0Cart

Nutrients & Supplements

Soil Amendments
Sort by:
Price: High to Low
Show:
128
FoxFarm Open Sesame Soluble Fertilizer 5-45-19 | 1lb Jar
In Stock: 96
$45.91 $52.99 -13%
FoxFarm Beastie Bloomz Fertilizer 0-50-30 | 1lb
In Stock: 94
$45.91 $52.99 -13%
Roots Organics HP2 0-4-0, 1 gal
In Stock: 261
$45.90 $68.03 -33%
Gaia Green Power Bloom, 10 kg
In Stock: 766
$45.87 $57.19 -20%
Cutting Edge Solutions Cal-Mag Amplified, 1 gal
In Stock: 18
$45.86 $61.99 -26%
Down to Earth Bio-Fish 7-7-2 | 25lb - OMRI Listed
In Stock: 142
$45.70 $61.79 -26%
Grotek Cal Max 2-0-0 | 10L - (Case of 2)
In Stock: 4
$45.67 $134.99 -66%
Down to Earth All-Purpose Mix 4-6-2 | 50lb - OMRI Listed
In Stock: 123
$45.48 $82.99 -45%
Down to Earth Acid Mix 4-3-6 | 50lb - For Acid Soil Loving Plants
In Stock: 92
$45.48 $88.99 -49%
Down To Earth Vegetable Garden 4-4-4 | 50lb - OMRI Listed
In Stock: 145
$45.48 $84.29 -46%
Soul Big Swell, 1 qt
In Stock: 167
$45.45 $67.32 -32%
Gaia Green Worm Castings, 30L
In Stock: 266
$45.32 $55.99 -19%
Grotek Pro-Silicate 0-0-4 | 10L - (Case of 2)
In Stock: 4
$45.28 $133.99 -66%
Nectar for The Gods Gaia Mania Supplement 1-5-1 | 1gal - (Case of 4)
In Stock: 8
$45.20 $53.99 -16%
Nectar for The Gods Persephone's Palate | 1gal - (Case of 4)
Out of stock
$45.20 $53.99 -16%
Roots Organics Oregonism XL, 1 lb
In Stock: 118
$45.20 $66.95 -32%
General Hydroponics CALiMAGic 1-0-0 - 1gal
In Stock: 514
$44.91 $62.93 -29%
SUPERthrive, 1 pt
In Stock: 70
$44.81 $50.49 -11%
Grotek Bloom Pack
In Stock: 4
$44.63 $132.39 -66%
MILLS START 1 LTR
In Stock: 198
$44.55 $60.00 -26%
Mother Earth LiquiCraft Grow 4-3-3 - 1gal
In Stock: 27
$44.25 $66.22 -33%
Botanicare Cal-Mag Plus 2-0-0 | 1gal
In Stock: 690
$44.21 $62.90 -30%
Purple Maxx, 1 qt
Out of stock
$44.19 $85.99 -49%
Budswel, 1 gal
In Stock: 604
$44.13 $54.99 -20%
Budswel, 1 gal (CA Only)
In Stock: 694
$44.13 $54.99 -20%
Down to Earth Fish Bone Meal 4-12-0 | 50lb - OMRI Listed
In Stock: 103
$44.12 $79.49 -44%
Neptune's Harvest Fish & Seaweed Fertilizer 2-3-1 | 142oz - Concentrate - OMRI Listed - (Case of 4)
In Stock: 222
$44.06 $56.59 -22%
Xtreme Azos Beneficial Bacteria, 12 oz (340 g)
In Stock: 227
$44.06 $65.99 -33%
Aurora Peat Products Procision Advantage, 3.8 cu ft bale
Out of stock
$44.04 $58.72 -25%
Primordial Solutions PaleoBloom, 5 gal
In Stock: 1
$43.86 $284.99 -85%
Down to Earth Feather Meal 12-0-0 | 20lb - OMRI Listed
In Stock: 54
$43.77 $69.99 -37%
Xtreme Tea Brews Individual Pouches, 80 g & Microbe Food Packs, 7 g (10 each)
In Stock: 96
$43.48 $63.99 -32%
Roots Organics Terp Tea Grow | 9lb - (Case of 3)
