Skip to content
Sprout Authority

Growing radish 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 radish against those dates.

Direct sow outdoorsApril 10 to April 17
Expected harvestMay 5 to June 1About 25 to 45 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 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 radish from Utah State University Extension. Zone dates are medians; local conditions vary.