When to plant Celery in Idaho

In spring, from Apr 1 – 20 in Lewiston to May 10 – June 15 in Garden City.

In fall, from May 15 – July 1 in Rexburg to June 15 – Aug 15 in Lewiston.

Dates are for setting out plants. USDA's earliest safe spring and latest safe fall planting dates, matched to each place's average frost dates.

Celery and celeriac planting dates by place in Idaho
PlaceSpringFall
AmmonApr 20 – June 15June 1 – July 5
BlackfootApr 15 – May 1June 1 – July 5
Boise CityApr 10 – May 1June 1 – Aug 1
BurleyApr 20 – June 15June 1 – July 5
CaldwellApr 15 – May 1June 1 – July 15
ChubbuckMay 10 – June 15June 1 – July 5
Coeur d'AleneApr 10 – May 1June 1 – Aug 1
EagleApr 15 – May 1June 1 – Aug 1
Garden CityMay 10 – June 15June 1 – July 15
HaydenApr 10 – May 1June 1 – Aug 1
Idaho FallsApr 20 – June 15June 1 – July 5
JeromeApr 15 – May 1June 1 – July 15
KunaApr 10 – May 1June 1 – Aug 1
LewistonApr 1 – 20June 15 – Aug 15
MeridianApr 10 – May 1June 1 – Aug 1
MiddletonApr 15 – May 1June 1 – July 15
MoscowApr 15 – May 1June 1 – July 5
Mountain HomeApr 15 – May 1June 1 – July 15
NampaApr 15 – May 1June 1 – July 15
PocatelloApr 15 – May 1June 1 – July 15
Post FallsApr 10 – May 1June 1 – Aug 1
RathdrumApr 10 – May 1June 1 – Aug 1
RexburgApr 20 – June 15May 15 – July 1
SandpointApr 20 – June 15June 1 – July 5
StarApr 15 – May 1June 1 – July 15
Twin FallsApr 15 – May 1June 1 – July 15

Planting dates: USDA Home and Garden Bulletin No. 9 (1967), tables 4 and 5. Frost dates: NOAA U.S. Climate Normals 1991–2020. “—” means the place's frost date is outside the table. The full USDA table for celery and celeriac.