In Stock: 10
$43.29 $44.99 -4%
HDI MotherPlant Nutrients Part A | 1gal - (Case of 4)
In Stock: 8
$43.20 $49.07 -12%
Down to Earth Cottonseed Meal 6-2-1 | 50lb - All Purpose
In Stock: 110
$43.13 $84.99 -49%
Technaflora Recipe For Success Starter Kit
In Stock: 237
$43.00 $45.99 -7%
Down to Earth Citrus Mix 6-3-3 | 25lb - OMRI Listed
In Stock: 171
$42.80 $57.89 -26%
Down to Earth Granular Humic Acids | 50lb - OMRI Listed
In Stock: 278
$42.75 $59.99 -29%
SUPERthrive Vitamin Solution 0.5-0-0 | 16oz
In Stock: 726
$42.52 $45.99 -8%
Nectar for The Gods Poseidonzime Foliar Spray 0-0-0.5 | 1gal
In Stock: 32
$42.43 $69.99 -39%
Soul LBS, 3 lb
In Stock: 128
$42.26 $52.46 -19%
Down to Earth Agmino Powder 14-0-0 | 5lb - (Case of 5)
In Stock: 10
$42.17 $95.29 -56%
Roots Organics Ancient Amber, 1 gal
In Stock: 62
$42.11 $62.36 -32%
DaKine 420 Sticky Icky Enzymes | 1,000g - (Case of 4)
In Stock: 24
$41.93 $168.99 -75%
Aphrodite's Extraction, 5 gal
In Stock: 11
$41.92 $248.49 -83%
Gaia Green All Purpose, 10 kg
In Stock: 897
$41.82 $56.10 -25%
Humboldt Nutrients Verde, 2.5 gal
In Stock: 10
$41.44 $244.99 -83%
Down to Earth Crab Meal 4-3-0 | 40lb - OMRI Listed
In Stock: 109
$41.35 $81.99 -50%
Down to Earth Bone Meal 3-15-0 | 25lb - OMRI Listed
In Stock: 111
$41.20 $58.29 -29%
Technaflora Thrive Alive B1 Red, 1 L
In Stock: 122
$41.18 $59.99 -31%
Optic Foliar ATAK Concentrate, 24 L
In Stock: 13
$41.08 $303.99 -86%
Roots Organics Terp Tea Bloom | 9lb - (Case of 3)
In Stock: 59
$40.88 $42.99 -5%
Grotek Heavy Bud Pro 1-0-3 | 4L - (Case of 4)
In Stock: 56
$40.85 $120.99 -66%
HDI Ionic Bloom for Soil Premium Plant Nutrient 2-2-5 | 1gal - (Case of 4)
In Stock: 36
$40.76 $46.24 -12%
HDI Ionic Grow for Soil Plant Nutrient 3-1-4 | 1gal - (Case of 4)
In Stock: 20
$40.76 $46.24 -12%
Nectar for The Gods Athena's Aminas 0.5-0-0 | 1gal
In Stock: 5
$40.64 $48.99 -17%
Nectar for The Gods Hygeia Hydration Yucca Extract | 1gal - (Case of 4)
Out of stock
$40.64 $48.99 -17%
Nectar for The Gods Medusa's Magic Soil Nutrient 2-5-2 | 1gal - (Case of 4)
Out of stock
$40.64 $48.99 -17%
Nectar for The Gods Mega Morpheus Guano Tea 0-2-0 | 1gal - (Case of 4)
In Stock: 4
$40.64 $48.99 -17%
Nectar for The Gods The Kraken Crab & Shrimp 0-4-0 | 1gal - (Case of 4)
Out of stock
$40.64 $48.99 -17%
GH General Organics BioBud Quart (Case of 12)
In Stock: 49
$40.46 $52.35 -23%
SUPERthrive Pure Neem Oil Organic Leaf Polish | 32oz - (Case of 12)
In Stock: 156
$40.38 $59.25 -32%
Down to Earth Alfalfa Meal 2.5-0.5-2.5 | 25lb - OMRI Listed
In Stock: 1111
$39.99
