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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 All Seasons Plant Food 20-20-20 Fertilizer - 1.5 lb
In Stock: 660
$126.36 / $10.53 per unit
(minimum purchase of 12)
Grow More Edda Iron Chelate 6% Fertilizer - 4 Oz
In Stock: 84
$76.56 / $6.38 per unit
(minimum purchase of 12)
Jack's Nutrients 10-30-20 Bloom Fertilizer - 2.2 lb
In Stock: 99
$21.90
Agriform 20-10-5 Planting Tablets Plus Minors - 21g Tablets - 500-Count
In Stock: 56
$93.50
Espoma Organic Iron-tone 3-0-3 Plant Food - 5 lb
In Stock: 120
$114.72 / $9.56 per unit
(minimum purchase of 12)
Ferti-lome Soil Acidifier Plus Iron Liquid Concentrate - 1 Gal
In Stock: 149
$97.04 / $24.26 per unit
(minimum purchase of 4)
Hi-Yield Ammonium Sulfate 21-0-0 Fertilizer - 16 lb
In Stock: 478
$14.05 $16.98 -17%
General Hydroponics Purpinator Anthocyanin and Terpene Enhancer - 55 Gal
In Stock: 20
$1,573.68 $2,242.15 -30%
Ferti-lome Fish Emulsion Fertilizer 5-1-1 Concentrate - 1 Gal
In Stock: 44
$119.28 / $29.82 per unit
(minimum purchase of 4)
Grow More Mendocino Amber Humic Fulvic Acid - 6 Gal
In Stock: 2
$113.61 $135.20 -16%
Osmocote Classic 14-14-14 Fertilizer - 3-4 Month - 50 lb
In Stock: 198
$128.63
Jack's Classic Blossom Booster 10-30-20 Water-Soluble Fertilizer - 8 Oz
In Stock: 1164
$86.16 / $7.18 per unit
(minimum purchase of 12)
Jack's Classic All-Purpose 20-20-20 Water-Soluble Fertilizer - 8 Oz
In Stock: 4496
$86.16 / $7.18 per unit
(minimum purchase of 12)
Cutting Edge Solutions Sour-Dee SP 0-0-24 Bloom Supplement - 20 lb
In Stock: 5
$500.05 $750.00 -33%
Hi-Yield Fast-Acting Gypsum Soil Amendment - 25 lb
In Stock: 108
$18.94 $22.98 -18%
Grow More Mendocino Avalanche Flower Hardener 0-0.15-0 - 1 Gal
In Stock: 3
$46.85 $54.52 -14%
Espoma Organic Plant-tone 5-3-3 Plant Food - 50 lb
In Stock: 141
$42.66 $45.39 -6%
Agriform 20-10-5 Planting Tablets Plus Minors - 10g Tablets - 1000-Count
In Stock: 15
$85.75
True Organic Blood Meal - 3 lb
In Stock: 895
$46.32 / $7.72 per unit
(minimum purchase of 6)
CYCO Platinum Series B1 Boost Plant Supplement 2-1-4 - 1 Gal
In Stock: 21
$53.31 $120.38 -56%
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