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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

Ferti-lome Chelated Iron and Other Micro Nutrients Liquid Fertilizer - 1 Gal
In Stock: 34
$85.68 / $21.42 per unit
(minimum purchase of 4)
Grow More Grow-Vite Fertilizer Concentrate 16-4-2 - 1 Gal
Out of stock
$81.76 / $20.44 per unit
(minimum purchase of 4)
Espoma Organic Flower-tone 3-4-5 Plant Food - 4 lb
In Stock: 484
$91.56 / $7.63 per unit
(minimum purchase of 12)
Grow More Mendocino Producer's Choice Hydro Fertilizer 05-11-26 - 25 lb
In Stock: 77
$73.05 $87.72 -17%
Grow More Mendocino Producer's Choice Base Fertilizer 14.5-0-0 - 25 lb
In Stock: 80
$71.61 $74.83 -4%
Down To Earth Liquid Fish & Kelp 2-4-1 Organic Fertilizer - 1 Gal - OMRI Listed
Out of stock
$151.32 / $37.83 per unit
(minimum purchase of 4)
CYCO Platinum Series Potash Plus Potassium Supplement 0-4-6 - 32 Oz
In Stock: 60
$11.35 $26.04 -56%
Grow More Cactus Juice 1-7-6 Fertilizer - 16 Oz
In Stock: 38
$73.20 / $6.10 per unit
(minimum purchase of 12)
King Crab® Premium Beneficial Bacteria 32oz
Out of stock
$328.98 / $54.83 per unit
(minimum purchase of 6)
Grow More Flowering Cal-Mag Supplement - 2.5 Gal
In Stock: 7
$91.92 $109.12 -16%
Espoma Organic Alfalfa Meal - 3 lb
In Stock: 36
$92.16 / $7.68 per unit
(minimum purchase of 12)
CYCO Platinum Series Silica Supplement 0-0-3 - 5 Gal
In Stock: 25
$138.92 $237.08 -41%
Detroit Nutrient Company Vermicompost Worm Castings - 25 lb
In Stock: 198
$34.22 $42.99 -20%
Dave Thompson's Organic Healthy Grow Gold Corn Gluten 9-0-0 | 30lb - Bag
In Stock: 144
$69.28 $76.29 -9%
Plant-Prod MJ Boost Fertilizer 15-30-15 - 25 lb
In Stock: 43
$25.00
Micromax Micronutrients Fertilizer - 50 lb
In Stock: 40
$125.43
Grow More Mendocino Producer's Choice Vegetative Fertilizer 03-06-22 - 25 lb
In Stock: 39
$71.61 $74.83 -4%
Brandt Sequestar Iron Chelate 6% Fe EDDHA - 25 lb - Water Soluble
In Stock: 5
$361.35
Coast of Maine Stonington Blend Aeration Formula 0.2-0.1-0.0 - 1.5 cu ft - 70/30 Coco Coir and Perlite Mix
In Stock: 45
$157.70 / $31.54 per unit
(minimum purchase of 5)
Yum Yum Mix Organic Fertilizer 2-1-1 - 5 lb - Stand Up Bag
In Stock: 15
$163.20 / $20.40 per unit
(minimum purchase of 8)
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