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Nutrients & Supplements

Soil Amendments
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128
Roots Organics CalMag, 1 qt
In stock
$21.96 $28.90 -24%
Save 16%
Dyna-Gro Bloom, 1 qt
In stock
$21.93 $25.99 -16%
Save 16%
Dyna-Gro Foliage-Pro, 1 qt
In stock
$21.93 $25.99 -16%
Down to Earth Kelp Meal 1-0.1-2 | 4lb - OMRI Listed
In stock
$21.85 $30.99 -29%
Save 18%
HDI Clonex Clone Solution | 32oz
In stock
$21.85 $26.68 -18%
Technaflora B.C. Boost, 1 L
In stock
$21.82 $28.21 -23%
Roots Organics Elemental, 3 lbs
In stock
$21.74 $28.61 -24%
Save 13%
Dyna-Gro Grow, 1 qt
In stock
$21.72 $24.99 -13%
HEAVY 16 Finish, 32 oz
In stock
$21.72 $31.49 -31%
Save 6%
Coast of Maine Kelp Meal Organic Plant Food 1-0-1, 4 lbs
In stock
$21.62 $22.99 -6%
Save 17%
Cutting Edge Solutions Bulletproof Si, 1 qt
In stock
$21.61 $25.99 -17%
Save 16%
Xtreme Gardening Mykos WP | 12oz - Wettable Powder
Out of stock
$21.58 $25.75 -16%
Save 18%
HDI Clonex Mist Root Promoter | 300mL
In stock
$21.56 $26.32 -18%
Save 8%
Royal Gold Crown Jewels Bloom 1-4-2, 5 lb
Out of stock
$21.49 $23.39 -8%
Save 8%
Royal Gold Crown Jewels Grow 3-2-2, 5 lb
Out of stock
$21.49 $23.39 -8%
Aptus MINERAL-CALMAG, 1 L
In stock
$21.43 $29.00 -26%
Save 13%
HYGROZYME Horticultural Horticulture Enzyme Formula | 500mL (16.9oz)
In stock
$21.37 $24.43 -13%
Coast of Maine Stonington Blend Organic Plant Food, 4 lb
In stock
$21.33 $26.99 -21%
Save 15%
Cutting Edge Solutions Sugaree, 1 qt
In stock
$21.23 $24.99 -15%
General Hydroponics FloraKleen - 1gal
In stock
$21.21 $30.99 -32%
Botanicare Pure Blend Pro Bloom Formula 2-3-5 - 32oz
In stock
$21.21 $30.99 -32%
Save 16%
Xtreme Gardening Mykos Root Paks | 50ct
In stock
$21.18 $25.28 -16%
Mad Farmer Be One, 1 qt
In stock
$21.11 $31.49 -33%
Big Foot Root Boost Nitrogen-Fixing Azospirillum | 10oz - Great for Fruits, Veggies, Flowers, Shrubs, Turf and Farm
In stock
$20.98 $27.49 -24%
Wiggle Worm Soil Builder Pure Worm Castings Organic Fertilizer | 30lb - OMRI Listed
In stock
$20.96 $32.59 -36%
Save 16%
Dyna-Gro Pro-TeKt, 1 qt
In stock
$20.93 $24.99 -16%
Remo Nature's Candy, 1 L
In stock
$20.88 $26.99 -23%
FoxFarm Bush Doctor 1-0-0 Cal-Mag Supplement | 32oz - 3% Calcium - 0.9% Magnesium - OMRI Listed
In stock
$20.84 $26.99 -23%
Grow More Mendocino Avalanche, 1 qt
In stock
$20.82 $27.43 -24%
Botanicare Pure Blend Pro Soil 1-4-5 - 32oz
In stock
$20.81 $30.37 -31%
Botanicare Pure Blend Pro Grow Formula 3-2-4 - 32oz
