0Cart

Nutrients & Supplements

Soil Amendments
Sort by:
Price: High to Low
Show:
128
General Hydroponics MaxiGro 10-5-14 - 2.2lb
In stock
$14.60 $21.51 -32%
Coast of Maine Quoddy Blend Organic Lobster Compost | 1cu ft - OMRI Listed
In stock
$14.57 $23.99 -39%
Plant Success Orca | 16oz
Out of stock
$14.56 $37.04 -61%
Down to Earth Blood Meal 12-0-0 | 4lb - OMRI Listed
In stock
$14.39 $23.49 -39%
General Hydroponics FloraMicro 5-0-1 - 32oz
In stock
$14.37 $21.13 -32%
House & Garden Multi Zen, 250 ml
In stock
$14.35 $18.89 -24%
Nectar for The Gods Gaia Mania Supplement 1-5-1 | 32oz
In stock
$14.32 $17.99 -20%
Nectar for The Gods Persephone's Palate | 32oz
In stock
$14.32 $17.99 -20%
Save 18%
Athena's Aminas, 1 qt
Out of stock
$14.31 $17.49 -18%
Save 18%
Hygeia's Hydration, 1 qt
Out of stock
$14.31 $17.49 -18%
Save 18%
Medusa's Magic, 1 qt
In stock
$14.31 $17.49 -18%
Save 18%
Mega Morpheus, 1 qt
In stock
$14.31 $17.49 -18%
Save 18%
Pegasus Potion, 1 qt
In stock
$14.31 $17.49 -18%
Save 18%
The Kraken, 1 qt
In stock
$14.31 $17.49 -18%
FoxFarm Cultivation Nation Grow 2-1-6 | 32oz - Step 1 for 3-Part Feeding Programs
In stock
$14.28 $18.99 -25%
FoxFarm Cultivation Nation Bloom 0-5-4 | 32oz - Step 3 for 3-Part Feeding Programs
In stock
$14.28 $18.99 -25%
HDI Europonic FossilFuel Liquid Humic Acids | 32oz
In stock
$14.28 $21.99 -35%
Save 8%
SUPERthrive, 4 oz
In stock
$14.22 $15.49 -8%
Save 17%
Emerald Harvest Cali Pro Bloom A, 1 qt
In stock
$14.08 $17.00 -17%
Save 17%
Emerald Harvest Cali Pro Bloom B, 1 qt
In stock
$14.08 $17.00 -17%
Save 17%
Emerald Harvest Cali Pro Grow A, 1 qt
In stock
$14.08 $17.00 -17%
Save 17%
Emerald Harvest Cali Pro Grow B, 1 qt
In stock
$14.08 $17.00 -17%
Save 16%
Dr. Earth Natural Choice Organic All-Purpose Compost | 1.5cu ft Poly Bag
Out of stock
$14.05 $16.64 -16%
Down to Earth Fish Bone Powder 4-20-0 | 1lb
In stock
$13.99
SUPERthrive Pure Neem Oil Organic Leaf Polish | 8oz
In stock
$13.94 $20.36 -32%
Down to Earth Bio-Live 5-4-2 | 5lb - OMRI Listed
In stock
$13.83 $19.49 -29%
Mother Earth Floressence Bloom Supplement 1-1-1 - 16oz
In stock
$13.68 $20.02 -32%
FoxFarm Cultivation Nation™ Micro, 1 pt
In stock
$13.68 $17.50 -22%
Save 15%
Roots Organics Uprising Bloom | 3lb
In stock
$13.59 $15.99 -15%
Save 15%
Roots Organics Uprising Foundation | 3lb
In stock
$13.59 $15.99 -15%
Save 15%
Roots Organics Uprising Grow | 3lb
In stock
$13.59 $15.99 -15%
FoxFarm Cultivation Nation Cal-Mag | 32oz - Concentrate
In stock
$13.59 $19.99 -32%
FoxFarm Tiger Bloom Buds & Blooms Fertilizer 2-8-4 | 16oz - Concentrate
In stock
$13.59 $16.99 -20%
Save 17%
FoxFarm Big Bloom Liquid Concentrate, 1 pt
In stock
$13.58 $16.40 -17%
Down to Earth Alfalfa Meal 2.5-0.5-2.5 | 4lb - OMRI Listed
