0Cart

Nutrients & Supplements

Soil Amendments
Sort by:
Price: High to Low
Show:
128
SUPERthrive Pro-TeKt Nutritional Supplement 0-0-3 | 1gal - The Silicon Solution - (Case of 4)
In Stock: 20
$45.01 $67.63 -33%
FoxFarm Open Sesame Soluble Fertilizer 5-45-19 | 1lb Jar
In Stock: 119
$44.89 $52.99 -15%
FoxFarm Beastie Bloomz Fertilizer 0-50-30 | 1lb
In Stock: 153
$44.89 $52.99 -15%
Roots Organics HP2 0-4-0, 1 gal
In Stock: 281
$44.88 $68.03 -34%
Gaia Green Power Bloom, 10 kg
In Stock: 670
$44.85 $57.19 -22%
Cutting Edge Solutions Cal-Mag Amplified, 1 gal
In Stock: 29
$44.84 $61.99 -28%
Down to Earth Bio-Fish 7-7-2 | 25lb - OMRI Listed
In Stock: 111
$44.68 $61.79 -28%
Grotek Cal Max 2-0-0 | 10L - (Case of 2)
In Stock: 4
$44.66 $134.99 -67%
Down to Earth All-Purpose Mix 4-6-2 | 50lb - OMRI Listed
In Stock: 93
$44.47 $82.99 -46%
Down to Earth Acid Mix 4-3-6 | 50lb - For Acid Soil Loving Plants
In Stock: 44
$44.47 $88.99 -50%
Down To Earth Vegetable Garden 4-4-4 | 50lb - OMRI Listed
In Stock: 73
$44.47 $84.29 -47%
Gaia Green Worm Castings, 30L
In Stock: 145
$44.31 $55.99 -21%
Grotek Pro-Silicate 0-0-4 | 10L - (Case of 2)
In Stock: 4
$44.27 $133.99 -67%
Nectar for The Gods Gaia Mania Supplement 1-5-1 | 1gal - (Case of 4)
In Stock: 4
$44.19 $53.99 -18%
Nectar for The Gods Persephone's Palate | 1gal - (Case of 4)
In Stock: 4
$44.19 $53.99 -18%
Roots Organics Oregonism XL, 1 lb
In Stock: 116
$44.19 $66.95 -34%
General Hydroponics CALiMAGic 1-0-0 - 1gal
In Stock: 821
$43.92 $67.34 -35%
SUPERthrive, 1 pt
In Stock: 145
$43.81 $50.49 -13%
Grotek Bloom Pack
In Stock: 4
$43.64 $132.39 -67%
Mother Earth LiquiCraft Grow 4-3-3 - 1gal
In Stock: 26
$43.27 $66.22 -35%
Botanicare Cal-Mag Plus 2-0-0 | 1gal
In Stock: 1289
$43.23 $66.05 -35%
Purple Maxx, 1 qt
Out of stock
$43.20 $85.99 -50%
Budswel, 1 gal (CA Only)
In Stock: 690
$43.15 $54.99 -22%
Down to Earth Fish Bone Meal 4-12-0 | 50lb - OMRI Listed
In Stock: 91
$43.14 $79.49 -46%
Neptune's Harvest Fish & Seaweed Fertilizer 2-3-1 | 142oz - Concentrate - OMRI Listed - (Case of 4)
In Stock: 162
$43.08 $56.59 -24%
Xtreme Azos Beneficial Bacteria, 12 oz (340 g)
In Stock: 159
$43.08 $65.99 -35%
Aurora Peat Products Procision Advantage, 3.8 cu ft bale
Out of stock
$43.06 $58.72 -27%
Primordial Solutions PaleoBloom, 5 gal
Out of stock
$42.89 $284.99 -85%
Down to Earth Feather Meal 12-0-0 | 20lb - OMRI Listed
In Stock: 48
$42.79 $69.99 -39%
Age Old Grow, 1 gal
In Stock: 45
$42.69 $48.99 -13%
Age Old Bloom, 1 gal
In Stock: 48
$42.69 $48.99 -13%
Age Old Kelp, 1 gal
In Stock: 27
$42.69 $48.99 -13%
Xtreme Tea Brews Individual Pouches, 80 g & Microbe Food Packs, 7 g (10 each)