In stock
$20.81 $30.37 -31%
Grotek Bud Fuel Pro 1-3-4 | 1L
In stock
$20.80 $37.99 -45%
DaKine 420 Atomic Root Powder | 250g
In stock
$20.77 $38.99 -47%
DaKine 420 Shock & Awe Bloom Booster | 500g
In stock
$20.77 $38.99 -47%
House & Garden Multi Zen, 500 ml
In stock
$20.73 $27.29 -24%
Growth Science Organics Abundant-Sea, 1 qt
In stock
$20.70 $39.99 -48%
General Hydroponics Liquid KoolBloom 0-10-10 - 32oz
In stock
$20.69 $30.18 -31%
Save 17%
Roots Organics Ancient Amber, 1 qt
In stock
$20.64 $24.93 -17%
Save 17%
Roots Organics Buddha Bloom, 1 qt
In stock
$20.64 $24.93 -17%
Save 17%
Roots Organics Buddha Grow, 1 qt
In stock
$20.64 $24.93 -17%
Save 17%
Roots Organics HPK 0-4-3, 1 qt
In stock
$20.64 $24.93 -17%
FoxFarm Bush Doctor® Cal-Mag, 1 qt
In stock
$20.51 $27.56 -26%
Biobizz Bio-Bloom, 1 L
In stock
$20.48 $26.99 -24%
Biobizz Bio-Grow, 1 L
In stock
$20.48 $26.99 -24%
Save 18%
HDI Clonex Rooting Gel | 100mL- Wide Mouth Bottle
In stock
$20.40 $24.90 -18%
Save 15%
Cutting Edge Solutions Cal-Mag Amplified, 1 qt
In stock
$20.40 $23.99 -15%
MICROBE Life Hydroponics Nourish-L Liquid Fertilizer | 32oz
In stock
$20.34 $46.99 -57%
FoxFarm Cha Ching, 6 oz
In stock
$20.29 $27.06 -25%
FoxFarm Open Sesame, 6 oz
In stock
$20.29 $27.02 -25%
General Hydroponics ARMOR SI 0-0-4 - 32oz - CA Restriction
In stock
$20.27 $29.80 -32%
General Hydroponics ARMOR SI 0-0-4 | 32oz
In stock
$20.27 $29.80 -32%
FoxFarm Beastie Bloomz, 6 oz
In stock
$20.26 $27.06 -25%
Save 16%
Roots Organics Elemental | 3lb
In stock
$20.24 $23.99 -16%
FoxFarm Marine Cuisine Dry Fertilizer, 4 lbs
In stock
$20.24 $25.78 -21%
Technaflora Pura Vida Grow, 1 L
In stock
$20.23 $38.42 -47%
Roots Organics Surge, 1 qt
In stock
$20.18 $26.06 -23%
FOOP 2-in-1 Clone Gel | 4oz - Rooting Gel + Cloning Gel in One
Out of stock
$19.99
House & Garden Bud-XL, 250 ml
In stock
$19.93 $26.24 -24%
Save 5%
Coast of Maine Fish Bone Meal Organic Plant Food 5-13-0, 3 lbs
In stock
$19.92 $20.99 -5%
Save 5%
Coast of Maine Lobster Meal Organic Plant Food 6-2-0, 4 lbs
In stock
$19.92 $20.99 -5%
FoxFarm Open Sesame Soluble Fertilizer 5-45-19 | 6oz Jar
In stock
$19.91 $24.99 -20%
FoxFarm Big Bloom Liquid Concentrate, 1 qt
In stock
$19.91 $25.30 -21%
Aphrodite's Extraction, 1 qt
In stock
$19.68 $25.99 -24%
Poseidonzime, 1 qt
In stock
$19.68 $25.99 -24%
Optic Foliar ATAK CONCENTRATE, 1 L
In stock
$19.68 $42.99 -54%
Optic Foliar WATTS, 250 ml
In stock
$19.68 $40.99 -52%
Save 18%
FoxFarm Cha-Ching Soluble Fertilizer 9-50-10 | 6oz Jar
