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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

General Hydroponics CALiMAGic 1-0-0 Cal-Mag Supplement - 1 Gal
In Stock: 294
$43.25 $67.34 -36%
General Hydroponics MaxiGro 10-5-14 Base Nutrient Powder - 2.2 lb
In Stock: 109
$14.70 $23.02 -36%
Mother Earth Farmer's Market All Purpose Mix 4-5-4 Granular Fertilizer - 4.4 lb
In Stock: 65
$10.00 $16.88 -41%
General Hydroponics FloraNova Bloom 4-8-7 Base Nutrient - 32 Oz
In Stock: 308
$25.04 $38.94 -36%
CYCO Platinum Series Potash Plus Potassium Supplement 0-4-6 - 5 L
In Stock: 14
$68.04 / $34.02 per unit
(minimum purchase of 2)
Mother Earth LiquiCraft Bloom 2-4-4 Liquid Fertilizer - 32 Oz
In Stock: 17
$17.72 $27.53 -36%
Coast of Maine Quoddy Blend Organic Lobster Compost - 1 cu ft - OMRI Listed
In Stock: 392
$84.70 / $16.94 per unit
(minimum purchase of 5)
General Hydroponics Floralicious Plus 2-0.8-0.5 Nutrient Supplement - 55 Gal
In Stock: 13
$5,870.07 $13,249.01 -56%
Down To Earth Bat Guano 7-3-1 Organic Fertilizer - 25 lb - OMRI Listed
In Stock: 103
$77.62 $99.99 -22%
General Hydroponics MaxiBloom 5-15-14 Base Nutrient Powder - 50 lb
In Stock: 35
$273.22 $467.66 -42%
General Hydroponics FloraBloom 0-5-4 Base Nutrient - 32 Oz
In Stock: 810
$11.69 $18.29 -36%
General Hydroponics FloraGro 2-1-6 Base Nutrient - 1 Gal
In Stock: 101
$27.63 $43.37 -36%
Down To Earth Granular Humic Acids Organic Soil Amendment - 50 lb - OMRI Listed
In Stock: 78
$45.59 $67.19 -32%
General Hydroponics Liquid KoolBloom 0-10-10 Bloom Supplement - 32 Oz
In Stock: 31
$20.85 $32.29 -35%
CYCO Commercial Series Bloom Powder Fertilizer 8-6-11 - 5 kg
In Stock: 4
$122.51 $276.59 -56%
General Hydroponics Floralicious Plus 2-0.8-0.5 Nutrient Supplement - 16 Oz
In Stock: 40
$30.16 $46.91 -36%
CYCO Platinum Series Swell Bloom Supplement 1-5-3 - 5 L
In Stock: 18
$123.16 / $61.58 per unit
(minimum purchase of 2)
GH General Organics BioBud 0.5-0.1-1 Bloom Supplement - 2.5 Gal
In Stock: 82
$246.44 $554.83 -56%
General Hydroponics FloraMicro 5-0-1 Base Nutrient - 16 Oz
In Stock: 395
$7.71 $17.30 -55%
General Hydroponics FloraPro Late Bloom 0-24-26 Powder Bloom Nutrient - 5 lb
In Stock: 15
$30.07 $45.48 -34%
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