When to Plant Head Lettuce in Post Falls, Idaho (83877)
Location
Post Falls, Idaho
ZIP Code
83877
USDA Zone
6b
Last Frost
Wednesday, April 15, 2026
📅 Planting Calendar
Direct Sow Outdoors Wednesday, March 4, 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 6b
Head Lettuce (Lactuca sativa) is a popular garden vegetable. In Post Falls, Idaho, which is in USDA Hardiness Zone 6b, you should direct sow seeds around Wednesday, March 4, 2026.
Your average last frost date is Wednesday, April 15, 2026. Head Lettuce grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.