Jack's Professional Bloom
Best bloom booster for gardeners seeking maximum flower and fruit production.
This professional-grade formula is the gold standard for growers who prioritize heavy bud development over everything else. While it requires a bit more care to mix than granular options, the immediate nutrient uptake delivers a level of floral density and fruit yield that standard fertilizers simply cannot match.
$71.50
at
CapCityHydro (Capital City Organics)
Who it's for
- Gardeners aiming for maximum flower and fruit yields
- Commercial growers using automated irrigation and fertigation systems
- Serious hobbyists prioritizing comprehensive plant nutrition and health
Who should skip it
- Budget-conscious growers seeking affordable, small-batch consumer options
- Beginners wanting a single all-purpose fertilizer for all stages
- Casual gardeners who prefer simple, forgiving feeding routines
Performance breakdown
Bloom stimulation
High phosphorus content drives exceptional bud development and floral density.
Nutrient bioavailability
Soluble mineral formula ensures plants access nutrients almost immediately upon application.
Application versatility
Effective across a wide range of flowering plants, shrubs, and vegetables.
Ease of mixing
Water-soluble powder dissolves cleanly without leaving behind stubborn, clogging residue.
Professional reliability
Decades of proven performance in commercial settings builds immense user trust.
Yield potential
Optimized nutrient ratio consistently maximizes harvest weight and fruit set quality.
Key Specs
NPK Ratio
10-30-20
Major Nutrient Ratio
1:3:2
Package Weight
25 lb.
Nitrogen Percentage
10%
Phosphorus Percentage
30%
Potassium Percentage
20%
Nutrient Availability
Soluble
Fertilizer Form
Water Soluble Powder
Fertilizer Source
Mineral Based
Container Weight
25.0 pounds
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