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Sprout Authority

Growing green bean (snap bean) in zone 4b

In USDA zone 4b, the typical last spring frost is May 8 and the first fall frost is October 1. Here is when to plant green bean (snap bean) against those dates.

Direct sow outdoorsMay 1
Expected harvestJune 20 to June 30About 50 to 60 days from sowing.

These are zone 4b averages

Computed from 1,251 ZIP codes in zone 4b. 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 green bean (snap bean) from Utah State University Extension. Zone dates are medians; local conditions vary.