Growing zucchini in zone 5b
In USDA zone 5b, the typical last spring frost is May 1 and the first fall frost is October 10. Here is when to plant zucchini against those dates.
Direct sow outdoorsMay 1 to May 15
Expected harvestJune 25 to July 9About 55 to 55 days from sowing.
These are zone 5b averages
Computed from 2,843 ZIP codes in zone 5b. 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 zucchini from Clemson Cooperative Extension, Home & Garden Information Center. Zone dates are medians; local conditions vary.