When to plant green beans in Idaho

Sow outdoors in Boise City

May 1–May 22

Across Idaho the window opens between April 13 and May 19. Find your city below; the dates follow each town's own average last frost.

Sow outdoors 1–4 weeks after the last frost. Bush beans ripen all at once, so sow a new row every two to three weeks.

Green beans planting dates by city

Start indoorsPlant outSow outdoorsFall plantingAverage last and first frost

JanFebMarAprMayJunJulAugSepOctNovDec

Boise CityMay 1–May 22

MeridianMay 1–May 22

NampaMay 6–May 27

CaldwellMay 6–May 27

Idaho FallsMay 16–Jun 6

PocatelloMay 9–May 30

Coeur d'AleneApr 29–May 20

Twin FallsMay 7–May 28

Post FallsApr 29–May 20

RexburgMay 19–Jun 9

LewistonApr 13–May 4

EagleMay 6–May 27

KunaMay 1–May 22

StarMay 6–May 27

AmmonMay 16–Jun 6

When should I plant green beans in Idaho?

In Boise City, sow outdoors from May 1 to May 22. Across Idaho the window opens between April 13 and May 19, depending on the local last frost.

How is this date worked out?

Sow outdoors 1–4 weeks after the last frost. Frost dates are NOAA 1991–2020 averages for the weather station nearest each city.