JR Peters Jacks Classic Blossom Booster
Best high performance fertilizer for home gardeners seeking vibrant floral displays.
This professional-grade formula is the secret weapon for gardeners who prioritize show-stopping blooms over foliage. By feeding through both roots and leaves, it delivers a rapid nutrient boost that forces plants to focus their energy on color and production, though it requires a more disciplined, consistent feeding schedule than slow-release alternatives.
$13.99
More Jack's Classic options
Who it's for
- Gardeners seeking maximum bloom density and larger floral displays
- Efficient growers who prefer fast-acting liquid feeding methods
- Hobbyists maintaining diverse collections of ornamental and bedding plants
Who should skip it
- Inattentive users prone to over-fertilizing their delicate plants
- Organic purists focused on long-term soil biology and sustainability
- Low-maintenance gardeners who prefer slow-release or one-time feeding options
Performance breakdown
Bloom stimulation
High phosphorus content drives aggressive, prolific flower production across most species.
Nutrient uptake speed
Water-soluble formula ensures rapid absorption through both roots and foliage.
Application versatility
Works seamlessly for container plants, garden beds, and indoor foliage.
Formula consistency
Professional-grade blend delivers reliable, predictable results with every single feeding.
Ease of mixing
Powder dissolves cleanly in water without leaving stubborn, gritty residue behind.
Color vibrancy
Balanced micronutrients significantly enhance petal saturation and overall plant health.
Key Specs
Weight
1.5 lbs
NPK Ratio
10-30-20
Form
Water Soluble Powder
Application
Root and Foliar
Nitrogen Percentage
10%
Phosphorus Percentage
30%
Potassium Percentage
20%
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