Window Boxes Herbs Next-Season Strengthener Fertilizer for Sun-Loving Plants
$35.99
🌿 Window Boxes Herbs Next-Season Strengthener Fertilizer
For Sun-Loving Herbs | NPK: 3-5-7
Prepare your herbs for vigorous spring growth with Window Boxes Herbs Next-Season Strengthener Fertilizer. Specially designed for container-grown and window box herbs, this formula features a 3-5-7 NPK ratio to fortify root systems, support flowering, and build plant resilience—perfect for herbs like basil, rosemary, lavender, and thyme. Apply in late summer or early fall to strengthen your garden's foundation for the coming season.
📊 What Does 3-5-7 Mean?
| Nutrient | Percentage | Role in Plant Health |
|---|---|---|
| Nitrogen | 3% | Supports leafy green growth |
| Phosphorus | 5% | Promotes strong root development and bloom formation |
| Potassium | 7% | Enhances resilience, flowering, and plant structure |
🕐 When & How to Apply
Best Time:
Late summer to early fall, after your herbs have matured and before dormancy begins. This strengthens roots and sets your plants up for success in spring.
Application Rates:
Container/Window Boxes:
Apply 1–2 tablespoons per square foot of soil surface.In-Ground Herb Beds:
Use 1/4 to 1/2 cup per plant, depending on plant size.
Instructions:
Distribute Fertilizer:
Evenly spread fertilizer across the soil surface—avoid direct contact with stems or foliage.Incorporate:
Lightly work into the top 1–2 inches of soil with a trowel or fork.Water Thoroughly:
This dissolves the nutrients and moves them into the root zone. Maintain consistent moisture in the weeks following.
🌡️ Soil Temperature & Conditions
| Planting Zone | Optimal Soil Temp |
|---|---|
| USDA Zones 5–10 | 60–70°F (15–21°C) |
Maintain this range during application to maximize nutrient uptake and support root activity before winter.
🌱 Top 20 Sun-Loving Herbs That Benefit
| Recommended Plants |
|---|
| 1. Basil |
| 2. Oregano |
| 3. Thyme |
| 4. Rosemary |
| 5. Sage |
| 6. Lavender |
| 7. Chives |
| 8. Parsley |
| 9. Mint |
| 10. Cilantro |
| 11. Lemon Balm |
| 12. Tarragon |
| 13. Dill |
| 14. Marjoram |
| 15. Bay Laurel |
| 16. Fennel |
| 17. Summer Savory |
| 18. Anise Hyssop |
| 19. Curry Plant |
| 20. Catnip |
These herbs will thrive with the higher phosphorus and potassium content, which aids in both structure and bloom development, especially in sun-exposed, confined environments like window boxes.
✅ Gardener's Tips
Storage: Reseal and store in a cool, dry place away from pets and children.
Safety: Always wear gloves when handling fertilizer.
Soil Testing: For best results, test your soil’s nutrient levels and pH before application.
By using Window Boxes Herbs Next-Season Strengthener Fertilizer, you're giving your herbs the support they need to thrive next season—stronger roots, more blooms, and better resilience in containers or confined spaces.
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