When to Plant Head Lettuce in Fort Peck, Montana (59223)
Location
Fort Peck, Montana
ZIP Code
59223
USDA Zone
4a
Last Frost
Friday, May 15, 2026
📅 Planting Calendar
Direct Sow Outdoors Friday, April 3, 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 4a
Head Lettuce (Lactuca sativa) is a popular garden vegetable. In Fort Peck, Montana, which is in USDA Hardiness Zone 4a, you should direct sow seeds around Friday, April 3, 2026.
Your average last frost date is Friday, May 15, 2026. Head Lettuce grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.