When to Plant Head Lettuce in Marine On Saint Croix, Minnesota (55047)
Location
Marine On Saint Croix, Minnesota
ZIP Code
55047
USDA Zone
4b
Last Frost
Tuesday, May 5, 2026
📅 Planting Calendar
Direct Sow Outdoors Tuesday, March 24, 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 4b
Head Lettuce (Lactuca sativa) is a popular garden vegetable. In Marine On Saint Croix, Minnesota, which is in USDA Hardiness Zone 4b, you should direct sow seeds around Tuesday, March 24, 2026.
Your average last frost date is Tuesday, May 5, 2026. Head Lettuce grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.