When to Plant Head Lettuce in Mount Wilson, California (91023)
Location
Mount Wilson, California
ZIP Code
91023
USDA Zone
9a
Last Frost
Saturday, February 20, 2027
📅 Planting Calendar
Direct Sow Outdoors Saturday, January 9, 2027
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 9a
Head Lettuce (Lactuca sativa) is a popular garden vegetable. In Mount Wilson, California, which is in USDA Hardiness Zone 9a, you should direct sow seeds around Saturday, January 9, 2027.
Your average last frost date is Saturday, February 20, 2027. Head Lettuce grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.