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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...
6K
10 months 3 days
Grand Rapids, US
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Nutrients & Supplements

HYGROZYME Horticultural Enzyme Formula | 20L - Concentrate
In Stock: 7
$1,209.06 $1,927.27 -37%
Down to Earth All-Purpose Mix 4-6-2 | 3pk - 5lb - OMRI Listed
In Stock: 204
$29.09 $39.39 -26%
Dip N Grow Rooting Hormone | 1pt
In Stock: 163
$62.32 $69.51 -10%
Emerald Harvest Root Wizard | 32oz (OR)
In Stock: 33
$34.98 $96.00 -64%
Down to Earth Kelp Meal 1-0.1-2 | 50lb - OMRI Listed
In Stock: 113
$206.35 $287.99 -28%
General Hydroponics ARMOR SI 0-0-4 | 55gal
In Stock: 32
$1,457.00 $3,301.84 -56%
Nectar for The Gods Mega Morpheus Guano Tea 0-2-0 | 32oz
In Stock: 32
$13.04 $15.99 -18%
HDI Ionic PK BOOST Plant Nutrient 0-5-6 | 32oz
In Stock: 68
$207.12 / $17.26 per unit
(minimum purchase of 12)
Nectar for The Gods Pegasus Potion Feather Tea 1-2-0 | 1gal - (Case of 4)
In Stock: 36
$86.16 / $21.54 per unit
(minimum purchase of 4)
FoxFarm Bush Doctor 1-0-0 Cal-Mag Supplement | 1gal - 3% Calcium - 0.9% Magnesium - OMRI Listed - (Case of 4)
In Stock: 27
$375.28 / $93.82 per unit
(minimum purchase of 4)
HDI Clonex Mist Root Promoter | 300mL - (Case of 6)
In Stock: 88
$132.78 / $22.13 per unit
(minimum purchase of 6)
Armory Beneficial Bacteria Blend | 200oz - OMRI Listed
Out of stock
$1,388.22 $1,548.40 -10%
BioAg Bio-SuperSil Soluble Silicon | 1gal- 0.5% Nanostructured Silicon - (Case of 4)
In Stock: 8
$341.52 / $85.38 per unit
(minimum purchase of 4)
Emerald Harvest Sturdy Stalk | 2.5gal
In Stock: 1
$81.12 $240.00 -66%
FoxFarm Bush Doctor Microbe Brew Microbial Inoculant 1-0.3-0.2 | 32oz - Concentrate
In Stock: 61
$36.20 $40.99 -12%
HDI MotherPlant Nutrients Part A | 1gal - (Case of 4)
In Stock: 24
$166.64 / $41.66 per unit
(minimum purchase of 4)
Down to Earth Fish Powder 12-1-1 | 5lb - (Case of 5)
In Stock: 86
$237.65 / $47.53 per unit
(minimum purchase of 5)
FoxFarm Grow Big Fertilizer 6-4-4 | 1gal - Concentrate
In Stock: 238
$88.76 $112.99 -21%
Biomin Copper | 2.5gal - OMRI Listed
Out of stock
$123.77 $124.16
Nectar for The Gods Bloom Khaos Foliar Spray 0-0-0.5 | 1gal
In Stock: 5
$313.24 / $78.31 per unit
(minimum purchase of 4)
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