When to Plant Serrano Pepper in Larslan, Montana (59244)
Location
Larslan, Montana
ZIP Code
59244
USDA Zone
3b
Last Frost
Wednesday, May 20, 2026
📅 Planting Calendar
Start Seeds Indoors Wednesday, March 11, 2026
Transplant Outdoors Wednesday, June 3, 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 3b
Serrano Pepper (Capsicum annuum) is a popular garden vegetable. In Larslan, Montana, which is in USDA Hardiness Zone 3b, you should start seeds indoors around Wednesday, March 11, 2026.
Your average last frost date is Wednesday, May 20, 2026. Plan to transplant your Serrano Pepper seedlings outdoors around Wednesday, June 3, 2026, about 2 weeks after your last frost date.