Growing zucchini in zone 6b
In USDA zone 6b, the typical last spring frost is April 23 and the first fall frost is October 22. Here is when to plant zucchini against those dates.
Direct sow outdoorsApril 23 to May 7
Expected harvestJune 17 to July 1About 55 to 55 days from sowing.
These are zone 6b averages
Computed from 5,242 ZIP codes in zone 6b. 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.