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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...
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10 months 3 days
Grand Rapids, US
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Nutrients & Supplements

Peters Excel 15-5-15 Cal-Mag Special Fertilizer with Black Iron | 25lb (80/PL)
In Stock: 299
$54.90 $63.68 -14%
Peters Professional 20–10–20 Peat–Lite Fertilizer | 25lb (80/PL)
In Stock: 4
$55.34 $65.47 -15%
Peters Professional 21-7-7 Acid Special Fertilizer | 25lb (80/PL)
In Stock: 137
$45.68 $52.64 -13%
Peters Professional 22-5-16 Mum Special Black Iron | 25lb (80/PL)
Out of stock
$51.83 $60.02 -14%
Peters Professional 10-30-20 "Bloom Booster" Fertilizer | 25lb (80/PL)
In Stock: 59
$61.93 $71.58 -13%
Peters Professional 5-11-26 Hydroponic Special Fertilizer | 25lb
In Stock: 1376
$62.37 $71.58 -13%
Peters Professional Hydroponic Finisher 0-15-30 | 25lb
In Stock: 312
$74.23 $85.26 -13%
Peters Professional 14-0-8 Hydroponic Boost | 25lb - Base Formulation
In Stock: 541
$50.95 $58.43 -13%
Agriform 20-10-5 Planting Tablets Plus Minors | 21g Tablets - 500ct
In Stock: 74
$90.04 $103.17 -13%
Osmocote Bloom 12-7-18 2-3mo. Fertilizer | 50lb (40/PL)
In Stock: 89
$167.34 $192.11 -13%
Osmocote Blend 19-5-8 8-9mo. Fertilizer | 50lb (40/PL)
In Stock: 45
$120.34 $139.47 -14%
Osmocote Blend 22-3-8 5-6mo. Fertilizer Enhanced with QuickStart Nutrients | 50lb (40/PL)
In Stock: 99
$93.12 $107.90 -14%
Osmocote Blend 23-4-8 8-9mo. Fertilizer Enhanced with both E-Max Technology & QuickStart | 50lb (40/PL)
In Stock: 108
$93.12 $107.90 -14%
Osmocote Plus 15-8-11 Tablets Plus Minors | 7.5g Tablets - 1000ct
In Stock: 83
$123.86 $142.11 -13%
Florikan Gal-XeOne 16-5-11 NANO Advantage Fertilizer - 90 Day Release | 50lb (40/PL)
In Stock: 31
$184.17
Florikan Sapphire Aluminum Sulfate | 50lb (40/PL)
In Stock: 38
$157.08
Florikan Max Micronutrients | 50lb (40/PL)
In Stock: 46
$200.42
GreenGro Biologicals Nature's Brix 0-0-2 | 2lb - (Case of 10)
In Stock: 99
$193.40 / $19.34 per unit
(minimum purchase of 10)
GreenGro Biologicals Nature's Brix 0-0-2 | 5lb - (Case of 8)
In Stock: 72
$396.56 / $49.57 per unit
(minimum purchase of 8)
GreenGro Biologicals Earthshine Biochar Blend | 5lb - (Case of 4)
In Stock: 136
$123.08 / $30.77 per unit
(minimum purchase of 4)
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