Hanging Baskets Flowers Mid-Season Boost Fertilizer for Flowering Annuals

Supercharge Your Hanging Basket Blooms with Old Cobblers Farm™ Mid-Season Boost Fertilizer for Flowering Annuals, featuring a powerful 10-20-10 NPK ratio to fuel vibrant flowering and deep-root development. Ideal for petunias, marigolds, geraniums, and other annuals, this formula delivers essential mid-season nutrients that keep your containers blooming strong through late spring and early summer. Whether you’re a seasoned gardener or growing for the first time, this is the bloom booster your hanging baskets need.

Old Cobblers Farm™ Mid-Season Fertilizer Application Guide: For Hanging Basket Annuals

Keep your home garden thriving with this mid-season application guide. Our easy-to-follow instructions are designed for gardeners at any level looking to maintain color, fullness, and overall plant health.

Understanding the 10-20-10 NPK Ratio

The 10-20-10 formula is built for bloom-phase success:

• Nitrogen (10%) – Promotes steady, healthy foliage growth without overpowering flowering.

• Phosphorus (20%) – Drives prolific blooms and deep, strong root systems.

• Potassium (10%) – Enhances plant resilience, water regulation, and stress resistance.

This combination makes it ideal for heavy-flowering annuals often grown in baskets.

When to Apply

• Timing: Apply in late spring to early summer (mid-to-late May through July), when annuals are fully rooted and actively blooming.

• Frequency: Reapply every 4 to 6 weeks during the growing season to keep your baskets performing.

How to Apply

Liquid Application

• Mix: 1 tablespoon (15 mL) of fertilizer per gallon of water.

• Use: Water soil directly until moist. Avoid spraying foliage directly to prevent burn.

• Tip: Best applied in early morning or evening when temps are cooler.

Granular Application

• Rate: Use 1 tablespoon (~14g) per square foot of soil surface.

• Spread: Evenly distribute around the root zone, not on stems or leaves.

• Water: After spreading, water thoroughly to activate nutrient release.

Ideal Conditions

• Soil Temperature: Aim for 60°F to 70°F (15°C to 21°C) for best nutrient uptake.

• Pre-Watering: Always water lightly before applying to prevent root shock or burn.

Safety and Care

• Wear gloves and eye protection.

• Store in a dry, cool location—away from pets and kids.

• Avoid over-application. Too much phosphorus can inhibit micronutrient uptake.

Perfect Annuals for 10-20-10 Boost

Here are 20 flowering annuals that thrive with this bloom-phase formulation:

• Petunias

• Geraniums

• Marigolds

• Zinnias

• Calibrachoa (Million Bells)

• Fuchsias

• Snapdragons

• Begonias

• Pansies

• Impatiens

• Lobelias

• Verbena

• Alyssum

• Cosmos

• Salvia

• Dianthus

• Morning Glories

• Portulaca

• Nasturtiums

• Nicotiana

Old Cobblers Farm™ Mid-Season Boost Fertilizer keeps your baskets blooming long into summer. Invest in your garden’s beauty today with nutrients trusted by growers who know performance matters.