When to Plant Head Lettuce in Haiku, Hawaii (96708)
Location
Haiku, Hawaii
ZIP Code
96708
USDA Zone
12a
Last Frost
Friday, January 1, 2027
📅 Planting Calendar
Direct Sow Outdoors Friday, November 20, 2026
Pro Tip: Head Lettuce can be directly sown outdoors. Plant 6 weeks before your last frost date.
🌿 Plant Details
Scientific Name Lactuca sativa
Days to Maturity 7 days
☀️ Growing Requirements
☀️
Sun
Full Sun
💧
Water
Regular
Seeds typically germinate in 1-7 days
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Growing Head Lettuce in Zone 12a
Head Lettuce (Lactuca sativa) is a popular garden vegetable. In Haiku, Hawaii, which is in USDA Hardiness Zone 12a, you should direct sow seeds around Friday, November 20, 2026.
Your average last frost date is Friday, January 1, 2027. Head Lettuce grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.