In Stock: 102
$42.52 $63.99 -34%
House & Garden Nitrogen Boost, 1 L
In Stock: 369
$42.41 $64.26 -34%
Roots Organics Terp Tea Grow | 9lb - (Case of 3)
In Stock: 9
$42.33 $44.99 -6%
HDI MotherPlant Nutrients Part A | 1gal - (Case of 4)
In Stock: 8
$42.24 $49.07 -14%
Down to Earth Cottonseed Meal 6-2-1 | 50lb - All Purpose
In Stock: 104
$42.17 $84.99 -50%
Down to Earth Citrus Mix 6-3-3 | 25lb - OMRI Listed
In Stock: 95
$41.84 $57.89 -28%
Down to Earth Granular Humic Acids | 50lb - OMRI Listed
In Stock: 259
$41.80 $59.99 -30%
SUPERthrive Vitamin Solution 0.5-0-0 | 16oz
In Stock: 477
$41.58 $45.99 -10%
Nectar for The Gods Poseidonzime Foliar Spray 0-0-0.5 | 1gal
In Stock: 20
$41.49 $69.99 -41%
Down to Earth Agmino Powder 14-0-0 | 5lb - (Case of 5)
In Stock: 5
$41.24 $95.29 -57%
Roots Organics Ancient Amber, 1 gal
In Stock: 61
$41.17 $62.36 -34%
BioBizz Top-Max 1L CA & OR only
In Stock: 48
$41.05 $62.20 -34%
DaKine 420 Sticky Icky Enzymes | 1,000g - (Case of 4)
In Stock: 16
$41.00 $168.99 -76%
Aphrodite's Extraction, 5 gal
Out of stock
$40.99 $248.49 -84%
Gaia Green All Purpose, 10 kg
In Stock: 665
$40.89 $56.10 -27%
Humboldt Nutrients Verde, 2.5 gal
In Stock: 7
$40.52 $244.99 -83%
Down to Earth Crab Meal 4-3-0 | 40lb - OMRI Listed
In Stock: 86
$40.43 $81.99 -51%
Down to Earth Bone Meal 3-15-0 | 25lb - OMRI Listed
In Stock: 32
$40.29 $58.29 -31%
Technaflora Thrive Alive B1 Red, 1 L
In Stock: 145
$40.26 $59.99 -33%
Optic Foliar ATAK Concentrate, 24 L
In Stock: 13
$40.17 $303.99 -87%
Herculean Harvest, 2.5 gal
Out of stock
$40.10 $86.49 -54%
Down to Earth Alfalfa Meal 2.5-0.5-2.5 | 25lb - OMRI Listed
In Stock: 982
$39.99
Roots Organics Terp Tea Bloom | 9lb - (Case of 3)
In Stock: 53
$39.97 $42.99 -7%
Grotek Heavy Bud Pro 1-0-3 | 4L - (Case of 4)
In Stock: 56
$39.94 $120.99 -67%
HDI Ionic Bloom for Soil Premium Plant Nutrient 2-2-5 | 1gal - (Case of 4)
In Stock: 32
$39.85 $46.24 -14%
HDI Ionic Grow for Soil Plant Nutrient 3-1-4 | 1gal - (Case of 4)
In Stock: 20
$39.85 $46.24 -14%
Nectar for The Gods Athena's Aminas 0.5-0-0 | 1gal
Out of stock
$39.73 $48.99 -19%
Nectar for The Gods Hygeia Hydration Yucca Extract | 1gal - (Case of 4)
Out of stock
$39.73 $48.99 -19%
Nectar for The Gods Medusa's Magic Soil Nutrient 2-5-2 | 1gal - (Case of 4)
Out of stock
$39.73 $48.99 -19%
Nectar for The Gods Mega Morpheus Guano Tea 0-2-0 | 1gal - (Case of 4)
In Stock: 7
$39.73 $48.99 -19%
Nectar for The Gods The Kraken Crab & Shrimp 0-4-0 | 1gal - (Case of 4)
Out of stock
$39.73 $48.99 -19%
MILLS START 1 LTR
In Stock: 174
$39.60 $60.00 -34%
