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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 Grow Big Hydroponic Fertilizer 3-2-6 - 32 Oz - Concentrate
In Stock: 392
$401.04 / $33.42 per unit
(minimum purchase of 12)
Microbe Life Hydroponics Nourish-L Liquid Fertilizer - 16 Oz
In Stock: 84
$242.76 / $20.23 per unit
(minimum purchase of 12)
Biomin Iron Micronutrient Supplement - 2.5 Gal - OMRI Listed
In Stock: 9
$128.53
Down To Earth Solution Grade Gypsum Organic Soil Amendment - 5 lb - OMRI Listed
Out of stock
$20.85 / $4.17 per unit
(minimum purchase of 5)
FoxFarm Beastie Bloomz Fertilizer 0-50-30 - 6 Oz
In Stock: 707
$274.08 / $22.84 per unit
(minimum purchase of 12)
HDI Ionic PK BOOST Plant Nutrient 0-5-6 | 2.5gal - (Case of 2)
In Stock: 22
$68.64 / $34.32 per unit
(minimum purchase of 2)
FoxFarm Cultivation Nation Micro Fertilizer 5-0-1 - 16 Oz
In Stock: 100
$188.28 / $15.69 per unit
(minimum purchase of 12)
HDI Clonex Rooting Gel - 100 mL Wide Mouth Bottle
Out of stock
$205.80 / $17.15 per unit
(minimum purchase of 12)
Royal Gold Crown Jewels Bloom Fertilizer 1-4-2 - 10 lb
In Stock: 24
$138.68 / $34.67 per unit
(minimum purchase of 4)
Nectar for the Gods Olympus Up pH Up Supplement - 2.5 Gal
In Stock: 6
$139.26 / $69.63 per unit
(minimum purchase of 2)
Sipco Hyclean Non-Toxic Line and Equipment Cleaner for Irrigation Systems - 4 L
In Stock: 53
$342.08 / $85.52 per unit
(minimum purchase of 4)
Neptune's Harvest Kelp Meal Multi-Purpose Plant Food 1-0-2 - 4 lb - OMRI Listed
In Stock: 74
$155.94 / $25.99 per unit
(minimum purchase of 6)
MICROBE Life Hydroponics Photosynthesis Plus | 1gal - (Case of 4)
In Stock: 11
$291.32 / $72.83 per unit
(minimum purchase of 4)
Dip 'N Grow Rooting Hormone - 16 Oz
In Stock: 18
$64.72
HDI Ionic Grow Plant Nutrient 3-1-5 - 5 Gal
In Stock: 50
$150.94 $188.03 -20%
BioAg Bio-SuperSil 0-0-0 Soluble Silicon Supplement - 2.5 Gal
In Stock: 41
$151.87 $202.72 -25%
Down To Earth Rose & Flower Mix 4-8-4 Fertilizer - 3-Pack of 5 lb
In Stock: 193
$31.03 $42.19 -26%
General Hydroponics Ripen 0.5-7-6 Bloom Supplement - 32 Oz
In Stock: 170
$28.15 $43.29 -35%
Nectar for the Gods Poseidonzime Foliar Spray 0-0-0.5 - 32 Oz
In Stock: 15
$19.15 $23.99 -20%
Down To Earth Fish Powder 12-1-1 Fertilizer - 5 lb
In Stock: 76
$237.65 / $47.53 per unit
(minimum purchase of 5)
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