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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

True Organic Rose & Flower Food - 4 lb
In Stock: 749
$63.42 / $10.57 per unit
(minimum purchase of 6)
Big Foot Root Boost Nitrogen-Fixing Azospirillum - 5 Oz
In Stock: 23
$130.20 / $13.02 per unit
(minimum purchase of 10)
MICROBE Life Hydroponics Photosynthesis Plus | 32oz
In Stock: 12
$320.76 / $26.73 per unit
(minimum purchase of 12)
GH General Organics BioThrive Bloom 2-4-4 Base Nutrient - 32 Oz
In Stock: 173
$17.19 $25.28 -32%
Dip 'N Grow Rooting Hormone - 1 Gal
In Stock: 29
$378.79
FoxFarm Cultivation Nation Grow Fertilizer 2-1-6 - 16 Oz
In Stock: 144
$151.32 / $12.61 per unit
(minimum purchase of 12)
Plant Success Organics Soluble Mycorrhizae 0.5-0.1-7 - 5 lb - OMRI Listed
In Stock: 18
$181.60 $296.51 -39%
FoxFarm Cultivation Nation pH Up Nutrient Solution Adjuster - 32 Oz
In Stock: 264
$300.00 / $25.00 per unit
(minimum purchase of 12)
HDI Ionic Bloom Plant Nutrient 3-2-6 - 32 Oz
In Stock: 24
$212.28 / $17.69 per unit
(minimum purchase of 12)
Down To Earth Kelp Meal 1-0.1-2 Organic Fertilizer - 50 lb - OMRI Listed
In Stock: 63
$239.14 $321.09 -26%
FoxFarm Happy Frog Jump Start Fertilizer 3-4-3 - 4 lb - OMRI Listed
In Stock: 336
$156.36 / $13.03 per unit
(minimum purchase of 12)
BioAg Ful-Power Fulvic Acid Supplement - 5 Gal - OMRI Listed
Out of stock
$125.53 $163.69 -23%
Plant Success Great White Premium Mycorrhizae Concentrate - 8 Oz
Out of stock
$64.95 $81.24 -20%
Sustane 8-2-4 Lawn & Landscape Plant Food - 5 lb - OMRI Listed
In Stock: 16
$110.64 / $13.83 per unit
(minimum purchase of 8)
Royal Gold Crown Jewels Grow Fertilizer 3-2-2 - 20 lb
In Stock: 60
$139.56 / $69.78 per unit
(minimum purchase of 2)
Big Foot Root Boost Nitrogen-Fixing Azospirillum - 32 Oz
In Stock: 13
$49.42 $68.59 -28%
BioAg Ful-Power Fulvic Acid Supplement - 2.5 Gal - OMRI Listed
In Stock: 1
$62.78 $81.85 -23%
Roots Organics HP2 Phos Rock 0-4-0 - 32 Oz Concentrate
In Stock: 9
$9.92 $17.99 -45%
FoxFarm Big Bloom Fertilizer 0-0.5-0.7 - 2.5 Gal - Concentrate - OMRI Listed
In Stock: 24
$352.66 / $176.33 per unit
(minimum purchase of 2)
Down To Earth Vegetable Garden 4-4-4 Fertilizer - 3-Pack of 5 lb
In Stock: 152
$32.15 $42.09 -24%
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