GH General Organics BioBud Quart (Case of 12)
In Stock: 145
$39.56 $56.01 -29%
SUPERthrive Pure Neem Oil Organic Leaf Polish | 32oz - (Case of 12)
In Stock: 143
$39.48 $59.25 -33%
Roots Organics Terp Tea Grow, 9 lb
In Stock: 297
$39.20 $53.99 -27%
General Hydroponics Flora Series Trial Pack | 3pc - 32oz FloraMicro, 32oz FloraGro, and 32oz FloraBloom
In Stock: 286
$39.09 $39.35 -1%
Down to Earth Soluble Root Growth Enhancer | 1lb - OMRI Listed - (Case of 6)
Out of stock
$39.01 $59.99 -35%
Down To Earth Fruit Tree 6-2-4 | 25lb - OMRI Listed
In Stock: 279
$38.98 $53.89 -28%
Down To Earth Rose & Flower Mix 4-8-4 | 25lb - OMRI Listed
In Stock: 157
$38.98 $53.89 -28%
Royal Gold Imperial Boost 0-15-11 | 10lb - (Case of 4)
In Stock: 35
$38.97 $48.24 -19%
HDI Clonex Rooting Gel | 250ml - Wide Mouth Bottle
In Stock: 873
$38.93 $48.02 -19%
Neptune's Harvest Seaweed Plant Food 0-0-1 | 1gal - Concentrate - Makes 128gal - OMRI Listed - (Case of 4)
In Stock: 43
$38.87 $49.49 -21%
Grotek Blossom Blaster, 130 g
In Stock: 2227
$38.87 $70.66 -45%
Down to Earth Bat Guano 7-3-1 | 10lb - OMRI Listed
In Stock: 245
$38.77 $49.99 -22%
Technaflora B.C. Boost, 4 L
In Stock: 176
$38.65 $52.99 -27%
HDI Ionic Grow Plant Nutrient 3-1-5 | 1gal - (Case of 4)
In Stock: 61
$38.61 $46.24 -17%
Down to Earth Acid Mix 4-3-6 | 25lb - For Acid Soil Loving Plants
In Stock: 365
$38.40 $52.99 -28%
HDI Ionic Bloom Plant Nutrient 3-2-6 | 1gal - (Case of 4)
In Stock: 92
$38.31 $46.24 -17%
FoxFarm Grow Big Hydro Liquid Concentrate, 2.5 gal
In Stock: 26
$38.29 $253.84 -85%
Royal Gold Crown Jewels Bloom 1-4-2 | 10lb - (Case of 4)
In Stock: 40
$38.25 $48.78 -22%
Royal Gold Crown Jewels Grow 3-2-2 | 10lb - (Case of 4)
In Stock: 140
$38.25 $48.78 -22%
Technaflora Recipe For Success Starter Kit
In Stock: 257
$38.23 $45.99 -17%
Down to Earth Starter Mix 3-3-3 | 25lb - OMRI Listed
Out of stock
$38.03 $51.79 -27%
Neptune's Harvest Fish Fertilizer 2-4-1 | 1gal - Concentrate - OMRI Listed - (Case of 4)
In Stock: 87
$37.77 $48.49 -22%
Botanicare Silica Blast 0-0-0.5 - 1gal
In Stock: 108
$37.66 $57.52 -35%
Soul LBS, 3 lb
In Stock: 143
$37.55 $52.46 -28%
Biobizz Acti-Vera 1L CA & OR only
Out of stock
$37.45 $51.58 -27%
Biobizz Acti-Vera 1L
In Stock: 41
$37.45 $51.58 -27%
Roots Organics Oregonism XL Root Growth Enhancer | 1lb - (Case of 12)
In Stock: 17
$37.37 $54.99 -32%
Grotek Monster Bloom, 500 g
In Stock: 2908
$37.11 $45.99 -19%
Grotek Vitamax Pro 1-1-1 | 4L - (Case of 4)
In Stock: 108
$36.54 $85.79 -57%
FoxFarm Grow Big Liquid Concentrate, 2.5 gal
Out of stock
$36.45 $241.57 -85%
FoxFarm Tiger Bloom Liquid Concentrate, 2.5 gal
Out of stock
