When to Plant Heirloom Tomato in Minnesota
State
Minnesota
Cities Covered
805
USDA Zones
3a, 3b, 4a, 4b, 5a
Plant Type
Indoor Start
📅 Planting Calendar for Minnesota
Based on Minneapolis (Zone 5a). Dates may vary by city.
Note: Minnesota spans multiple zones (3a, 3b, 4a, 4b, 5a). Select your city below for more precise dates.
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Growing Heirloom Tomato in Minnesota
Heirloom Tomato (Solanum lycopersicum) is a popular garden vegetable in Minnesota. The state spans USDA Hardiness Zones 3a, 3b, 4a, 4b, 5a, so planting dates can vary significantly depending on your location.
For most of Minnesota, you should start Heirloom Tomato seeds indoors around Sunday, March 29, 2026, then transplant outdoors around Sunday, May 24, 2026.
For the most accurate planting dates, enter your ZIP code on our homepage or select your city from the list above.