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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

Olivia's Cloning Solution - 1 Gal
In Stock: 4
$46.32 / $11.58 per unit
(minimum purchase of 4)
Neptune's Harvest Seaweed Plant Food 0-0-1 - 32 Oz Concentrate - OMRI Listed
In Stock: 468
$210.48 / $17.54 per unit
(minimum purchase of 12)
FoxFarm Happy Frog Fruit & Flower Fertilizer 4-9-3 - 4 lb - OMRI Listed
In Stock: 1318
$151.44 / $12.62 per unit
(minimum purchase of 12)
Down To Earth Feather Meal 12-0-0 Organic Fertilizer - 20 lb - OMRI Listed
In Stock: 16
$38.21 $64.19 -40%
Down To Earth Bat Guano 7-3-1 Organic Fertilizer - 2 lb - OMRI Listed
In Stock: 474
$69.72 / $11.62 per unit
(minimum purchase of 6)
Xtreme Gardening Mykos Natural Root Enhancer Mycorrhizal Inoculant - 100 g - 24-Count
In Stock: 49
$153.45 $177.40 -14%
True Organic Berry Food 5-4-4 - 4 lb
In Stock: 1512
$59.34 / $9.89 per unit
(minimum purchase of 6)
Big Foot Ecto-Mycorrhizae Water Soluble Powder for Woody Plants - 2 Oz - Case of 20
In Stock: 462
$140.40 / $7.02 per unit
(minimum purchase of 20)
Xtreme Gardening Mykos Wettable Powder Mycorrhizal Inoculant - 15 Lb
Out of stock
$624.84 / $312.42 per unit
(minimum purchase of 2)
Xtreme Gardening Mykos Granular Mycorrhizal Inoculant - 50 Lb
Out of stock
$399.76 $490.64 -19%
FoxFarm Cultivation Nation Cal-Mag Supplement - 32 Oz
In Stock: 180
$198.12 / $16.51 per unit
(minimum purchase of 12)
Plant Success Great White Premium Mycorrhizae Concentrate - 1 Oz
In Stock: 125
$12.47 $15.66 -20%
SUPERthrive Bonsai-Pro Liquid Plant Food 7-9-5 | 8oz - (Case of 12)
In Stock: 12
$91.92 / $7.66 per unit
(minimum purchase of 12)
General Hydroponics Flora Series Trial Pack Nutrient Kit - 32 Oz Each (FloraMicro, FloraGro, FloraBloom)
In Stock: 2
$39.09 $39.35 -1%
FoxFarm Tiger Bloom Buds & Blooms Fertilizer 2-8-4 - 1 Gal - Concentrate
In Stock: 225
$93.38 $113.99 -18%
Coast of Maine Stonington Blend Organic Natural Grower's Mix - 1.5 cu ft - OMRI Listed
In Stock: 356
$206.88 / $34.48 per unit
(minimum purchase of 6)
Sustane 4-6-4 Flower & Vegetable Plant Food - 20 lb - OMRI Listed
In Stock: 34
$22.40 $26.99 -17%
Big Foot Mycorrhizae Concentrate Water-In-Root Inoculum - 4 Oz
In Stock: 655
$162.60 / $10.84 per unit
(minimum purchase of 15)
SUPERthrive Mag-Pro Nutritional Supplement 2-15-4 - 8 Oz
In Stock: 5830
$86.76 / $7.23 per unit
(minimum purchase of 12)
Miracle-Gro Performance Organics Edibles Plant Food - 2.5 lb - OMRI Listed
In Stock: 1506
$48.54 / $8.09 per unit
(minimum purchase of 6)
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