
In stock
$13.94 $16.88 -17%
Save 17%
Mother Earth Acid Drop for Acid -Loving Plants 3-4-6 - 4.4lb
In stock
$13.94 $16.88 -17%
House & Garden Aqua Flakes A, 1 L
In stock
$13.92 $20.24 -31%
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