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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
10 months 3 days
Grand Rapids, US
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Nutrients & Supplements

FoxFarm® Bush Doctor® Kelp Me Kelp You® 0.5-0-0.5 — 1 gal Concentrate (OMRI Listed®)
In Stock: 33
$89.24 $98.99 -10%
Grow More® Mendocino Honey 0.46-0.26-1.86 — 2.5 gal
In Stock: 1
$52.69 $56.28 -6%
Grow More® Sea Grow Bloom & Flower 4-26-26 — 25 lb
In Stock: 174
$155.43 $155.99
Down to Earth™ Granular Root Zone Beneficial Organisms — 2oz / OMRI Listed®
In Stock: 86
$232.08 / $9.67 per unit
(minimum purchase of 24)
Crown Jewels® Bloom 1-4-2 1lb
In Stock: 390
$162.60 / $5.42 per unit
(minimum purchase of 30)
Grow More® Mendocino Producer's Choice Vegetative 03-06-22 — 25 lb
In Stock: 39
$70.52 $74.83 -6%
Grow More® Mendocino Producer's Choice Base 14.5-0-0 — 25 lb
In Stock: 80
$70.52 $74.83 -6%
Grow More® Grow-vite 16-4-2 — 1 gal Concentrate
In Stock: 64
$81.76 / $20.44 per unit
(minimum purchase of 4)
CYCO™ Platinum Series Silica 0-0-3 — 32 oz
In Stock: 13
$16.06 $25.23 -36%
General Hydroponics TrueFlo™ Irrigation Line Cleaner 55gal
In Stock: 13
$615.77 $1,050.00 -41%
Grow More® Mendocino Producer's Choice Crystallizer 05-10-40 Soluble — 25 lb
In Stock: 69
$74.76 $85.07 -12%
Crown Jewels® Imperial Boost 0-15-11 1lb
In Stock: 480
$162.60 / $5.42 per unit
(minimum purchase of 30)
Grow More® Mendocino Producer's Choice Bloom 01-10-18 — 25 lb
In Stock: 77
$70.52 $74.83 -6%
FoxFarm® Bush Doctor® Wholly Mackerel® Fertilizer 3-1-0 — 1 gal Concentrate
In Stock: 86
$88.89 $108.99 -18%
Cutting Edge Uncle John's Blend SP™ 4-0-27 — 5lb
In Stock: 18
$317.16 $399.60 -21%
Grow More® Sea Grow Bloom & Flower 4-26-26 — 1.5 lb
In Stock: 384
$180.48 / $15.04 per unit
(minimum purchase of 12)
Grow More® Hawaiian Bud 5-50-17 — 1.5 lb
In Stock: 17
$12.36 $14.02 -12%
SUPERthrive® ZYME™ 100% Enzyme Cleaner — 1 gal
In Stock: 40
$465.60 / $116.40 per unit
(minimum purchase of 4)
King Crab® Premium Beneficial Bacteria 32oz
In Stock: 22
$328.98 / $54.83 per unit
(minimum purchase of 6)
CYCO™ Platinum Series Silica 0-0-3 — 5 gal
In Stock: 25
$138.92 $237.08 -41%
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