When to Plant Butternut Squash in Zone 10
In USDA zone 10a, start seeds indoors around January 9, transplant or plant outdoors February 13 to May 29, and expect your first harvest around May 29. (10a shown here — see 10a and 10b dates separately below.)
Butternut Squash planting calendar for USDA Zone 10a
Average last spring frost
January 30
Average first fall frost
December 30
Start seeds indoors
Jan 9
Transplant outdoors
Feb 13
Projected first harvest
May 29
Butternut Squash is ready to harvest in about 105 days, needing roughly 334 frost-free days in zone 10a.
Butternut Squash planting calendar for USDA Zone 10b
Average last spring frost
January 30
Average first fall frost
December 30
Start seeds indoors
Jan 9
Transplant outdoors
Feb 13
Projected first harvest
May 29
Butternut Squash is ready to harvest in about 105 days, needing roughly 334 frost-free days in zone 10b.
Not sure whether you're in 10a or 10b? Set your ZIP in HomeSown for dates tuned to your exact location.
Varieties to grow
1 variety of butternut squash in the HomeSown library. Tap any for its full grow guide.
Common problems with butternut squash
What to watch for, with identification and treatment for each
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