When to Plant Head Lettuce in Tucson, Arizona (85708)
Location
Tucson, Arizona
ZIP Code
85708
USDA Zone
9b
Last Frost
Wednesday, February 10, 2027
📅 Planting Calendar
Direct Sow Outdoors Wednesday, December 30, 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 9b
Head Lettuce (Lactuca sativa) is a popular garden vegetable. In Tucson, Arizona, which is in USDA Hardiness Zone 9b, you should direct sow seeds around Wednesday, December 30, 2026.
Your average last frost date is Wednesday, February 10, 2027. Head Lettuce grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.