When to Plant Jalapeño Pepper in Haiku, Hawaii (96708)
Location
Haiku, Hawaii
ZIP Code
96708
USDA Zone
12a
Last Frost
Friday, January 1, 2027
📅 Planting Calendar
Start Seeds Indoors Friday, October 23, 2026
Transplant Outdoors Friday, January 15, 2027
Pro Tip: Start Jalapeño Pepper seeds indoors 10 weeks before your last frost date for best results.
🌿 Plant Details
Scientific Name Capsicum annuum
Days to Maturity 75 days
Mature Height 24-36"
Spread 18"
Type Bush
Fruit Size Small (2-3 inches)
☀️ Growing Requirements
☀️
Sun
Full Sun (6-8 hours)
💧
Water
Moderate
↔️
Spacing
18" apart
🌱
Planting Depth
0.25" deep
Seeds typically germinate in 7-14 days
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Growing Jalapeño Pepper in Zone 12a
Jalapeño Pepper (Capsicum annuum) is a popular garden vegetable. In Haiku, Hawaii, which is in USDA Hardiness Zone 12a, you should start seeds indoors around Friday, October 23, 2026.
Your average last frost date is Friday, January 1, 2027. Plan to transplant your Jalapeño Pepper seedlings outdoors around Friday, January 15, 2027, about 2 weeks after your last frost date.