$36.30 $241.61 -85%
Down To Earth Vegetable Garden 4-4-4 | 25lb - OMRI Listed
In Stock: 53
$36.13 $49.99 -28%
Down to Earth All-Purpose Mix 4-6-2 | 25lb - OMRI Listed
In Stock: 306
$36.13 $49.99 -28%
HYGROZYME Horticultural Horticulture Enzyme Formula | 1L (0.26gal)
In Stock: 24
$36.09 $39.00 -7%
House & Garden Aqua Flakes A, 5 L
In Stock: 224
$35.93 $49.48 -27%
House & Garden Aqua Flakes B, 5 L
In Stock: 211
$35.93 $49.48 -27%
House & Garden Soil A, 5 L
In Stock: 37
$35.93 $49.48 -27%
Plant Success Orca | 16oz
In Stock: 55
$35.89 $44.11 -19%
Orca Premium Liquid Mycorrhizae, 16 oz
In Stock: 51
$35.82 $43.99 -19%
SUPERthrive Root-Gel Rooting Gel | 8oz - (Case of 12)
Out of stock
$35.80 $51.99 -31%
House & Garden Multi Zen, 1 L
In Stock: 378
$35.77 $49.27 -27%
Grotek Insta-Green 3-0-0 | 4L - (Case of 4)
In Stock: 47
$35.76 $44.99 -21%
Big Foot Mycorrhizae Gold | 4oz
In Stock: 157
$35.72
Botanicare Hydroplex Bloom 0-10-6 - 32oz
In Stock: 85
$35.67 $54.45 -34%
Plant Success Great White Premium Mycorrhizae | 4oz
In Stock: 305
$35.64 $45.16 -21%
Roots Organics Terp Tea Bloom, 9 lb
In Stock: 321
$35.64 $53.99 -34%
Remo Bloom, 4 L
In Stock: 4
$35.59 $48.99 -27%
Down to Earth Liquid Bone Meal 0-12-0 | 1gal - (Case of 4)
Out of stock
$35.47 $48.99 -28%
Magnesium Sulfate Epsom Salts | 50lb (49/PL) - OMRI Listed
In Stock: 1053
$35.44 $36.25 -2%
Nectar for The Gods Olympus Up | 1gal - (Case of 4)
In Stock: 4
$35.36 $42.99 -18%
Roots Organics Uprising Foundation, 9 lbs
In Stock: 327
$35.28 $48.59 -27%
Roots Organics Uprising Grow, 9 lbs
In Stock: 249
$35.28 $48.59 -27%
DaKine 420 Atomic Root Powder | 1,000g - (Case of 4)
In Stock: 8
$35.18 $144.99 -76%
Down to Earth Fish Bone Meal 4-12-0 | 25lb - OMRI Listed
In Stock: 147
$35.18 $48.99 -28%
Technaflora B.C. Bloom, 4 L
In Stock: 103
$35.14 $47.99 -27%
Technaflora B.C. Grow, 4 L
In Stock: 67
$35.14 $47.99 -27%
CYCO 5L Kleanse (2/CS) - (Case of 2)
In Stock: 2
$34.97 $50.04 -30%
FoxFarm Bush Doctor Microbe Brew Microbial Inoculant 1-0.3-0.2 | 32oz - Concentrate
In Stock: 192
$34.93 $40.99 -15%
BioAg Ful-Power | 1 gal
In Stock: 96
$34.87 $52.99 -34%
BioAg Ful-Power | 1 gal (ID,IL,IA,KS,MN,NE,OH,OK,OR)
In Stock: 7
$34.87 $52.99 -34%
HDI Ionic PK BOOST Plant Nutrient 0-5-6 | 2.5gal - (Case of 2)
In Stock: 39
$34.85 $99.65 -65%
Mad Farmer Oxygenator, 6 gal
In Stock: 205
$34.65 $209.99 -83%
Remo Micro, 4 L
Out of stock
$34.65 $52.99 -35%
Remo Magnifical, 4 L
In Stock: 1
$34.65 $52.99 -35%
Show other 128 products
Product filters
Free Shipping
In Stock
Nutrient Material
Price
$
–
$
  • $0
  • $42768
Shop Owner
Brand
    Show all (88)