When to Plant Buttercup Squash in Zone 4
In USDA zone 4, start seeds indoors around April 24, transplant or plant outdoors May 29 to September 6, and expect your first harvest around September 6.
Buttercup Squash planting calendar for USDA Zone 4
Start seeds indoors
Apr 24
Transplant outdoors
May 29
Projected first harvest
Sep 6
Buttercup Squash is ready to harvest in about 100 days. Dates use USDA zone 4a average frost dates. Set your ZIP in HomeSown for dates tuned to your exact location.
What zone 4 means for buttercup squash
Average last spring frost
May 15
Average first fall frost
September 20
Those two dates are what set the schedule above. Zone 4 gives you roughly 128 frost-free days, and buttercup squash need about 100 days to mature.
Varieties to grow
1 variety of buttercup squash in the HomeSown library. Tap any for its full grow guide.
Common problems with buttercup squash
What to watch for, with identification and treatment for each
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