When to Plant Shiso in Zone 5
In USDA zone 5, start seeds indoors around March 24, transplant or plant outdoors May 12 to July 11, and expect your first harvest around July 11.
Shiso planting calendar for USDA Zone 5
Start seeds indoors
Mar 24
Transplant outdoors
May 12
Projected first harvest
Jul 11
Shiso is ready to harvest in about 60 days. Dates use USDA zone 5a average frost dates. Set your ZIP in HomeSown for dates tuned to your exact location.
What zone 5 means for shiso
Average last spring frost
May 5
Average first fall frost
October 1
Those two dates are what set the schedule above. Zone 5 gives you roughly 149 frost-free days, and shiso need about 60 days to mature.
Varieties to grow
1 variety of shiso in the HomeSown library. Tap any for its full grow guide.
Common problems with shiso
What to watch for, with identification and treatment for each
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