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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

Grow More Sea Grow All Purpose Fertilizer 16-16-16 - 3 lb
Out of stock
$245.04 / $20.42 per unit
(minimum purchase of 12)
Royal Gold Crown Jewels All Purpose Fertilizer 5-5-5 + Calcium - 1 lb - OMRI Listed & CDFA Approved
In Stock: 420
$142.20 / $4.74 per unit
(minimum purchase of 30)
Brandt Sequestar Iron Chelate 6% Fe EDDHA - 5 lb
In Stock: 114
$86.58
Grow More Mendocino Amber Humic Fulvic Acid - 2.5 Gal
In Stock: 1
$44.31 $54.28 -18%
Down To Earth Bio-Turf 8-3-5 Natural Granular Fertilizer - 4 lb - OMRI Listed
Out of stock
$86.04 / $14.34 per unit
(minimum purchase of 6)
Brandt Manganese Sulfate 31% EDTA Micronutrient Supplement - 50 lb - Powder
In Stock: 8
$129.10
General Hydroponics TrueFlo Irrigation Line Cleaner - 32 Oz
In Stock: 70
$14.16 $20.00 -29%
Grow More Water Soluble Fertilizer 10-52-10 - 25 lb
In Stock: 218
$123.74 $125.99 -2%
Down To Earth Shrimp Meal 6-6-0 Organic Fertilizer - 15 lb - OMRI Listed
In Stock: 22
$43.21 $56.69 -24%
Malibu Compost Bu's Blend Biodynamic Compost - 12 Qt
In Stock: 609
$13.99 $17.89 -22%
Reefertilizer Bloom Fertilizer 5-30-20 - 750 mL
In Stock: 6
$24.74 $27.95 -11%
CYCO Platinum Series Grow Part B Base Nutrient 2-2-6 - 1 Gal
In Stock: 18
$16.00 $32.04 -50%
Grow More Mendocino Honey Carbohydrate Supplement 0.46-0.26-1.86 - 32 Oz
In Stock: 30
$9.20 $10.83 -15%
Royal Gold Crown Jewels Bloom Fertilizer 1-4-2 - 1 lb - OMRI Listed & CDFA Approved
In Stock: 119
$166.50 / $5.55 per unit
(minimum purchase of 30)
General Hydroponics TrueFlo Irrigation Line Cleaner - 1 Gal
In Stock: 473
$19.28 $38.00 -49%
Grow More Standard Fertilizer 05-10-40 - 25 lb
In Stock: 21
$70.08 $82.32 -15%
Cutting Edge Solutions Sugaree SP 0-0-24 Bloom Supplement - 5 lb
In Stock: 1
$180.79 $222.00 -19%
Espoma Organic Bio-tone Starter Plus 4-3-3 Plant Food Plus Mycorrhizae - 5 Oz Single-Use Dose Packet
In Stock: 367
$39.60 / $1.98 per unit
(minimum purchase of 20)
General Hydroponics Terpinator Terpene and Resin Enhancer - 1 Gal
In Stock: 9
$62.04 $78.35 -21%
Espoma Organic Plant-tone 5-3-3 Plant Food - 8 lb
In Stock: 102
$67.80 / $11.30 per unit
(minimum purchase of 6)
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