In stock
$19.66 $23.99 -18%
BioAg Ful-Power®, 1 qt
In stock
$19.54 $25.99 -25%
BioAg Ful-Power®, 1 qt (ID,IL,IA,KS,MN,NE,OH,OK,OR)
In stock
$19.54 $25.99 -25%
Save 19%
FoxFarm Beastie Bloomz Fertilizer 0-50-30 | 6oz
In stock
$19.50 $23.99 -19%
House & Garden Drip Clean, 250 ml
In stock
$19.50 $25.70 -24%
Down to Earth Starter Mix 3-3-3 | 25lb - OMRI Listed
In stock
$19.47 $51.79 -62%
Grotek Heavy Bud Pro 1-0-3 | 1L
In stock
$19.46 $35.59 -45%
Optic Foliar ATAK CONCENTRATE, 4 L
In stock
$19.43 $94.99 -80%
Save 12%
Roots Organics CalMag | 32oz
In stock
$19.38 $21.99 -12%
Down to Earth Soluble Root Growth Enhancer | 1lb - OMRI Listed
In stock
$19.38 $59.99 -68%
General Hydroponics FloraNectar FruitnFusion 0-0-1 - 32oz
In stock
$19.31 $28.33 -32%
Save 12%
Miracle-Gro Performance Organics All Purpose Granules 9-2-7 | 2.5lb - Granules - OMRI Listed
In stock
$19.30 $21.89 -12%
Xtreme Mykos Pure Mycorrhizal Inoculum, Granular, 1 lb
In stock
$19.22 $24.99 -23%
FoxFarm Big Bloom Fertilizer 0-0.5-0.7 | 32oz - Concentrate - OMRI Listed
In stock
$19.20 $23.99 -20%
FOOP Mist Organic Foliar Spray | 32oz - Ready-to-Use - OMRI Listed
Out of stock
$19.15 $24.99 -23%
FoxFarm Marine Cuisine Slow-Release Fertilizer 10-7-7 | 4lb - Bag
In stock
$19.09 $23.99 -20%
Optic Foliar OVERGROW, 1 L RTU
In stock
$19.09 $24.99 -24%
FoxFarm Cultivation Nation pH Up Nutrient Solution Adjuster | 32oz - Raises the pH in Nutrient Solution
In stock
$19.03 $24.99 -24%
FoxFarm Cultivation Nation pH Down Nutrient Solution Adjuster | 32oz - Lowers the pH in Nutrient Solution
In stock
$19.03 $24.99 -24%
CYCO Platinum Series Dr. Repair 3-0-0 - 1L
In stock
$19.00 $27.36 -31%
Nutri-Cycle Primer
In stock
$19.00 $29.00 -34%
Nutri-Cycle Booster
In stock
$19.00 $29.00 -34%
Nutri-Cycle Bloomer
In stock
$19.00 $29.00 -34%
Nutri-Cycle Promoter
In stock
$19.00 $29.00 -34%
FoxFarm Cultivation Nation™ Micro, 1 qt
Out of stock
$18.96 $23.98 -21%
MICROBE Life Hydroponics Vitamins & Amino Acids | 32oz
In stock
$18.93 $33.99 -44%
Xtreme Azos Beneficial Bacteria, 2 oz
In stock
$18.93 $24.99 -24%
Royal Gold Imperial Boost 0-15-11 | 5lb
In stock
$18.85 $24.99 -25%
Suståne 4-6-4 Flower & Vegetable Plant Food | 20lb - OMRI Listed
In stock
$18.82 $25.76 -27%
Mother Earth LiquiCraft Grow 4-3-3 - 32oz
In stock
$18.81 $27.53 -32%
Mother Earth LiquiCraft Bloom 2-4-4 - 32oz
In stock
$18.81 $27.53 -32%
Save 18%
Demeter's Destiny, 1 qt
In stock
$18.78 $22.99 -18%
Save 18%
Hades Down, 1 qt
