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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

Jack's Classic Blossom Booster 10-30-20 Water-Soluble Fertilizer - 4 lb
In Stock: 1091
$151.50 / $25.25 per unit
(minimum purchase of 6)
Jack's Classic Acid Special 17-6-6 Water-Soluble Fertilizer - 1.5 lb
In Stock: 792
$142.32 / $11.86 per unit
(minimum purchase of 12)
Gaia Green Mineralized Phosphate 0-9-0 | 2kg - (Case of 6)
In Stock: 18
$46.32 / $7.72 per unit
(minimum purchase of 6)
GreenGro Biologicals Earthshine Biochar Blend Soil Amendment - 5 lb
In Stock: 108
$123.08 / $30.77 per unit
(minimum purchase of 4)
GreenGro Biologicals EZ Grow Box Organic Nutrient Kit - 6-Piece Set
In Stock: 2
$146.60 $155.89 -6%
BioSafe Systems CalOx pH Micronized Calcium Carbonate Spray Additive - 2.5 Gal
In Stock: 8
$126.35
Osmocote Plus 15-9-12 Fertilizer - 12-14 Month - 50 lb
In Stock: 25
$139.59
Florikan Max Micronutrient Mix - 8 Essential Minerals - 50 lb
In Stock: 50
$203.50
Sustane Root Zone 4-6-4 Feeder Pak Fertilizer - 250-Count
In Stock: 2
$40.55
Ferti-lome Soil Acidifier Plus Iron Liquid Concentrate - 32 Oz
Out of stock
$147.84 / $12.32 per unit
(minimum purchase of 12)
Ferti-lome Blooming and Rooting Soluble Plant Food 9-58-8 Granules - 1.5 lb
In Stock: 893
$97.56 / $8.13 per unit
(minimum purchase of 12)
Soul Amino-Aide 5-0-1 Supplement - 1 Gal Concentrate
In Stock: 4
$225.28 / $56.32 per unit
(minimum purchase of 4)
Cutting Edge Solutions Micro 6-0-0 | 15gal
In Stock: 2
$328.45 $464.99 -29%
Peters Professional Uni-Mix 11-5-11 Growing Media Nutrient Charge - 50 lb
In Stock: 21
$89.86
GreenGro Biologicals Premium Ultrafine Mycorrhizae Soil Inoculant - 4 Oz
In Stock: 33
$118.30 / $11.83 per unit
(minimum purchase of 10)
GreenGro Biologicals Premium Ultrafine Mycorrhizae Soil Inoculant - 8 Oz
In Stock: 18
$214.14 / $35.69 per unit
(minimum purchase of 6)
Grow More Seaweed Extract 0.10-0-0.44 Fertilizer - 1 Gal
Out of stock
$151.96 / $37.99 per unit
(minimum purchase of 4)
Osmocote Blend 18-5-8 Fertilizer Enhanced with E-Max Technology - 8-9 Month - 50 lb
In Stock: 75
$134.55
Cutting Edge Solutions Uncle Johns Blend 0-0-2 Nutrient Supplement - 15 Gal
In Stock: 3
$673.21 $972.99 -31%
Peters Professional 10-30-20 Bloom Booster Fertilizer - 25 lb
Out of stock
$64.31
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