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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
1 year
Grand Rapids, US
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Nutrients & Supplements

Biomin Copper Micronutrient Supplement - 2.5 Gal - OMRI Listed
Out of stock
$128.53
BioAg Ful-Humix Humic Acid Concentrate - 300 g - OMRI Listed
In Stock: 36
$300.96 / $25.08 per unit
(minimum purchase of 12)
HDI MotherPlant Nutrients Part B - 2.5 Gal
In Stock: 14
$163.48 / $81.74 per unit
(minimum purchase of 2)
Emerald Harvest pH Down Adjuster - 55 Gal
In Stock: 5
$1,163.26 $2,750.00 -58%
HDI Ionic PK Boost Plant Nutrient 0-5-6 - 1 Gal
In Stock: 204
$159.08 / $39.77 per unit
(minimum purchase of 4)
FoxFarm Bush Doctor Kelp Me Kelp You Kelp Supplement 0.5-0-0.5 - 32 Oz - Concentrate - OMRI Listed
In Stock: 60
$30.49 $37.09 -18%
Emerald Harvest Bloom 0-5-4 Base Nutrient - 1 Gal
In Stock: 16
$98.32 / $24.58 per unit
(minimum purchase of 4)
Nectar for the Gods Hades Down pH Down Supplement 0-1-0 - 32 Oz
In Stock: 45
$17.87 $21.99 -19%
Nectar for the Gods Persephone's Palate Nutrient Supplement - 2.5 Gal
In Stock: 14
$107.76 / $53.88 per unit
(minimum purchase of 2)
FoxFarm Grow Big Hydroponic Fertilizer 3-2-6 - 5 Gal - Concentrate
In Stock: 2
$459.99
FoxFarm Open Sesame Soluble Fertilizer 5-45-19 - 15 lb Jar
In Stock: 80
$251.82 $281.59 -11%
Sipco Hyclean Non-Toxic Line and Equipment Cleaner for Irrigation Systems - 20 L
In Stock: 134
$385.74 $389.24 -1%
FoxFarm Open Sesame Soluble Fertilizer 5-45-19 - 1 lb Jar
In Stock: 28
$51.06 $55.89 -9%
Nectar for the Gods Pegasus Potion Feather Tea 1-2-0 - 5 Gal
In Stock: 8
$68.99 $172.99 -60%
FoxFarm Bush Doctor Microbe Brew Microbial Inoculant 1-0.3-0.2 - 1 Gal
In Stock: 3
$151.99
Nectar for the Gods Aphrodite's Extraction Carbon 0-1-0 - 2.5 Gal
In Stock: 9
$213.98 / $106.99 per unit
(minimum purchase of 2)
Emerald Harvest pH Up Adjuster - 32 Oz
In Stock: 31
$19.13 $25.50 -25%
Emerald Harvest Root Wizard Root Builder - 32 Oz (FL, MN, NC, OK Label)
In Stock: 28
$33.21 $96.00 -65%
FoxFarm Big Bloom Fertilizer 0-0.5-0.7 - 5 Gal - Concentrate - OMRI Listed
In Stock: 25
$327.54 $362.49 -10%
Emerald Harvest Cali Pro Bloom A 3-0-3 Base Nutrient - 32 Oz
In Stock: 8
$12.31 $17.00 -28%
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