When to Plant Spaghetti Squash in Zone 3
In USDA zone 3, start seeds indoors around May 9, transplant or plant outdoors June 13 to September 11, and expect your first harvest around September 11.
Spaghetti Squash planting calendar for USDA Zone 3
Start seeds indoors
May 9
Transplant outdoors
Jun 13
Projected first harvest
Sep 11
Spaghetti Squash is ready to harvest in about 90 days. 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 spaghetti squash
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 spaghetti squash need about 90 days to mature.
Varieties to grow
1 variety of spaghetti squash in the HomeSown library. Tap any for its full grow guide.
Common problems with spaghetti squash
What to watch for, with identification and treatment for each
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