When to Plant Summer Squash in Zone 10
In USDA zone 10, start seeds indoors around January 9, transplant or plant outdoors February 13 to April 4, and expect your first harvest around April 4.
Summer Squash planting calendar for USDA Zone 10
Start seeds indoors
Jan 9
Transplant outdoors
Feb 13
Projected first harvest
Apr 4
Most summer squash mature in about 50 days. Dates use USDA zone 10a average frost dates. Set your ZIP in HomeSown for dates tuned to your exact location.
What zone 10 means for summer squash
Average last spring frost
January 30
Average first fall frost
December 30
Those two dates are what set the schedule above. Zone 10 gives you roughly 334 frost-free days, and summer squash need about 50 days to mature.
Varieties to grow
3 varieties of summer squash in the HomeSown library. Tap any for its full grow guide.
Common problems with summer squash
What to watch for, with identification and treatment for each
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