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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

Plantex High Phosphate Water Soluble Fertilizer 10-52-10 - 25 lb
In Stock: 66
$41.05
Jack's Classic All-Purpose 20-20-20 Water-Soluble Fertilizer - 10 lb
In Stock: 79
$47.32 $58.79 -20%
Maxicrop Liquid Seaweed Plus 2% Iron 0-0-1 - 32 Oz
In Stock: 59
$173.88 / $14.49 per unit
(minimum purchase of 12)
Down To Earth Liquid Fish & Kelp 2-4-1 Organic Fertilizer - 1 Gal - OMRI Listed
Out of stock
$159.48 / $39.87 per unit
(minimum purchase of 4)
Grow More Mendocino Avalanche Flower Hardener 0-0.15-0 - 2.5 Gal
In Stock: 2
$107.12 $122.57 -13%
Grower Select Fertilizer 20-10-20 - 25 lb
In Stock: 28
$50.09
Agriform 20-10-5 Planting Tablets Plus Minors - 10g Tablets - 1000-Count
Out of stock
$85.75
Jack's Nutrients 15-0-0 Calcium Nitrate Part B Fertilizer - 2.2 lb
In Stock: 30
$17.31
CYCO Platinum Series Silica Supplement 0-0-3 - 5 Gal
In Stock: 21
$148.73 $237.08 -37%
King Crab® Premium Beneficial Bacteria 32oz
Out of stock
$339.06 / $56.51 per unit
(minimum purchase of 6)
Jack's Professional Epsom Salt (Magnesium Sulfate) - 2.2 lb
In Stock: 6
$20.18
Cutting Edge Solutions Sour-Dee SP 0-0-24 Bloom Supplement - 20 lb
In Stock: 3
$525.04 $750.00 -30%
Jack's Classic All-Purpose 20-20-20 Water-Soluble Fertilizer - 1.5 lb
Out of stock
$146.52 / $12.21 per unit
(minimum purchase of 12)
CYCO Platinum Series Ryzofuel Root Stimulator 0-0-0.2 - 32 Oz
In Stock: 36
$29.10 $58.55 -50%
Jack's Professional 20-3-19 Petunia FeED Fertilizer - 25 lb
In Stock: 10
$56.93
Osmocote Plus 15-9-12 Fertilizer - 5-6 Month - 50 lb
In Stock: 89
$136.03
CYCO Platinum Series Dr. Repair Supplement 3-0-0 - 1 Gal
In Stock: 14
$43.38 $64.17 -32%
Osmocote Plus 15-9-12 Fertilizer - 3-4 Month - 50 lb
In Stock: 34
$134.68
Plant-Prod Chelated Iron 11% DTPA - 5 lb
In Stock: 21
$110.40
Grow More Mendocino Amber Humic Fulvic Acid - 6 Gal
In Stock: 2
$115.77 $135.20 -14%
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