In stock
$13.49
Save 11%
Grotek Final Flush Blueberry, 1 L
In stock
$13.47 $15.19 -11%
Save 13%
HYCLEAN Line & Equipment Cleaner for Irrigation Systems | 500mL(16.9oz) - Non-Toxic
In stock
$13.43 $15.36 -13%
Save 19%
Olympus Up, 1 qt
In stock
$13.41 $16.49 -19%
Nectar for the Gods Persephone's Palate, 1 qt
In stock
$13.41 $19.49 -31%
Save 11%
Gaia Green Super Fly, 750 g Pouch
In stock
$13.34 $14.99 -11%
FoxFarm Happy Frog® All-Purpose Fertilizer, 4 lb bag
In stock
$13.22 $17.42 -24%
FoxFarm Happy Frog® Fruit & Flower Fertilizer, 4 lb bag
In stock
$13.22 $17.42 -24%
FoxFarm Happy Frog® Japanese Maple Fertilizer, 4 lb bag
In stock
$13.22 $17.42 -24%
FoxFarm Bush Doctor® Cal-Mag, 1 pt
In stock
$13.08 $17.38 -25%
Save 18%
Dr. Earth Premium Organic Fish Bone Meal 3-18-0 | 2.5lb - Poly Bag
In stock
$13.05 $15.89 -18%
Down to Earth Vegan Mix 3-2-2 | 5lb - OMRI Listed
Out of stock
$12.96 $17.29 -25%
Grotek Micro Power 0-0-2 | 500mL
In stock
$12.94 $20.62 -37%
Growth Science Nutrients Rock Solid, 1 qt
In stock
$12.94 $24.99 -48%
True Organic All-Purpose Plant Food 5-4-5 | 8lb - Resealable Bag - Covers up to 174sq ft - OMRI Listed
In stock
$12.92 $16.99 -24%
True Organic Tomato & Vegetable Food 4-5-6 | 8lb - Resealable Bag - Use Monthly - Covers up to 140sq ft - OMRI Listed
In stock
$12.92 $16.99 -24%
Save 8%
Gaia Green Basalt Rock Dust, 2 kg U.S. (NA02) Pouch
Out of stock
$12.92 $13.99 -8%
Botanicare Pure Blend Tea 0.5-0.5-1 - 32oz
In stock
$12.85 $18.85 -32%
Save 14%
Great White Premium Mycorrhizae, 1 oz
In stock
$12.81 $14.93 -14%
Down to Earth Starter Mix 3-3-3 | 5lb - OMRI Listed
Out of stock
$12.78 $16.49 -22%
Save 14%
SUPERthrive Vitamin Solution 0.5-0-0 | 4oz
In stock
$12.78 $14.89 -14%
HDI Ionic Bloom for Soil Premium Plant Nutrient 2-2-5 | 32oz
In stock
$12.75 $21.34 -40%
House & Garden Rhizo Force, 500 gm
In stock
$12.75 $16.79 -24%
Save 17%
Soul Sensei Bloom, 1 qt
In stock
$12.74 $15.39 -17%
Save 15%
Roots Organics NitroBat Guano | 3lb
In stock
$12.73 $14.99 -15%
Key Grow Solutions Red Royal 2-0-7 | 32oz
In stock
$12.67 $29.99 -58%
Key Grow Solutions White Royal 4-10-5 | 32oz
In stock
$12.67 $27.99 -55%
Save 11%
SUPERthrive Vitamin Solution 4-1-1 Plant Food | 32oz - Concentrate
In stock
$12.65 $14.29 -11%
Grotek Heavy Bud Pro 1-0-3 | 500mL
In stock
$12.64 $20.99 -40%
True Organic All-Purpose Plant Food 5-4-5 | 4.5lb - Shaker Jug - Covers up to 100sq ft - OMRI Listed
In stock
$12.63 $15.99 -21%
True Organic Tomato & Vegetable Food 4-5-6 | 4.5lb - Shaker Jug - Use Monthly - Covers up to 88sq ft - OMRI Listed
In stock
$12.63 $15.99 -21%
Nectar for The Gods Athena's Aminas 0.5-0-0 | 32oz
In stock
$12.61 $15.99 -21%
Nectar for The Gods Hygeia Hydration Yucca Extract | 32oz
