Raised Beds Flowers Season Starter Fertilizer for Flowering Annuals
$35.99
🌼 Raised Beds Flowers Season Starter Fertilizer for Flowering Annuals
NPK 15-30-15 • Spring Application • High-Phosphorus Formula
🌿 Product Summary
Kickstart your spring garden with this powerful bloom-boosting fertilizer. Designed for raised bed gardening, our 15-30-15 blend energizes flowering annuals with essential nutrients for lush foliage, vigorous root growth, and prolific blossoms.
Jumpstarts early-season flowering
High-phosphorus for root + bloom development
Ideal for petunias, marigolds, zinnias, and more
Suitable for both new and established beds
📊 Nutrient Breakdown (NPK 15-30-15)
Nutrient | % Content | Function |
---|---|---|
Nitrogen (N) | 15% | Fuels green growth and foliage |
Phosphorus (P) | 30% | Promotes root growth and prolific flowering |
Potassium (K) | 15% | Enhances resilience and plant vitality |
📅 Application Guide
Feature | Details |
---|---|
Timing | Apply early spring after last frost |
Frequency | Once at season start, reapply every 6–8 weeks if needed |
New Beds | 1 lb (450 g) per 100 sq. ft. |
Established Beds | 0.5–0.75 lb (225–340 g) per 100 sq. ft. |
Soil Temperature | Apply when soil is 60°F–70°F (15°C–21°C) for best nutrient uptake |
🛠️ How to Apply
✅ Broadcast Method
Evenly distribute granules across the raised bed
Gently rake into the top 2–3 inches of soil
Water thoroughly to dissolve and activate nutrients
✅ Liquid Option (if available)
Dilute according to label instructions
Apply directly to the base of plants
Avoid contact with leaves to prevent burn
🌸 20 Flowering Annuals That Benefit from 15-30-15
Petunia
Marigold
Zinnia
Geranium
Impatiens
Begonia
Snapdragons
Salvia
Lobelia
Verbena
Pansy
Cosmos
Nasturtium
Sweet Alyssum
Calibrachoa
Portulaca (Moss Rose)
Vinca (Periwinkle)
Dianthus
Celosia
Sunflower
✅ Tips for Best Results
Pre-water soil slightly before applying
Avoid fertilizing during midday heat
Monitor plant response for signs of deficiency or overfeeding
Conduct seasonal soil tests for tailored adjustments
Store in a cool, dry place, away from children and pets
Quantity