0Cart

Nutrients & Supplements

Soil Amendments
Sort by:
Price: High to Low
Show:
128
Emerald Harvest Emerald Goddess 2-1-4 | 32oz
In Stock: 74
$28.58 $44.00 -35%
Emerald Harvest King Kola 0.3-2-3 | 32oz
In Stock: 109
$28.58 $44.00 -35%
Emerald Harvest King Kola 0.3-2-3 | 32oz (FL, NM, PA)
In Stock: 8
$28.58 $44.00 -35%
General Hydroponics Ripen 0.5-7-6 | 32oz
In Stock: 73
$28.58 $40.46 -29%
Down to Earth All-Purpose Mix 4-6-2 | 3pk - 5lb - OMRI Listed
In Stock: 218
$28.51 $39.39 -28%
Down To Earth Acid Mix 4-3-6 | 15lb - 3pk of 5lb
In Stock: 317
$28.51 $39.39 -28%
Down To Earth Vegetable Garden 4-4-4 | 15lb - 3pk of 5lb
In Stock: 373
$28.51 $39.39 -28%
South Cascade Organics SLF-100, 1 qt
In Stock: 412
$28.50 $35.99 -21%
FoxFarm Bush Doctor Boomerang Comeback Formula 2-0.2-0.3 | 32oz
In Stock: 208
$28.49 $33.99 -16%
Grotek Pro-Silicate 0-0-4 | 4L - (Case of 4)
In Stock: 16
$28.41 $53.99 -47%
Down to Earth Granular Root Zone | 8oz - OMRI Listed - (Case of 12)
Out of stock
$28.35 $44.39 -36%
FoxFarm Bush Doctor Sledgehammer | 32oz - OMRI Listed
In Stock: 357
$28.16 $33.99 -17%
Xtreme Gardening Calcar Foliar Booster | 6oz - (Case of 12)
In Stock: 24
$28.12 $34.49 -18%
General Hydroponics FloraBloom 0-5-4 - 1gal
In Stock: 905
$28.05 $40.53 -31%
General Hydroponics FloraGro 2-1-6 - 1gal
In Stock: 696
$28.05 $40.53 -31%
House & Garden Magnesium Boost, 1 L
In Stock: 66
$28.00 $38.56 -27%
Big Foot Mycorrhizae Concentrate | 8oz
In Stock: 85
$27.80
Emerald Harvest Micro, 1 gal
In Stock: 41
$27.72 $42.00 -34%
Grotek Solo-Tek Grow 6-3-7 | 4L - (Case of 4)
In Stock: 36
$27.60 $83.69 -67%
Grotek Solo-Tek Bloom 3-8-8 | 4L - (Case of 4)
In Stock: 36
$27.60 $83.69 -67%
Big Foot Root Boost Nitrogen-Fixing Azospirillum | 10oz
In Stock: 145
$27.50
Botanicare Sweet Berry Plant Food | 32oz
In Stock: 188
$27.40 $39.03 -30%
Technaflora Thrive Alive B1 Red, 500ml
In Stock: 71
$27.30 $39.96 -32%
Emerald Harvest Micro | 1gal - (Case of 4)
In Stock: 50
$27.18 $42.00 -35%
General Hydroponics KoolBloom 2-45-28 - 2.2lb
In Stock: 383
$27.17 $38.87 -30%
Emerald Harvest Cali Pro Bloom A, 1 gal
In Stock: 57
$27.06 $41.00 -34%
Emerald Harvest Cali Pro Bloom B, 1 gal
In Stock: 64
$27.06 $41.00 -34%
Emerald Harvest Cali Pro Grow B, 1 gal
In Stock: 2
$27.06 $41.00 -34%
Grotek Insta-Green 3-0-0 | 10L - (Case of 2)
In Stock: 20
$26.97 $81.79 -67%
General Hydroponics FloraPro Calcium + Micros 14-0-0 + 17% Ca - 5lb
In Stock: 6
$26.93 $40.25 -33%
Growth Science Nutrients Strength, 2.5 gal
In Stock: 1
$26.90 $115.99 -77%
Optic Foliar Transport, 250 ml
In Stock: 63