General Hydroponics Flora Series Trial Pack | 3pc - 32oz FloraMicro, 32oz FloraGro, and 32oz FloraBloom
In Stock: 267
$39.97
Down to Earth Soluble Root Growth Enhancer | 1lb - OMRI Listed - (Case of 6)
Out of stock
$39.89 $59.99 -34%
Down To Earth Fruit Tree 6-2-4 | 25lb - OMRI Listed
In Stock: 350
$39.87 $53.89 -26%
Down To Earth Rose & Flower Mix 4-8-4 | 25lb - OMRI Listed
In Stock: 184
$39.87 $53.89 -26%
HDI Clonex Rooting Gel | 250ml - Wide Mouth Bottle
In Stock: 905
$39.81 $48.02 -17%
Neptune's Harvest Seaweed Plant Food 0-0-1 | 1gal - Concentrate - Makes 128gal - OMRI Listed - (Case of 4)
In Stock: 79
$39.76 $49.49 -20%
Grotek Blossom Blaster, 130 g
In Stock: 2287
$39.76 $70.66 -44%
Age Old Grow, 1 gal
In Stock: 44
$39.69 $48.99 -19%
Age Old Bloom, 1 gal
In Stock: 61
$39.69 $48.99 -19%
Age Old Kelp, 1 gal
In Stock: 35
$39.69 $48.99 -19%
Down to Earth Bat Guano 7-3-1 | 10lb - OMRI Listed
In Stock: 249
$39.65 $49.99 -21%
Technaflora B.C. Boost, 4 L
In Stock: 103
$39.53 $52.99 -25%
HDI Ionic Grow Plant Nutrient 3-1-5 | 1gal - (Case of 4)
In Stock: 53
$39.49 $46.24 -15%
Royal Gold Imperial Boost 0-15-11 | 10lb - (Case of 4)
In Stock: 27
$39.37 $46.99 -16%
Down to Earth Acid Mix 4-3-6 | 25lb - For Acid Soil Loving Plants
In Stock: 466
$39.27 $52.99 -26%
BioAg Ful-Power | 1 gal
In Stock: 161
$39.24 $52.99 -26%
BioAg Ful-Power | 1 gal (ID,IL,IA,KS,MN,NE,OH,OK,OR)
In Stock: 11
$39.24 $52.99 -26%
HDI Ionic Bloom Plant Nutrient 3-2-6 | 1gal - (Case of 4)
In Stock: 92
$39.18 $46.24 -15%
FoxFarm Grow Big Hydro Liquid Concentrate, 2.5 gal
In Stock: 28
$39.16 $253.84 -85%
Royal Gold Crown Jewels Bloom 1-4-2 | 10lb - (Case of 4)
In Stock: 36
$39.08 $46.99 -17%
Royal Gold Crown Jewels Grow 3-2-2 | 10lb - (Case of 4)
In Stock: 144
$39.08 $46.99 -17%
Rhizoflora Terpinator 0-0-4 - 1gal
In Stock: 2
$39.00 $73.22 -47%
Remo Micro, 4 L
In Stock: 16
$38.99 $52.99 -26%
Remo Magnifical, 4 L
In Stock: 4
$38.99 $52.99 -26%
Down to Earth Starter Mix 3-3-3 | 25lb - OMRI Listed
Out of stock
$38.89 $51.79 -25%
Grotek Pro-Silicate, 4 L
In Stock: 967
$38.77 $46.99 -17%
Neptune's Harvest Fish Fertilizer 2-4-1 | 1gal - Concentrate - OMRI Listed - (Case of 4)
In Stock: 40
$38.62 $48.49 -20%
Botanicare Silica Blast 0-0-0.5 - 1gal
In Stock: 87
$38.52 $54.78 -30%
Biobizz Acti-Vera 1L CA & OR only
Out of stock
$38.30 $51.58 -26%
Biobizz Acti-Vera 1L
In Stock: 57
$38.30 $51.58 -26%
Roots Organics Oregonism XL Root Growth Enhancer | 1lb - (Case of 12)
In Stock: 17
$38.22 $54.99 -30%
Grotek Monster Bloom, 500 g
In Stock: 6211
$37.95 $45.99 -17%
Grotek Monster Grow Pro, 500 g
In Stock: 628
