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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 Foliage Water Soluble Fertilizer 24-8-16 - 25 lb
In Stock: 41
$53.51
Grow More Seaweed Extract 0.10-0-0.44 Fertilizer - 32 Oz
In Stock: 108
$147.60 / $12.30 per unit
(minimum purchase of 12)
Soil Mender Kelp Meal - 5 lb
In Stock: 67
$260.72 / $32.59 per unit
(minimum purchase of 8)
Plant-Prod Mono Potassium Phosphate 0-52-34 Fertilizer - 55 lb
In Stock: 196
$155.27
Osmocote Blend 23-4-8 Fertilizer Enhanced with E-Max Technology & QuickStart - 8-9 Month - 50 lb
In Stock: 53
$96.70
Syngenta Bonzi Plant Growth Regulator - 1 Qt
In Stock: 10
$293.33
Grower Select Cal-Mag Triple Iron Fertilizer 16-3-16 - 25 lb
In Stock: 18
$44.62
Plantex Solutions Complete Plus Water Soluble Fertilizer 19-8-13 - 25 lb
In Stock: 17
$62.59
Big Foot Mycorrhizae Concentrate Water-In-Root Inoculum - 50 lb
In Stock: 4
$1,155.72 $2,099.99 -45%
Osmocote Blend 19-6-9 Fertilizer with Fusion Technology - 5-6 Month - 50 lb
In Stock: 265
$136.03
Osmocote Classic 18-6-12 Fertilizer - 8-9 Month - 50 lb
In Stock: 40
$134.68
Peters S.T.E.M. Fertilizer - 2.64 Gal
In Stock: 124
$176.60
Biomin Molybdenum Micronutrient Supplement - 2.5 Gal
In Stock: 7
$263.30
Osmocote Plus 15-9-12 Fertilizer - 12-14 Month - 50 lb
In Stock: 25
$139.59
Grow More Edda Iron Chelate 6% Fertilizer - 1 lb
Out of stock
$231.24 / $19.27 per unit
(minimum purchase of 12)
Cutting Edge Solutions Grow 2-1-6 Base Nutrient - 32 Oz
In Stock: 16
$14.36 $15.99 -10%
Plantex Classic Water Soluble Fertilizer 20-20-20 - 25 lb
In Stock: 9
$57.56
Jack's Nutrients 10-30-20 Bloom Fertilizer - 25 lb
In Stock: 171
$107.64
Reefertilizer Start Soil Conditioner - 500 mL
In Stock: 27
$21.92 $31.95 -31%
Osmocote Plus 15-9-12 Fertilizer - 8-9 Month - 50 lb
In Stock: 70
$138.69
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