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Nutrients & Supplements

Soil Amendments
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Grotek Synergy, 140 grams
In stock
$46.45 $54.99 -16%
Big Foot Mycorrhizae Granular | 2lb
In stock
$46.35
Dyna-Gro Pro-TeKt, 1 gal
In stock
$46.27 $61.19 -24%
Down to Earth Fish Bone Meal 4-12-0 | 50lb - OMRI Listed
In stock
$46.22 $79.49 -42%
Aptus Breakout Powder, (5-Pack)
In stock
$46.20 $72.19 -36%
General Hydroponics ARMOR SI 0-0-4 | 1gal
In stock
$46.12 $72.83 -37%
General Organics BioThrive Bloom 2-4-4 | 1gal
In stock
$46.09 $72.67 -37%
Save 16%
Budswel, 1 gal
In stock
$46.04 $54.99 -16%
Xtreme Azos Beneficial Bacteria, 12 oz (340 g)
In stock
$45.94 $65.99 -30%
Down to Earth Fish Powder 12-1-1 | 5lb - (Case of 5)
In stock
$45.86 $67.39 -32%
Technaflora MagiCal, 4 L
In stock
$45.75 $74.99 -39%
Roots Organics HPK 0-4-3, 1 gal
In stock
$45.67 $71.42 -36%
Roots Organics Elemental, 9 lbs
In stock
$45.62 $71.27 -36%
Save 17%
Roots Organics Oregonism XL Root Growth Enhancer | 1lb - (Case of 12)
In stock
$45.41 $54.99 -17%
HEAVY 16 Prime, 32 oz
In stock
$45.35 $70.87 -36%
House & Garden Bud-XL, 1 L
In stock
$45.24 $64.26 -30%
Down to Earth Cottonseed Meal 6-2-1 | 50lb - All Purpose
In stock
$45.21 $84.99 -47%
Emerald Harvest Root Wizard | 32oz (OR)
In stock
$45.21 $96.00 -53%
House & Garden Commercial Bloom, 5 lbs Pouch
In stock
$45.12 $60.00 -25%
House & Garden Commercial Grow, 5 lbs Pouch
In stock
$45.12 $60.00 -25%
Emerald Harvest Cal-Mag | 1gal
In stock
$44.80 $70.00 -36%
Emerald Harvest Cal-Mag, 1 gal
In stock
$44.80 $70.00 -36%
Grow More Mendocino Avalanche, 1 gal
In stock
$44.80 $69.99 -36%
Mr. B's Green Trees Azospirillum Super Concentrate, 1 lb
In stock
$44.54 $69.60 -36%
House & Garden Algen Extract, 500 ml
In stock
$44.49 $63.19 -30%
Save 16%
Roots Organics HP2 | 1gal - (Case of 4)
In stock
$44.31 $52.99 -16%
Down to Earth Liquid Calcium 5% | 1gal - OMRI Listed - Makes 128 Gallons - (Case of 4)
In stock
$44.29 $62.99 -30%
Down to Earth Liquid All-Purpose 4-1-3 | 1gal - (Case of 4)
In stock
$44.29 $63.99 -31%
CYCO Platinum Series Silica 0-0-3 - 5L
In stock
$44.25 $69.89 -37%
Aphrodite's Extraction, 1 gal
In stock
$44.24 $69.49 -36%
Demeter's Destiny, 1 gal
In stock
$44.24 $69.49 -36%
Down to Earth Agmino Powder 14-0-0 | 5lb - (Case of 5)
In stock
$44.20 $95.29 -54%
Snow Storm Ultra, 1 qt
In stock
$44.12 $54.99 -20%
Save 2%
Sustane 4-6-4 All-Purpose Fertilizer | 50lb - OMRI Listed
In stock
$44.06 $44.75 -2%
Grotek Rype 3-0-0 | 4L - (Case of 4)
In stock
$44.03 $119.79 -63%
Microbe Life Hydroponics Terps Plus, 32 oz
In stock
$44.01 $62.99 -30%
Mad Farmer Mother Of All Bloom, 1 kg
In stock
$43.87 $91.02 -52%
BioBizz Root-Juice 1L
In stock
$43.74 $68.34 -36%
BioBizz Root-Juice 1L CA & OR only
In stock
$43.74 $68.34 -36%
HEAVY 16 Fire, 16 oz
In stock
$43.67 $68.24 -36%
HEAVY 16 Fire, 16 oz (OR Only)
In stock
$43.67 $68.24 -36%
HEAVY 16 Roots, 16 oz
In stock
$43.67 $68.24 -36%
General Hydroponics Diamond Nectar 0-1-1 - 1gal
In stock
$43.61 $68.90 -37%
Roots Organics HP2 0-4-0, 1 gal
In stock
$43.52 $68.03 -36%
Gaia Green Power Bloom, 10 kg
In stock
$43.49 $57.19 -24%
Cutting Edge Solutions Cal-Mag Amplified, 1 gal
In stock
$43.48 $61.99 -30%
Down to Earth Crab Meal 4-3-0 | 40lb - OMRI Listed
In stock
$43.34 $81.99 -47%
Grotek Cal Max 2-0-0 | 10L - (Case of 2)
In stock
$43.30 $134.99 -68%
Soul Amino-Aide, 1 qt
In stock
$43.10 $67.32 -36%
Gaia Green Worm Castings, 30L
In stock
$42.97 $55.99 -23%
Grotek Gro-Silic, 4 L
In stock
$42.96 $232.99 -82%
Grotek Pro-Silicate 0-0-4 | 10L - (Case of 2)
In stock
$42.93 $133.99 -68%
Roots Organics Oregonism XL, 1 lb
In stock
$42.85 $66.95 -36%
FoxFarm Cha Ching, 1 lb
In stock
$42.61 $59.35 -28%
Grotek Bloom Pack
In stock
$42.32 $132.39 -68%
CYCO 5L Uptake (2/CS) - (Case of 2)
In stock
$42.25 $66.11 -36%
Save 15%
Humboldt County's Own Sonic Bloom, 1 lb
In stock
$42.25 $49.99 -15%
Remo Grow, 10 L
In stock
$42.24 $99.00 -57%
Mother Earth LiquiCraft Grow 4-3-3 - 1gal
In stock
$41.96 $66.22 -37%
Budswel, 1 gal (CA Only)
In stock
$41.84 $54.99 -24%
Cultivation Nation Cal-Mag Gallon
Out of stock
$41.79 $68.09 -39%
Aurora Peat Products Procision Advantage, 3.8 cu ft bale
In stock
$41.75 $106.15 -61%
Xtreme Gardening Azos Root Booster | 12oz - (Case of 6)
In stock
$41.74 $53.77 -22%
Neptune's Harvest Fish & Seaweed Fertilizer 2-3-1 | 142oz - Concentrate - OMRI Listed - (Case of 4)
In stock
$41.57 $55.99 -26%
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