$37.95 $45.99 -17%
Great White Premium Mycorrhizae, 4 oz
In Stock: 344
$37.54 $44.99 -17%
Grotek Vitamax Pro 1-1-1 | 4L - (Case of 4)
In Stock: 108
$37.37 $85.79 -56%
FoxFarm Grow Big Liquid Concentrate, 2.5 gal
In Stock: 153
$37.27 $241.57 -85%
FoxFarm Tiger Bloom Liquid Concentrate, 2.5 gal
In Stock: 163
$37.12 $241.61 -85%
Down To Earth Vegetable Garden 4-4-4 | 25lb - OMRI Listed
In Stock: 194
$36.95 $49.99 -26%
Down to Earth All-Purpose Mix 4-6-2 | 25lb - OMRI Listed
In Stock: 361
$36.95 $49.99 -26%
HYGROZYME Horticultural Horticulture Enzyme Formula | 1L (0.26gal)
Out of stock
$36.91 $39.00 -5%
House & Garden Cocos A, 5 L
In Stock: 461
$36.75 $49.48 -26%
House & Garden Cocos B, 5 L
In Stock: 317
$36.75 $49.48 -26%
Plant Success Orca | 16oz
In Stock: 64
$36.71 $44.11 -17%
Orca Premium Liquid Mycorrhizae, 16 oz
In Stock: 58
$36.64 $43.99 -17%
SUPERthrive Root-Gel Rooting Gel | 8oz - (Case of 12)
Out of stock
$36.61 $51.99 -30%
House & Garden Multi Zen, 1 L
In Stock: 404
$36.58 $49.27 -26%
Grotek Insta-Green 3-0-0 | 4L - (Case of 4)
In Stock: 51
$36.57 $44.99 -19%
Botanicare Hydroplex Bloom 0-10-6 - 32oz
In Stock: 87
$36.48 $50.89 -28%
Plant Success Great White Premium Mycorrhizae | 4oz
In Stock: 215
$36.45 $45.16 -19%
Roots Organics Terp Tea Bloom, 9 lb
In Stock: 210
$36.45 $53.99 -32%
Roots Organics Terp Tea Grow, 9 lb
In Stock: 314
$36.45 $53.99 -32%
Remo Bloom, 4 L
In Stock: 5
$36.40 $48.99 -26%
Down to Earth Liquid Bone Meal 0-12-0 | 1gal - (Case of 4)
Out of stock
$36.27 $48.99 -26%
Magnesium Sulfate Epsom Salts | 50lb (49/PL) - OMRI Listed
In Stock: 1781
$36.25
Nectar for The Gods Olympus Up | 1gal - (Case of 4)
In Stock: 12
$36.17 $42.99 -16%
DaKine 420 Atomic Root Powder | 1,000g - (Case of 4)
In Stock: 12
$35.98 $144.99 -75%
Down to Earth Fish Bone Meal 4-12-0 | 25lb - OMRI Listed
In Stock: 206
$35.98 $48.99 -27%
Humboldt Honey Organic ES, 2.5 gal
In Stock: 18
$35.98 $212.99 -83%
Technaflora B.C. Bloom, 4 L
In Stock: 64
$35.94 $47.99 -25%
CYCO 5L Kleanse (2/CS) - (Case of 2)
In Stock: 2
$35.76 $50.04 -29%
Big Foot Mycorrhizae Gold | 4oz
In Stock: 57
$35.72
FoxFarm Bush Doctor Microbe Brew Microbial Inoculant 1-0.3-0.2 | 32oz - Concentrate
In Stock: 112
$35.72 $40.99 -13%
HDI Ionic PK BOOST Plant Nutrient 0-5-6 | 2.5gal - (Case of 2)
In Stock: 39
$35.64 $99.65 -64%
Mad Farmer Oxygenator, 6 gal
In Stock: 211
$35.44 $209.99 -83%
HEAVY 16 Foliar, 32 oz
In Stock: 338
$35.42 $52.49 -33%
Show other 128 products
Product filters
Free Shipping
In Stock
Nutrient Material
Price
$
–
$
  • $0
  • $43740
Shop Owner
Brand
    Show all (87)