Out of stock
$12.61 $15.99 -21%
Nectar for The Gods Medusa's Magic Soil Nutrient 2-5-2 | 32oz
In stock
$12.61 $15.99 -21%
Nectar for The Gods Mega Morpheus Guano Tea 0-2-0 | 32oz
In stock
$12.61 $15.99 -21%
Nectar for The Gods Pegasus Potion Feather Tea 1-2-0 | 32oz
In stock
$12.61 $15.99 -21%
Nectar for The Gods The Kraken Crab & Shrimp 0-4-0 | 32oz
In stock
$12.61 $15.99 -21%
FoxFarm Happy Frog® Tomato & Vegetable Fertilizer, 4 lb bag
In stock
$12.56 $16.70 -25%
MYKE Vegetable & Herb Growth Enhancer | 0.9qt - OMRI Listed
In stock
$12.52 $17.99 -30%
Grotek Pro-Silicate 0-0-4 | 1L
Out of stock
$12.50 $16.49 -24%
Down to Earth Feather Meal 12-0-0 | 4lb - OMRI Listed
In stock
$12.46 $19.99 -38%
Save 11%
Grotek Final Flush, 1 L
In stock
$12.46 $14.06 -11%
Emerald Harvest Micro | 32oz
In stock
$12.42 $18.00 -31%
Save 11%
Grotek Monster Bloom, 130 g
In stock
$12.41 $13.99 -11%
Grotek Solo-Tek Bloom 3-8-8 | 500mL
In stock
$12.30 $16.29 -24%
Big Foot Root Boost Nitrogen-Fixing Azospirillum | 5oz - Great for Fruits, Veggies, Flowers, Shrubs, Turf and Farm
In stock
$12.21 $15.99 -24%
Botanicare Clearex Rinsing Solution - 32ozl
In stock
$12.20 $17.86 -32%
MICROBE Life Hydroponics Vitamins & Amino Acids | 16oz
In stock
$12.14 $21.99 -45%
Grotek Vital, 1 L
In stock
$12.14 $42.41 -71%
Wiggle Worm Soil Builder Pure Worm Castings Organic Fertilizer | 15lb - OMRI Listed
In stock
$12.13 $18.89 -36%
Grotek Bud Fuel Pro 1-3-4 | 500mL
In stock
$12.12 $22.29 -46%
Neptune's Harvest Seaweed Plant Food 0-0-1 | 16oz - Concentrate - Makes 16gal - OMRI Listed
In stock
$12.09 $16.99 -29%
Down to Earth Bone Meal 3-15-0 | 5lb - OMRI Listed
In stock
$12.03 $18.99 -37%
Neptune's Harvest Fish & Seaweed Fertilizer 2-3-1 | 18oz - Concentrate - OMRI Listed
In stock
$12.03 $16.99 -29%
Save 8%
Gaia Green Glacial Rock Dust, 2 kg Pouch
Out of stock
$11.98 $12.99 -8%
Save 11%
Grotek Insta-Green, 1 L
In stock
$11.96 $13.48 -11%
Plant Success Great White Premium Mycorrhizae | 1oz
In stock
$11.94 $14.93 -20%
FoxFarm Cultivation Nation Micro Fertilizer 5-0-1 | 16oz - Step 2 for 3-Part Feeding Programs
In stock
$11.90 $15.59 -24%
Save 11%
Black Gold Earthworm Castings Blend | 8q t- OMRI Listed
In stock
$11.89 $13.39 -11%
Soul Sensei Grow, 1 qt
In stock
$11.87 $15.39 -23%
Nectar for The Gods Olympus Up | 32oz
In stock
$11.79 $14.99 -21%
Emerald Harvest Cali Pro Grow A 3-0-0 | 32oz
In stock
$11.73 $17.00 -31%
Emerald Harvest Cali Pro Grow B 2-2-5 | 32oz
In stock
$11.73 $17.00 -31%
Emerald Harvest Cali Pro Bloom A 3-0-3 | 32oz
In stock
$11.73 $17.00 -31%
Emerald Harvest Cali Pro Bloom B 1-4-6 | 32oz
In stock
$11.73 $17.00 -31%
Down to Earth Garden Gypsum | 5lb - OMRI Listed
In stock
$11.69
