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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...
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10 months 3 days
Grand Rapids, US
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Nutrients & Supplements

Great White Granular 1 Mycorrhizal | 4oz - OMRI Listed - (Case of 24)
In Stock: 173
$122.64 / $5.11 per unit
(minimum purchase of 24)
Down to Earth Garden Gypsum | 5lb - OMRI Listed - (Case of 6)
In Stock: 138
$70.14 / $11.69 per unit
(minimum purchase of 6)
Botanicare Pure Blend Pro Bloom Formula 2-3-5 - 2.5gal
In Stock: 37
$77.28 $174.46 -56%
Down to Earth Kelp Meal 1-0.1-2 | 4lb - OMRI Listed
In Stock: 616
$139.56 / $23.26 per unit
(minimum purchase of 6)
HDI Clonex Clone Solution | 20ml - (Case of 18)
In Stock: 1210
$25.02 / $1.39 per unit
(minimum purchase of 18)
Botanicare Liquid Karma 0.1-0.1-0.5 - 2.5gal
In Stock: 74
$96.07 $216.57 -56%
True Organic Liquid Tomato & Vegetable Food 3-2-3 | 16oz - Concentrate - Use Every Two Weeks - Covers up to 30sq ft - OMRI Listed - (Case of 6)
In Stock: 324
$36.72 / $6.12 per unit
(minimum purchase of 6)
Roots Organics HPK | 32oz
In Stock: 15
$11.88 $19.99 -41%
Down to Earth Bat Guano 7-3-1 | 0.25lb - OMRI Listed - (Case of 12)
In Stock: 72
$43.80 / $3.65 per unit
(minimum purchase of 12)
Xtreme Gardening Mykos Root Paks | 50ct - (Case of 6)
In Stock: 6
$89.52 / $14.92 per unit
(minimum purchase of 6)
Xtreme Gardening Tea Brews | 10ct - (Case of 6)
In Stock: 6
$346.02 / $57.67 per unit
(minimum purchase of 6)
FoxFarm Cultivation Nation Cal-Mag | 16oz
In Stock: 84
$103.56 / $8.63 per unit
(minimum purchase of 12)
Plant Success Organics Soluble 0.5-0.1-7 | 1lb
In Stock: 102
$55.67 $69.76 -20%
MICROBE Life Hydroponics Foliar Spray & Root Dip | 16oz - (Case of 12)
In Stock: 61
$227.16 / $18.93 per unit
(minimum purchase of 12)
Neptune's Harvest Fish Fertilizer 2-4-1 | 1gal - Concentrate - OMRI Listed - (Case of 4)
In Stock: 163
$157.40 / $39.35 per unit
(minimum purchase of 4)
Down to Earth Blood Meal 12-0-0 | 4lb - OMRI Listed - (Case of 6)
In Stock: 1038
$93.00 / $15.50 per unit
(minimum purchase of 6)
Maxicrop Soluble Seaweed Powder 0-0-17 | 10.7oz - OMRI Listed - (Case of 12)
In Stock: 592
$254.16 / $21.18 per unit
(minimum purchase of 12)
Down to Earth All-Purpose Mix 4-6-2 | 1lb - OMRI Listed - (Case of 12)
In Stock: 1488
$46.20 / $3.85 per unit
(minimum purchase of 12)
Down to Earth Seabird Guano 0-11-0 | 40lb - OMRI Listed
In Stock: 244
$66.91 $131.99 -49%
Down to Earth AZOMITE Slow Release Powder | 5lb - OMRI Listed - (Case of 6)
In Stock: 204
$54.54 / $9.09 per unit
(minimum purchase of 6)
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