Window Boxes Herbs Season Starter Fertilizer for Sun-Loving Plants
$35.99
☀️ Window Boxes Herbs Season Starter Fertilizer
For Sun-Loving Plants | 5-10-5 NPK | Slow-Release Formula
Bring vibrancy to your herbs and flowering plants with a balanced, phosphorus-rich fertilizer that promotes strong root growth and abundant blooming. Specially made for sun-loving herbs and container gardens, this formulation is perfect for early spring application.
🔍 NPK Breakdown: 5-10-5
| Nutrient | Amount | Role in Plant Health |
|---|---|---|
| Nitrogen (N) | 5% | Stimulates green, leafy growth |
| Phosphorus (P) | 10% | Boosts root development and flowering |
| Potassium (K) | 5% | Enhances disease resistance and plant vigor |
This ratio is ideal for container-grown herbs like basil, thyme, and rosemary, as well as flowering plants like marigolds and zinnias.
📅 When to Apply
Start: Early spring, as new growth begins
Repeat: Every 6–8 weeks during active growing season
✅ How to Apply
Containers / Window Boxes
| Container Size | Fertilizer Amount |
|---|---|
| Small (≤12") | 1 tablespoon |
| Medium (12–18") | 2 tablespoons |
| Large (≥18") | 3 tablespoons |
Distribute evenly on top of soil
Gently mix into the top 1–2 inches of soil
Water thoroughly after application to activate nutrients
Raised Beds / Herb Gardens
Rate: ½ cup per square foot
Incorporate into soil and water well
🌡️ Ideal Conditions for Use
| Factor | Ideal Range |
|---|---|
| Soil Temperature | 60°F – 70°F (15°C – 21°C) |
| Sunlight | 6+ hours/day |
| Soil Moisture | Consistently moist, not waterlogged |
🌿 20 Plants That Thrive with 5-10-5 Fertilizer
Basil
Thyme
Oregano
Rosemary
Sage
Lavender
Chives
Cilantro
Parsley
Mint
Tarragon
Marjoram
Dill
Lemongrass
Sunflowers
Zinnias
Coneflowers (Echinacea)
Marigolds
Petunias
Nasturtiums
These plants love the sun and a balanced nutrient boost to thrive in confined spaces like window boxes, balcony planters, and raised beds.
🛡️ Gardener Tips
Avoid direct contact with plant stems and leaves to prevent burning
Use gloves when handling dry fertilizer
Store in a cool, dry place away from children and pets
Monitor plant response and adjust feeding frequency as needed
Quantity
