When to Plant Green Beans in Idaho

In a typical Idaho location, sow outdoors Apr 30 – May 14. Across the state, the outdoor planting window starts as early as Apr 6 in Lewiston and as late as May 17 in Eagle. 2 cities in Idaho are essentially frost-free and can plant on a year-round schedule.

Method Direct sow
Days to maturity 50–65 days

Direct sow at last frost to 2 weeks after, once soil has warmed; frost-tender, do not rush.

Green Beans Planting Dates by City

CityDirect sow
BoiseApr 24 – May 8
MeridianApr 24 – May 8
NampaApr 29 – May 13
Idaho FallsMay 9 – May 23
PocatelloMay 2 – May 16
CaldwellApr 23 – May 7
Coeur d'AleneApr 22 – May 6
Twin FallsApr 30 – May 14
LewistonApr 6 – Apr 20
Lewiston OrchardsApr 6 – Apr 20
Post FallsApr 22 – May 6
RexburgMay 15 – May 29
MoscowFrost-free: year-round planting
EagleMay 17 – May 31
CondaFrost-free: year-round planting
KunaApr 24 – May 8
AmmonMay 9 – May 23
ChubbuckMay 2 – May 16
HaydenApr 22 – May 6
Mountain HomeMay 2 – May 16
BlackfootMay 5 – May 19
Garden CityApr 24 – May 8
JeromeMay 2 – May 16
BurleyMay 7 – May 21

Showing the 24 most populous of 24 Idaho cities. Dates are estimates from each city's NOAA frost normals and university extension timing guidelines. See all Idaho cities.

Frequently Asked Questions

When should I plant green beans in Idaho?

In a typical Idaho location, sow outdoors Apr 30 – May 14. Across the state, the outdoor planting window starts as early as Apr 6 in Lewiston and as late as May 17 in Eagle. 2 cities in Idaho are essentially frost-free and can plant on a year-round schedule.

When is the last frost in Idaho?

The average last spring frost in Idaho ranges from April 6 in Lewiston to May 17 in Eagle, based on NOAA 1991–2020 climate normals.

How long do green beans take to grow?

Green Beans typically take 50–65 days from planting to harvest. Direct sow at last frost to 2 weeks after, once soil has warmed; frost-tender, do not rush.

Other Crops in Idaho

When to plant green beans in other states

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