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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 Mycorrhizae Granular Root Inoculant - 2 lb
In Stock: 72
$189.96 / $31.66 per unit
(minimum purchase of 6)
FoxFarm Tiger Bloom Buds & Blooms Fertilizer 2-8-4 - 32 Oz - Concentrate
In Stock: 583
$346.80 / $28.90 per unit
(minimum purchase of 12)
Down To Earth Langbeinite 0-0-22 Organic Fertilizer - 1 lb - OMRI Listed
In Stock: 60
$46.44 / $7.74 per unit
(minimum purchase of 6)
FoxFarm Happy Frog Cavern Culture Fertilizer 1-12-0 - 4 lb - OMRI Listed
In Stock: 264
$203.76 / $16.98 per unit
(minimum purchase of 12)
Plant Success Great White Premium Mycorrhizae Concentrate - 4 Oz
Out of stock
$35.10 $45.16 -22%
FoxFarm Big Bloom Fertilizer 0-0.5-0.7 - 32 Oz - Concentrate - OMRI Listed
In Stock: 591
$259.56 / $21.63 per unit
(minimum purchase of 12)
Big Foot Root Boost Nitrogen-Fixing Azospirillum - 15 lb
In Stock: 6
$97.96 $299.00 -67%
MYKE Vegetable & Herb Mycorrhizae 0.2-0.2-1.0 - 1.8 Oz
In Stock: 109
$324.36 / $9.01 per unit
(minimum purchase of 36)
SUPERthrive Mag-Pro Nutritional Supplement 2-15-4 - 32 Oz
In Stock: 39
$230.16 / $19.18 per unit
(minimum purchase of 12)
Royal Gold Crown Jewels Bloom Fertilizer 1-4-2 - 40 lb
In Stock: 5
$142.29 $184.32 -23%
Xtreme Gardening Azos Wettable Powder Root Booster - 20 Lb
Out of stock
$726.21 $871.90 -17%
Down To Earth Neem Seed Meal 6-1-2 Organic Fertilizer - 5 lb - OMRI Listed
In Stock: 90
$124.50 / $20.75 per unit
(minimum purchase of 6)
Down To Earth Kelp Meal 1-0.1-2 Organic Fertilizer - 20 lb - OMRI Listed
In Stock: 29
$97.06 $135.59 -28%
FoxFarm Cultivation Nation pH Down Nutrient Solution Adjuster - 16 Oz
In Stock: 444
$149.40 / $12.45 per unit
(minimum purchase of 12)
SUPERthrive Pure Neem Oil Organic Leaf Polish - 1 Gal
Out of stock
$538.16 / $134.54 per unit
(minimum purchase of 4)
FoxFarm Cultivation Nation pH Down Nutrient Solution Adjuster - 32 Oz
In Stock: 227
$275.52 / $22.96 per unit
(minimum purchase of 12)
MICROBE Life Hydroponics Photosynthesis Plus | 32oz - (Case of 12)
In Stock: 36
$299.04 / $24.92 per unit
(minimum purchase of 12)
GH General Organics BioThrive Bloom 2-4-4 Base Nutrient - 32 Oz
In Stock: 250
$16.29 $25.28 -36%
True Organic Rose & Flower Food - 4 lb
In Stock: 869
$59.34 / $9.89 per unit
(minimum purchase of 6)
Nectar for the Gods Persephone's Palate Nutrient Supplement - 32 Oz
In Stock: 10
$14.79 $17.99 -18%
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