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Sprout Authority

Growing sweet corn in zone 7b

In USDA zone 7b, the typical last spring frost is April 5 and the first fall frost is November 1. Here is when to plant sweet corn against those dates.

Direct sow outdoorsApril 5 to April 19
Expected harvestJune 4 to July 18About 60 to 90 days from sowing.

These are zone 7b averages

Computed from 3,851 ZIP codes in zone 7b. Your town's frost dates vary; enter your ZIP for dates built on your nearest weather station.

Get my exact dates

USDA 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 sweet corn from University of Minnesota Extension. Zone dates are medians; local conditions vary.