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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

Botanicare Pure Blend Tea Compost Tea Supplement 0.5-0.5-1 - 2.5 Gal
In Stock: 17
$74.04 $109.04 -32%
Botanicare Pure Blend Pro Grow Formula 3-2-4 - 2.5gal
In Stock: 8
$119.34 $175.97 -32%
Botanicare Cal-Mag Plus Calcium Magnesium Supplement 2-0-0 - 32 Oz
In Stock: 12
$17.49 $25.82 -32%
Down To Earth Bone Meal 3-15-0 Organic Fertilizer - 25 lb - OMRI Listed
In Stock: 1
$46.40 $62.49 -26%
Botanicare Pure Blend Pro Soil Base Nutrient 1-4-5 - 2.5 Gal
In Stock: 2
$57.68 $175.97 -67%
Xtreme Gardening Mykos WP | 12oz - Wettable Powder
In Stock: 45
$276.12 / $23.01 per unit
(minimum purchase of 12)
True Organic Liquid Tomato & Vegetable Food 3-2-3 - 16 Oz
In Stock: 942
$42.72 / $7.12 per unit
(minimum purchase of 6)
Xtreme Gardening Tea Brews Compost Tea Brewing Pouches - 20-Count
In Stock: 11
$217.14 $247.17 -12%
Down To Earth Bio-Fish 7-7-2 Organic Fertilizer - 50 lb - OMRI Listed
In Stock: 33
$80.26 $103.99 -23%
HDI Europonic FossilFuel Liquid Humic Acids - 32 Oz
In Stock: 12
$109.32 / $9.11 per unit
(minimum purchase of 12)
Sustane 4-6-4 All-Purpose Fertilizer - 50 lb - OMRI Listed
In Stock: 192
$72.95
Great White Granular 1 Mycorrhizal | 4oz - OMRI Listed
Out of stock
$125.04 / $5.21 per unit
(minimum purchase of 24)
Down To Earth Acid Mix 4-3-6 Fertilizer for Acid-Loving Plants - 25 lb
In Stock: 799
$42.11 $54.39 -23%
General Hydroponics FloraNectar FruitnFusion 0-0-1 Flavor Enhancer Supplement - 2.5 Gal
In Stock: 22
$133.08 $196.00 -32%
Down To Earth All-Purpose Mix 4-6-2 Organic Fertilizer - 1 lb - OMRI Listed
In Stock: 432
$49.08 / $4.09 per unit
(minimum purchase of 12)
Neptune's Harvest Fish Fertilizer 2-4-1 - 1 Gal Concentrate - OMRI Listed
In Stock: 31
$165.88 / $41.47 per unit
(minimum purchase of 4)
Xtreme Gardening Mykos Root Paks Mycorrhizal Inoculant - 50-Count
In Stock: 42
$83.82 / $13.97 per unit
(minimum purchase of 6)
Down To Earth Kelp Meal 1-0.1-2 Organic Fertilizer - 4 lb - OMRI Listed
In Stock: 32
$158.28 / $26.38 per unit
(minimum purchase of 6)
Plant Success Organics Soluble Mycorrhizae 0.5-0.1-7 - 1 lb - OMRI Listed
In Stock: 4
$57.08 $69.76 -18%
Down To Earth Rose & Flower Mix 4-8-4 Organic Fertilizer - 1 lb - OMRI Listed
In Stock: 564
$49.08 / $4.09 per unit
(minimum purchase of 12)
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