$26.89 $39.99 -33%
Botanicare Liquid Karma 0.1-0.1-0.5 - 32oz
In Stock: 411
$26.86 $38.26 -30%
Grow More Bio-Cozyme, 1 gal
In Stock: 178
$26.85 $39.99 -33%
Emerald Harvest Sturdy Stalk | 32oz
In Stock: 100
$26.78 $38.50 -30%
CYCO 5L Bloom B (2/CS) - (Case of 2)
In Stock: 8
$26.72 $36.81 -27%
CYCO Bloom A 5 L (2/CS) - (Case of 2)
In Stock: 48
$26.72 $36.81 -27%
CYCO 5L Grow B (2/CS) - (Case of 2)
In Stock: 10
$26.72 $36.81 -27%
CYCO 5L Grow A (2/CS) - (Case of 2)
In Stock: 9
$26.72 $36.81 -27%
FoxFarm Bush Doctor Kelp Me Kelp You 0.5-0-0.5 | 32oz - Concentrate - OMRI Listed
In Stock: 326
$26.70 $34.99 -24%
PRO-MIX LP15 | 2.8cu ft - Loose Fill (Pallet of 57)
Out of stock
$26.64 $27.24 -2%
Xtreme Azos Beneficial Bacteria, 6 oz (170 g)
In Stock: 161
$26.64 $40.99 -35%
Grotek Bud Fuel Pro, 1 L
In Stock: 1217
$26.60 $36.26 -27%
South Cascade Organics SLF-100 | 32oz - OMRI Listed - (Case of 12)
In Stock: 228
$26.56 $35.99 -26%
Emerald Harvest Cali Pro Grow A 3-0-0 | 1gal - (Case of 4)
In Stock: 44
$26.55 $41.00 -35%
Emerald Harvest Cali Pro Grow B 2-2-5 | 1gal - (Case of 4)
In Stock: 48
$26.55 $41.00 -35%
Emerald Harvest Cali Pro Bloom A 3-0-3 | 1gal - (Case of 4)
In Stock: 23
$26.55 $41.00 -35%
Emerald Harvest Cali Pro Bloom B 1-4-6 | 1gal - (Case of 4)
In Stock: 19
$26.55 $41.00 -35%
Xtreme Gardening Azos Root Booster | 6oz - (Case of 12)
In Stock: 95
$26.52 $32.51 -18%
Xtreme Gardening Mykos | 2.2lb - (Case of 6)
In Stock: 54
$26.52 $32.51 -18%
Cutting Edge Solutions Uncle John's Blend, 1 qt
In Stock: 47
$26.52 $34.99 -24%
DaKine 420 Nitro Nutrients Bloom | 2,000g - (Case of 4)
Out of stock
$26.44 $108.99 -76%
DaKine 420 Nitro Nutrients Grow | 2,000g - (Case of 4)
In Stock: 4
$26.44 $108.99 -76%
Sustane 8-2-4 Lawn & Landscape Plant Food | 20lb - OMRI Listed
In Stock: 74
$26.35 $37.71 -30%
Great White Granular 1 Mycorrhizal | 2.2lb - OMRI Listed
In Stock: 12
$26.33 $33.85 -22%
Down to Earth Oyster Shell | 50lb - OMRI Listed
Out of stock
$26.23 $35.99 -27%
House & Garden Roots Excelurator Gold, 100 ml
In Stock: 634
$26.15 $39.63 -34%
Xtreme Mykos Pure Mycorrhizal Inoculum, Granular, 2.2 lbs
In Stock: 196
$26.14 $39.99 -35%
FoxFarm Tiger Bloom Buds & Blooms Fertilizer 2-8-4 | 32oz - Concentrate
In Stock: 934
$26.00 $30.99 -16%
FoxFarm Grow Big Fertilizer 6-4-4 | 32oz - Concentrate
In Stock: 1416
$25.99 $30.99 -16%
SUPERthrive K-L-N Rooting Concentrate | 32oz - (Case of 12)
In Stock: 59
$25.78 $40.58 -36%
Growth Science Organics Grow, 1 gal
In Stock: 28
$25.78 $74.99 -66%
PureCrop 16 oz
In Stock: 43
$25.74 $32.00 -20%
Rhizoflora Purpinator 0-2-4 - 32oz
