When to Plant Marshmallow in Zone 6
In USDA zone 6, start seeds indoors around February 28, transplant or plant outdoors May 9 to September 6, and expect your first harvest around September 6.
Marshmallow planting calendar for USDA Zone 6
Start seeds indoors
Feb 28
Transplant outdoors
May 9
Projected first harvest
Sep 6
Marshmallow is ready to harvest in about 120 days. Dates use USDA zone 6a average frost dates. Set your ZIP in HomeSown for dates tuned to your exact location.
What zone 6 means for marshmallow
Average last spring frost
April 25
Average first fall frost
October 10
Those two dates are what set the schedule above. Zone 6 gives you roughly 168 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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