Espoma Bulb-Tone is a premium organic fertilizer specially formulated to meet the unique nutritional needs of bulbs and tubers. Whether you’re planting tulips, daffodils, crocus, hyacinths, or other spring bloomers, this all-natural plant food provides the nutrients these plants require for strong root development and vibrant flowers. Bulb-Tone works slowly and steadily, delivering a long-lasting nutrient reservoir throughout the growing season so your bulbs receive a continuous supply of essential elements when they need it most.
This granular fertilizer contains bone meal and other natural organics combined with Bio-tone, Espoma’s proprietary blend of beneficial soil microbes that biologically enhance the natural formula for superior results. The balanced 3-5-3 nutrient analysis offers a harmonious blend that fuels both root strength and bloom intensity, ensuring your bulbs reach their full potential season after season.
Features and Benefits
- All-Natural Organic Formula: Made from natural ingredients including bone meal and other organic materials.
- Bio-tone Microbes: Contains Espoma’s proprietary blend of beneficial microbes that biologically enhance nutrient availability and support healthy plant growth.
- Slow-Release Feeding: Feeds gradually to provide a continuous supply of nutrients throughout the growing season, reducing the need for frequent reapplication.
- Balanced Nutrition: The 3-5-3 formula supports both root development and flowering performance.
- For Bulbs and Tubers: Specifically formulated to meet the special nutritional needs of spring and summer bulbs, including tulips, daffodils, crocus, and hyacinths.
Specifications
- Brand: Espoma
- Model: BT4
- Weight: 4 lb.
- NPK Formula: 3-5-3
- Type: Granular, organic plant food
- Key Ingredients: Bone meal, natural organics, Bio-tone beneficial microbes








