Maximize blooms, enhance flower color, and encourage larger, more abundant blossoms with Jack's Classic Blossom Booster 10-30-20 Fertilizer. This professional-grade, water-soluble plant food is specially formulated with elevated phosphorus levels to support vigorous root development, increased bud formation, and spectacular flowering performance in a wide variety of plants.
Ideal for flowering houseplants, annuals, perennials, hanging baskets, flowering shrubs, and fruiting vegetables, Jack's Classic Blossom Booster provides the nutrients plants need during the critical flowering stage. Whether you're growing vibrant flower gardens, container plants, or high-yield vegetables, this trusted formula helps unlock bigger blooms and stronger plant performance.
Why Gardeners Choose Jack's Classic Blossom Booster
- High-phosphorus 10-30-20 formula promotes larger, more abundant flowers
- Encourages increased bud development and enhanced bloom production
- Supports strong root growth for healthier, more vigorous plants
- Contains essential micronutrients to help prevent nutrient deficiencies and leaf yellowing
- Water-soluble formula delivers fast nutrient uptake and visible results
- Suitable for indoor and outdoor flowering plants, vegetables, and ornamentals
- Can be applied as a soil drench or foliar spray for flexible feeding options
Designed for Exceptional Flowering Performance
Jack's Classic Blossom Booster is specifically formulated for plants entering the flowering stage. The elevated phosphorus content helps plants direct energy toward flower production while supporting healthy root systems that can sustain vigorous growth throughout the bloom cycle.
In addition to its bloom-enhancing nutrients, this formula contains a complete package of micronutrients including iron and trace elements that help maintain lush green foliage and overall plant health.
Application Instructions
Indoor Plants
Mix ½ teaspoon per gallon of water and apply every 7–14 days during the flowering cycle.
Outdoor Plants
Mix 1 tablespoon per gallon of water and apply every 7–14 days during active budding and flowering.
For best results, apply directly to the root zone or use as a foliar spray for rapid nutrient absorption.
Ideal For
- Flowering Houseplants
- Annual Flowers
- Perennial Gardens
- Hanging Baskets
- Roses
- Flowering Shrubs
- Fruiting Vegetables
- Container Gardens
- Landscape Beds
Best Time to Use
Bud Development & Flowering
Apply when plants begin transitioning into the flowering stage to encourage more buds, larger blooms, and longer-lasting flowers.
Transplant Support
The phosphorus-rich formula makes an excellent starter fertilizer for newly transplanted flowers, vegetables, and ornamentals by promoting healthy root establishment.
Fruiting Vegetables
Ideal for tomatoes, peppers, cucumbers, and other flowering vegetables during bloom development. For season-long nutrition, many gardeners alternate with a balanced fertilizer after the initial flowering cycle.
Pro Growing Tip
For maximum plant performance, many growers alternate Jack's Classic Blossom Booster with a balanced fertilizer such as a 20-20-20 formula. This feeding strategy helps maintain lush green growth while supporting continuous flower production and improved fruit set throughout the growing season.