In Stock: 81
$25.63
General Hydroponics FloraNova Grow 7-4-10 - 32oz
In Stock: 842
$25.42 $36.39 -30%
General Hydroponics FloraNova Bloom 4-8-7 - 32oz
In Stock: 1086
$25.42 $36.39 -30%
Emerald Harvest Sturdy Stalk, 1 qt
In Stock: 91
$25.41 $38.50 -34%
Vegamatrix Amp-It, 1 gal
In Stock: 12
$25.21 $99.99 -75%
House & Garden Magic Green -- 250mL
Out of stock
$25.16 $34.64 -27%
Nectar for The Gods Bloom Khaos Foliar Spray 0-0-0.5 | 32oz
In Stock: 11
$25.01 $32.99 -24%
Great White Granular 1, 2.2lbs
In Stock: 82
$25.01 $33.99 -26%
Plant Success King Crab, 4 oz
In Stock: 68
$24.95 $27.99 -11%
Grotek Cal-Max, 1 gal
In Stock: 922
$24.93 $45.33 -45%
Grotek Cal Max 2-0-0 | 4L - (Case of 4)
In Stock: 54
$24.87 $47.59 -48%
Gaia Green Greensand, 1.25 kg Pouch
In Stock: 153
$24.80 $26.49 -6%
Growth Science Organics Humic Tonic, 2.5 gal
In Stock: 5
$24.75 $129.99 -81%
House & Garden Amino Treatment, 100 ml
In Stock: 605
$24.74 $37.49 -34%
Roots Organics Trinity, 1 qt
In Stock: 47
$24.74 $34.00 -27%
Roots Organics Trinity, 1 qt
In Stock: 391
$24.74 $34.00 -27%
Grotek Blossom Blaster 1-4-0 | 130g
In Stock: 336
$24.47 $74.29 -67%
Mega Morpheus, 5 gal
In Stock: 1
$24.38 $184.99 -87%
Roots Organics Seabird Guano Powder, 9 lbs
In Stock: 20
$24.30 $33.47 -27%
General Hydroponics FloraPro Grow 10-12-22 - 5lb
In Stock: 80
$24.24 $40.25 -40%
General Hydroponics FloraPro Bloom 7-12-27 - 5lb
In Stock: 60
$24.24 $40.25 -40%
MICROBE Life Hydroponics All-In-One | 16oz - (Case of 12)
Out of stock
$24.19
Microbe Life Photosynthesis Plus, 1 qt
In Stock: 193
$24.14 $32.99 -27%
Microbe Life Plus-C, 1 qt (CA)
In Stock: 129
$24.14 $32.99 -27%
Microbe Life Photosynthesis Plus-O, 1 qt (OR)
In Stock: 17
$24.14 $32.99 -27%
Soul Sensei Micro, 5 gal
In Stock: 3
$24.10 $182.59 -87%
House & Garden Top Booster, 1 L
In Stock: 306
$24.04 $36.41 -34%
DaKine 420 Bio Minerals | 2,000g - (Case of 4)
In Stock: 16
$24.01 $98.99 -76%
DaKine 420 CalMag | 2,000g - (Case of 4)
Out of stock
$24.01 $98.99 -76%
DaKine 420 Sticky Icky Enzymes | 500g - (Case of 4)
In Stock: 26
$24.01 $98.99 -76%
SugarDaddy, 1 L
In Stock: 191
$24.01 $33.99 -29%
Down to Earth Liquid Bloom 2-6-5 | 32oz - (Case of 10)
In Stock: 100
$23.99
Athena's Aminas, 1 gal
Out of stock
$23.92 $51.99 -54%
Pegasus Potion, 1 gal
In Stock: 8
$23.81 $51.99 -54%
Coast of Maine Squid All Natural Liquid Plant Food 2-3-0, 1 qt
In Stock: 27
$23.72 $24.99 -5%
Roots Organics Oregonism XL, 8 oz
In Stock: 150
$23.52 $35.63 -34%
Down to Earth Kelp Meal 1-0.1-2 | 4lb - OMRI Listed
In Stock: 1062
$23.51 $33.99 -31%