Down to Earth Bio-Fish 7-7-2 | 5lb - OMRI Listed
In stock
$11.67 $16.49 -29%
Herculean Harvest, 1 qt
In stock
$11.62 $14.49 -20%
FoxFarm Cultivation Nation® pH UP, 1 pt, case of 12
In stock
$11.61 $14.96 -22%
Save 17%
Emerald Harvest Bloom, 1 qt
In stock
$11.59 $14.00 -17%
Save 17%
Emerald Harvest Grow, 1 qt
In stock
$11.59 $14.00 -17%
Save 19%
FoxFarm Happy Frog Tomato & Vegetable Fertilizer 5-7-3 | 4lb - OMRI Listed
In stock
$11.52 $14.19 -19%
Save 19%
FoxFarm Happy Frog Fruit & Flower 4-9-3 | 4lb - OMRI Listed
In stock
$11.52 $14.19 -19%
Save 19%
FoxFarm Happy Frog All-Purpose Fertilizer 6-4-5 | 4lb - OMRI Listed
In stock
$11.52 $14.19 -19%
Save 19%
FoxFarm Happy Frog Japanese Maple Fertilizer 4-3-4 | 4lb - OMRI Listed
In stock
$11.52 $14.19 -19%
Save 19%
FoxFarm Happy Frog Jump Start Fertilizer 3-4-3 | 4lb - OMRI Listed
In stock
$11.52 $14.19 -19%
Save 19%
FoxFarm Happy Frog Citrus & Avocado Fertilizer 7-3-3 | 4lb - OMRI Listed
In stock
$11.52 $14.19 -19%
Save 19%
FoxFarm Happy Frog Acid Loving Plants Fertilizer 4-5-3 | 4lb - OMRI Listed
In stock
$11.52 $14.19 -19%
Save 19%
FoxFarm Happy Frog Bone Meal 3-12-0 | 4lb - OMRI Listed
In stock
$11.52 $14.19 -19%
Down to Earth Fruit Tree 6-2-4 | 5lb - OMRI Listed
In stock
$11.51 $15.99 -28%
Save 18%
True Organic Seabird Guano 6-12-0 | 4lb - Use Twice A Year - Spring & Fall Application - Covers up to 70sq ft - OMRI Listed
In stock
$11.51 $13.99 -18%
Save 8%
Coco-Wet Organic Wetting Agent, 8 oz
In stock
$11.51 $12.49 -8%
House & Garden Hydro B, 10 L
In stock
$11.50 $75.99 -85%
DaKine 420 Atomic Root Powder | 100g
In stock
$11.45 $21.49 -47%
DaKine 420 Shock & Awe Bloom Booster | 200g
In stock
$11.45 $21.49 -47%
Down to Earth Rose & Flower Mix 4-8-4 | 5lb - OMRI Listed
In stock
$11.45 $15.99 -28%
Down to Earth Citrus Mix 6-3-3 | 5lb - OMRI Listed
In stock
$11.45 $16.29 -30%
Save 14%
Miracle-Gro Performance Organics All Purpose Plant Nutrition | 1lb - Bag - Powder - OMRI Listed
In stock
$11.42 $13.29 -14%
Suståne 8-2-4 Lawn & Landscape Plant Food | 5lb - OMRI Listed
In stock
$11.40 $15.60 -27%
Save 18%
FoxFarm Big Bloom Fertilizer 0-0.5-0.7 | 16oz - Concentrate - OMRI Listed
In stock
$11.37 $13.79 -18%
FoxFarm Bush Doctor 1-0-0 Cal-Mag Supplement | 16oz - 3% Calcium - 0.9% Magnesium - OMRI Listed
In stock
$11.30 $14.49 -22%
Down to Earth Bat Guano 7-3-1 | 2lb - OMRI Listed
In stock
$11.29 $17.29 -35%
Save 18%
Neptune's Harvest Fish Fertilizer 2-4-1 | 18oz - Concentrate - OMRI Listed
In stock
$11.29 $13.79 -18%
General Hydroponics FloraBloom 0-5-4 - 32oz
In stock
$11.27 $16.63 -32%
Show another 128 products
Product filters
Free Shipping
In Stock
Nutrient Material
Price
$
–
$
  • $0
  • $43092
Shop Owner
Brand
    Show all (93)