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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

Big Foot Root Boost Nitrogen-Fixing Azospirillum - 5 Oz
In Stock: 23
$122.20 / $12.22 per unit
(minimum purchase of 10)
Neptune's Harvest Seaweed Plant Food 0-0-1 - 1 Gal Concentrate - OMRI Listed
In Stock: 70
$174.52 / $43.63 per unit
(minimum purchase of 4)
FoxFarm Cultivation Nation Grow Fertilizer 2-1-6 - 16 Oz
In Stock: 156
$148.68 / $12.39 per unit
(minimum purchase of 12)
Plant Success Organics Soluble Mycorrhizae 0.5-0.1-7 - 5 lb - OMRI Listed
In Stock: 18
$168.83 $296.51 -43%
Microbe Life Hydroponics Vegetable & Fruit Yield Enhancer - 16 Oz
In Stock: 48
$227.16 / $18.93 per unit
(minimum purchase of 12)
HDI Ionic Grow Plant Nutrient 3-1-5 - 1 Gal
In Stock: 4
$155.28 / $38.82 per unit
(minimum purchase of 4)
Down To Earth Bone Meal 3-15-0 Organic Fertilizer - 5 lb - OMRI Listed
In Stock: 420
$81.30 / $13.55 per unit
(minimum purchase of 6)
Dip 'N Grow Rooting Hormone - 1 Gal
In Stock: 29
$378.79
HDI Ionic Bloom Plant Nutrient 3-2-6 - 32 Oz
In Stock: 32
$207.12 / $17.26 per unit
(minimum purchase of 12)
Emerald Harvest Bloom 0-5-4 Base Nutrient - 32 Oz
In Stock: 3
$9.37 $14.00 -33%
BioAg Ful-Power Fulvic Acid Supplement - 5 Gal - OMRI Listed
In Stock: 4
$121.29 $163.69 -26%
Plant Success Great White Premium Mycorrhizae Concentrate - 8 Oz
In Stock: 1
$63.14 $81.24 -22%
FoxFarm Cultivation Nation pH Up Nutrient Solution Adjuster - 32 Oz
In Stock: 276
$298.08 / $24.84 per unit
(minimum purchase of 12)
FoxFarm Happy Frog Jump Start Fertilizer 3-4-3 - 4 lb - OMRI Listed
In Stock: 528
$153.72 / $12.81 per unit
(minimum purchase of 12)
Sustane 8-2-4 Lawn & Landscape Plant Food - 5 lb - OMRI Listed
Out of stock
$108.40 / $13.55 per unit
(minimum purchase of 8)
Down To Earth Kelp Meal 1-0.1-2 Organic Fertilizer - 50 lb - OMRI Listed
In Stock: 76
$230.04 $321.09 -28%
Royal Gold Crown Jewels Grow Fertilizer 3-2-2 - 20 lb
In Stock: 64
$136.22 / $68.11 per unit
(minimum purchase of 2)
Big Foot Root Boost Nitrogen-Fixing Azospirillum - 32 Oz
In Stock: 34
$47.29 $68.59 -31%
Down To Earth Vegetable Garden 4-4-4 Fertilizer - 3-Pack of 5 lb
In Stock: 210
$31.04 $42.09 -26%
FoxFarm Big Bloom Fertilizer 0-0.5-0.7 - 2.5 Gal - Concentrate - OMRI Listed
In Stock: 30
$353.28 / $176.64 per unit
(minimum purchase of 2)
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