MICROBE Life Hydroponics Vegetable & Fruit Yield Enhancer | 32oz - (Case of 12)
In Stock: 48
$23.46 $43.99 -47%
Neptune's Harvest Kelp Meal Multi-Purpose Plant Food 1-0-2 | 4lb - OMRI Listed - (Case of 6)
In Stock: 42
$23.28 $29.99 -22%
HDI Europonic FossilFuel Liquid Humic Acids | 1gal - (Case of 4)
Out of stock
$23.23 $54.99 -58%
Emerald Harvest Bloom, 1 gal
In Stock: 66
$23.10 $35.00 -34%
Emerald Harvest Grow, 1 gal
In Stock: 22
$23.10 $35.00 -34%
Roots Organics Trinity | 32oz
In Stock: 34
$23.07 $25.99 -11%
Grotek Vitamax Pro, 1 L
In Stock: 1043
$22.74 $31.02 -27%
CYCO Commercial Series Bloom 8-6-11 - 750g
In Stock: 79
$22.70 $66.11 -66%
Grow More Mendocino Honey, 1 gal
In Stock: 391
$22.66 $33.99 -33%
MICROBE Life Hydroponics Photosynthesis Plus | 32oz - (Case of 12)
In Stock: 120
$22.65 $42.99 -47%
Emerald Harvest Grow | 1gal - (Case of 4)
In Stock: 15
$22.65 $35.00 -35%
Emerald Harvest Bloom | 1gal - (Case of 4)
In Stock: 14
$22.65 $35.00 -35%
Humboldt Nutrients Master-B, 2.5 gal
In Stock: 1
$22.57 $170.99 -87%
MICROBE Life Hydroponics Foliar Spray & Root Dip | 32oz - (Case of 12)
Out of stock
$22.48 $41.99 -46%
Gaia Green Power Bloom, 2 kg Pouch
In Stock: 784
$22.47 $28.59 -21%
Rainbow Mix "PRO" Grow 8-6-3, 40 lbs
In Stock: 222
$22.40 $175.49 -87%
Coast of Maine Kelp Meal Organic Plant Food 1-0-1, 4 lbs
Out of stock
$22.29 $22.99 -3%
Xtreme Gardening Mykos WP | 12oz - Wettable Powder - (Case of 12)
In Stock: 24
$22.08 $27.07 -18%
Xtreme Mykos Pure Mycorrhizal Inoculum, Wettable Powder, 12 oz
In Stock: 343
$21.96 $34.99 -37%
FoxFarm Bush Doctor 1-0-0 Cal-Mag Supplement | 32oz - 3% Calcium - 0.9% Magnesium - OMRI Listed - (Case of 12)
In Stock: 456
$21.83 $26.99 -19%
FOOP Garden Organic Plant Fertilizer | 32oz - Concentrate - OMRI Listed - (Case of 12)
Out of stock
$21.78 $24.99 -13%
General Hydroponics FloraKleen - 1gal
In Stock: 93
$21.71 $30.99 -30%
Botanicare Pure Blend Pro Bloom Formula 2-3-5 - 32oz
In Stock: 226
$21.71 $30.99 -30%
Xtreme Gardening Mykos Root Paks | 50ct - (Case of 6)
In Stock: 72
$21.67 $26.58 -18%
HYGROZYME Horticultural Horticulture Enzyme Formula | 500mL (16.9oz)
In Stock: 22
$21.60 $24.43 -12%
Key Grow Solutions Green Dragon 0-0-18 | 1gal - (Case of 4)
In Stock: 160
$21.56 $119.99 -82%
Key Grow Solutions Silver Rabbit 7-20-4 | 1gal - (Case of 4)
In Stock: 44
$21.56 $119.99 -82%
Botanicare Pure Blend Pro Soil 1-4-5 - 32oz
In Stock: 507
$21.29 $30.37 -30%
Show other 128 products
Product filters
Free Shipping
In Stock
Nutrient Material
Price
$
–
$
  • $0
  • $42768
Shop Owner
Brand
    Show all (88)