When to Plant Tomatoes in Zone 3
In USDA zone 3, start seeds indoors around April 18, transplant or plant outdoors June 13 to August 30, and expect your first harvest around August 30.
Tomatoes planting calendar for USDA Zone 3
Start seeds indoors
Apr 18
Transplant outdoors
Jun 13
Projected first harvest
Aug 30
Most tomatoes mature in about 55 to 85 days depending on the variety. Dates use USDA zone 3a average frost dates. Set your ZIP in HomeSown for dates tuned to your exact location.
What zone 3 means for tomatoes
Average last spring frost
May 30
Average first fall frost
September 10
Those two dates are what set the schedule above. Zone 3 gives you roughly 103 frost-free days, and tomatoes need about 55 to 85 days depending on the variety to mature.
Varieties to grow
30 varieties of tomatoes in the HomeSown library. Tap any for its full grow guide.
Common problems with tomatoes
What to watch for, with identification and treatment for each
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