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Rootline Supply Co.
Rootline Supply Co. provides reliable tools and products for growers, gardeners, and cultivators who care about quality. We’re focused...
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10 months 3 days
Grand Rapids, US
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Nutrients & Supplements

Neptune's Harvest Kelp Meal Multi-Purpose Plant Food 1-0-2 | 4lb - OMRI Listed - (Case of 6)
In Stock: 56
$151.50 / $25.25 per unit
(minimum purchase of 6)
Nectar for The Gods Medusa's Magic Soil Nutrient 2-5-2 | 2.5gal - (Case of 2)
Out of stock
$156.62 / $78.31 per unit
(minimum purchase of 2)
FoxFarm Bush Doctor Sledgehammer | 32oz - OMRI Listed
In Stock: 319
$31.73 $33.99 -7%
MICROBE Life Hydroponics Photosynthesis Plus | 1gal - (Case of 4)
In Stock: 43
$291.32 / $72.83 per unit
(minimum purchase of 4)
SUPERthrive Vitamin Solution Fertilizer | 1gal - Concentrate
In Stock: 483
$215.02 $228.99 -6%
Nectar for The Gods Olympus Up | 2.5gal - (Case of 2)
In Stock: 6
$139.26 / $69.63 per unit
(minimum purchase of 2)
Roots Organics HP2 | 1gal - (Case of 4)
In Stock: 8
$130.00 / $32.50 per unit
(minimum purchase of 4)
Royal Gold Crown Jewels Bloom 1-4-2 | 20lb - (Case of 2)
In Stock: 30
$148.08 / $74.04 per unit
(minimum purchase of 2)
Neptune's Harvest Fish & Seaweed Fertilizer 2-3-1 | 142oz - Concentrate - OMRI Listed - (Case of 4)
In Stock: 68
$185.08 / $46.27 per unit
(minimum purchase of 4)
HYCLEAN Line & Equipment Cleaner for Irrigation Systems | 4L (1.05gal) - Non-Toxic - (Case of 4)
In Stock: 53
$336.92 / $84.23 per unit
(minimum purchase of 4)
BioAg Bio-SuperSil Soluble Silicon | 2.5gal - 0.5% Nanostructured Silicon
In Stock: 66
$151.87 $202.72 -25%
SUPERthrive Bloom Plant Nutrients 3-12-6 | 32oz - (Case of 12)
In Stock: 36
$234.48 / $19.54 per unit
(minimum purchase of 12)
FoxFarm Bush Doctor Sledgehammer | 1gal - OMRI Listed - (Case of 4)
In Stock: 35
$439.80 / $109.95 per unit
(minimum purchase of 4)
General Hydroponics Ripen 0.5-7-6 | 32oz
In Stock: 218
$19.37 $43.29 -55%
Emerald Harvest Starter Kit | 32oz - 2 Part Base
In Stock: 24
$201.40 $220.00 -8%
Emerald Harvest Micro | 32oz
In Stock: 1
$12.05 $18.00 -33%
FoxFarm Grow Big Hydroponic Fertilizer 3-2-6 | 32oz - Concentrate
In Stock: 440
$381.84 / $31.82 per unit
(minimum purchase of 12)
FoxFarm Beastie Bloomz Fertilizer 0-50-30 | 2lb
In Stock: 95
$93.47 $97.99 -5%
Nectar for The Gods Poseidonzime Foliar Spray 0-0-0.5 | 32oz
In Stock: 15
$19.15 $23.99 -20%
Nectar for The Gods Hades Down 0-1-0 | 2.5gal - (Case of 2)
In Stock: 24
$129.24 / $64.62 per unit
(minimum purchase of 2)
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