MasterBlend Bloom Formula
Best bloom booster for serious cannabis and hemp cultivators.
This high-purity bloom booster is the gold standard for growers who want total control over their nutrient profile. It requires you to mix in your own calcium and magnesium, but the trade-off is a clean, clog-free formula that delivers professional-grade results in any irrigation system.
$46.59
at
Custom Hydro
Who it's for
- Serious cultivators aiming for maximum flower density and resin production
- Hydroponic growers using automated irrigation systems
- Commercial operations seeking cost-effective, bulk nutrient supplies
Who should skip it
- Growers preferring simple, all-in-one nutrient solutions
- Gardeners needing a versatile fertilizer for all growth stages
- Beginners intimidated by complex mixing and dilution requirements
Performance breakdown
Bloom Potency
The 0-20-42 ratio provides a massive phosphorus and potassium boost.
System Compatibility
High-purity formula ensures zero residue in complex hydroponic irrigation lines.
Nutrient Customization
Modular design allows precise control over calcium and magnesium supplementation.
Solubility Efficiency
Dissolves rapidly and completely for seamless integration into automated feeding.
Micronutrient Density
Comprehensive trace element profile supports vigorous plant health during flowering.
Application Versatility
Adapts perfectly to both soil-based setups and high-tech hydroponic systems.
Key Specs
Guaranteed Analysis N-P-K
0%-20%-42%
Secondary Nutrient
Sulfur (S) 9%
Micronutrients Included
Boron (0.03%), Copper (0.02%), Iron (0.35%), Manganese (0.09%), Molybdenum (0.01%), Zinc (0.02%)
Maximum Solubility
1 lb. per gallon
Nutrients derived from
potassium phosphate, potassium sulfate, boric acid, copper EDTA, copper sulfate, iron DTPA, manganese EDTA, sodium molybdate, zinc EDTA
Package Weight
25 lb.
Fertilizer Source
Synthetic
Nitrogen Percentage
0%
Phosphorus Percentage
20%
Potassium Percentage
42%
Know before you buy
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