When to Plant Marshmallow in Zone 9
In USDA zone 9, start seeds indoors around January 4, transplant or plant outdoors March 15 to July 13, and expect your first harvest around July 13.
Marshmallow planting calendar for USDA Zone 9
Start seeds indoors
Jan 4
Transplant outdoors
Mar 15
Projected first harvest
Jul 13
Marshmallow is ready to harvest in about 120 days. Dates use USDA zone 9a average frost dates. Set your ZIP in HomeSown for dates tuned to your exact location.
What zone 9 means for marshmallow
Average last spring frost
March 1
Average first fall frost
December 1
Those two dates are what set the schedule above. Zone 9 gives you roughly 275 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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