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When to Plant Serrano Pepper in Philadelphia, Pennsylvania (19152)

Location

Philadelphia, Pennsylvania

ZIP Code

19152

USDA Zone

7b

Last Frost

Sunday, April 5, 2026

📅 Planting Calendar

Start Seeds Indoors Sunday, January 25, 2026
Transplant Outdoors Sunday, April 19, 2026

Pro Tip: Start Serrano Pepper seeds indoors 10 weeks before your last frost date for best results.

🌿 Plant Details

Scientific Name Capsicum annuum
Days to Maturity 80 days

☀️ Growing Requirements

☀️

Sun

Full Sun

💧

Water

Regular

Seeds typically germinate in 7-14 days

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Growing Serrano Pepper in Zone 7b

Serrano Pepper (Capsicum annuum) is a popular garden vegetable. In Philadelphia, Pennsylvania, which is in USDA Hardiness Zone 7b, you should start seeds indoors around Sunday, January 25, 2026.

Your average last frost date is Sunday, April 5, 2026. Plan to transplant your Serrano Pepper seedlings outdoors around Sunday, April 19, 2026, about 2 weeks after your last frost date.