Caring for Petunias During Peak Bloom

Overview

Petunias are flowering annuals with hundreds of varieties. Two main classes: Grandiflora (large flowers, great for hanging baskets) and Multiflora (smaller flowers, more profuse, better for beds). Easy, colorful all summer.

Step 1: Sunlight

At least 5 hours daily. Partial shade reduces flowering. Warm temps preferred; extreme heat stops bloom.

Step 2: Watering

Spreading types: soak every other day (weather-dependent). Others: deep weekly soak to wet top 6–8 inches.

Step 3: Fertilize

Liquid 10-10-10 every 2–3 weeks.

Step 4: Pinch Back

Frequently pinch to encourage new blooms. Use shears to remove dead/dying flowers, especially when stems get leggy with long bare branches.