In stock
$18.78 $22.99 -18%
Save 18%
Zeus Juice, 1 qt
In stock
$18.78 $22.99 -18%
Save 17%
Roots Organics HP2 0-4-0, 1 qt
In stock
$18.78 $22.67 -17%
Neptune's Harvest Fish & Seaweed Fertilizer 2-3-1 | 36oz - Concentrate - OMRI Listed
In stock
$18.74 $23.29 -20%
Down to Earth Soluble Root Zone | 4oz - OMRI Listed
Out of stock
$18.71 $25.99 -28%
Down to Earth Kelp Meal 1-0.1-2 | 5lb - OMRI Listed
Out of stock
$18.67 $37.49 -50%
Save 15%
Grotek Precision Grow, 4 L
In stock
$18.67 $21.99 -15%
Save 15%
Grotek Precision Bloom, 4 L
In stock
$18.67 $21.99 -15%
Royal Gold Crown Jewels Bloom 1-4-2 | 5lb
In stock
$18.62 $24.99 -25%
Royal Gold Crown Jewels Grow 3-2-2 | 5lb
In stock
$18.62 $24.99 -25%
Save 19%
Remo Micro, 1 L
In stock
$18.60 $22.99 -19%
Save 19%
Remo Magnifical, 1 L
In stock
$18.60 $22.99 -19%
SUPERthrive Bloom Plant Nutrients 3-12-6 | 32oz
In stock
$18.57 $28.55 -35%
SUPERthrive Foliage-Pro Liquid Plant Food 9-3-6 | 32oz
In stock
$18.57 $28.55 -35%
SUPERthrive Grow Liquid Plant Food 7-9-5 | 32oz
In stock
$18.57 $28.55 -35%
Maxicrop Soluble Seaweed Powder 0-0-17 | 10.7oz - OMRI Listed
In stock
$18.53 $24.99 -26%
Nectar for The Gods Aphrodite's Extraction Carbon 0-1-0 | 32oz
In stock
$18.53 $23.99 -23%
Nectar for The Gods Poseidonzime Foliar Spray 0-0-0.5 | 32oz
In stock
$18.53 $23.99 -23%
Save 12%
Coop Poop All-Purpose Garden Food by Healthy Grow | 25lb - OMRI Listed
In stock
$18.46 $20.99 -12%
Save 12%
Green Gro Ultrafine Mycorrhizae All-in-One, 4 oz
In stock
$18.42 $20.99 -12%
MICROBE Life Hydroponics Foliar Spray & Root Dip | 32oz
In stock
$18.37 $41.99 -56%
True Organic Tomato & Vegetable Food 4-5-6 | 12lb - Resealable Bag - Covers up to 210sq ft - Use Monthly - OMRI Listed
In stock
$18.33 $23.99 -24%
Save 18%
Rhizoflora Terpinator 0-0-4 - 32oz
In stock
$18.28 $22.27 -18%
FoxFarm Cultivation Nation Micro Fertilizer 5-0-1 | 32oz - Step 2 for 3-Part Feeding Programs
In stock
$18.26 $24.99 -27%
Down to Earth Oyster Shell | 25lb - OMRI Listed
Out of stock
$18.22 $25.99 -30%
SUPERthrive Mag-Pro Nutritional Supplement 2-15-4 | 32oz
In stock
$18.22 $27.54 -34%
SUPERthrive Root-Gel Rooting Gel | 4oz
In stock
$18.22 $27.99 -35%
Down to Earth Seabird Guano 0-11-0 | 5lb - OMRI Listed
In stock
$18.19 $29.79 -39%
Save 17%
FoxFarm Bush Doctor Microbe Brew, 1 pt
In stock
$18.13 $21.91 -17%
FoxFarm Happy Frog Soil Conditioner | 3cu ft - West Only | (35/PL)
In stock
$18.08 $22.99 -21%
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