When to Plant Marshmallow in Zone 10
In USDA zone 10, start seeds indoors around December 5, transplant or plant outdoors February 13 to June 13, and expect your first harvest around June 13.
Marshmallow planting calendar for USDA Zone 10
Start seeds indoors
Dec 5
Transplant outdoors
Feb 13
Projected first harvest
Jun 13
Marshmallow is ready to harvest in about 120 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 marshmallow
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 marshmallow need about 120 days to mature.
Varieties to grow
1 variety of marshmallow in the HomeSown library. Tap any for its full grow guide.
Common problems with marshmallow
What to watch for, with identification and treatment for each
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