Growing parsley in zone 4a
In USDA zone 4a, the typical last spring frost is May 12 and the first fall frost is September 28. Here is when to plant parsley against those dates.
Start seeds indoorsMarch 17 to March 31
Direct sow outdoorsMay 12
These are zone 4a averages
Computed from 795 ZIP codes in zone 4a. Your town's frost dates vary; enter your ZIP for dates built on your nearest weather station.
Get my exact datesUSDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service / Oregon State University PRISM Group. NOAA National Centers for Environmental Information, U.S. Climate Normals 1991-2020. Planting windows for parsley from University of Minnesota Extension. Zone dates are medians; local conditions vary.