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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

FoxFarm Bush Doctor Sledgehammer Nutrient Rinse - 32 Oz - OMRI Listed
In Stock: 294
$34.14 $35.89 -5%
Down To Earth All-Purpose Mix 4-6-2 Fertilizer - 3-Pack of 5 lb - OMRI Listed
In Stock: 76
$32.15 $42.09 -24%
Royal Gold Crown Jewels Bloom Fertilizer 1-4-2 - 20 lb
In Stock: 30
$152.44 / $76.22 per unit
(minimum purchase of 2)
BioAg Bio-SuperSil 0-0-0 Soluble Silicon Supplement - 1 Gal
In Stock: 4
$351.12 / $87.78 per unit
(minimum purchase of 4)
FoxFarm Bush Doctor Sledgehammer Nutrient Rinse - 1 Gal - OMRI Listed
In Stock: 72
$471.76 / $117.94 per unit
(minimum purchase of 4)
Emerald Harvest Kick-Starter Kit - Cali Pro 2-Part Base Nutrient Kit - 32 Oz Each
In Stock: 13
$206.04 $220.00 -6%
HDI MotherPlant Nutrients Part A - 32 Oz
In Stock: 72
$185.52 / $15.46 per unit
(minimum purchase of 12)
FoxFarm Beastie Bloomz Fertilizer 0-50-30 - 2 lb
In Stock: 92
$100.16 $103.19 -3%
FoxFarm Grow Big Fertilizer 6-4-4 - 1 Gal - Concentrate
In Stock: 9
$95.91 $118.69 -19%
SuperThrive Vitamin Solution Fertilizer - 1 Gal - Concentrate
Out of stock
$223.43 $229.09 -2%
Nectar for the Gods Pegasus Potion Feather Tea 1-2-0 - 1 Gal
In Stock: 36
$77.76 / $19.44 per unit
(minimum purchase of 4)
FoxFarm Grow Big Fertilizer 6-4-4 - 32 Oz - Concentrate
In Stock: 133
$351.36 / $29.28 per unit
(minimum purchase of 12)
Nectar for the Gods Hades Down pH Down Supplement 0-1-0 - 2.5 Gal
In Stock: 24
$116.44 / $58.22 per unit
(minimum purchase of 2)
FoxFarm Bush Doctor Cal-Mag Supplement 1-0-0 - 1 Gal - OMRI Listed
In Stock: 35
$399.60 / $99.90 per unit
(minimum purchase of 4)
HDI Clonex Mist Root Promoter - 300 mL
In Stock: 10
$136.02 / $22.67 per unit
(minimum purchase of 6)
Nectar for the Gods Demeter's Destiny Liquid Calcium 0-0.5-0 - 32 Oz
In Stock: 22
$17.87 $21.99 -19%
HDI Ionic PK Boost Plant Nutrient 0-5-6 - 32 Oz
In Stock: 20
$212.28 / $17.69 per unit
(minimum purchase of 12)
Nectar for the Gods Pegasus Potion Feather Tea 1-2-0 - 32 Oz
In Stock: 37
$13.33 $15.99 -17%
Roots Organics Uprising Grow 6-1-2 Granular Fertilizer - 3 lb
In Stock: 12
$20.04 / $6.68 per unit
(minimum purchase of 3)
FoxFarm Bush Doctor Microbe Brew Microbial Inoculant 1-0.3-0.2 - 32 Oz - Concentrate
In Stock: 19
$38.69 $43.29 -11%
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