When to plant turnips in Idaho

Turnips
Sow outdoors in Boise City
Mar 27–Apr 10

Across Idaho the window opens between March 9 and April 14. Find your city below; the dates follow each town's own average last frost.

Sow outdoors, Boise City
Mar 27–Apr 10
Fall planting, Boise City
Aug 12–Aug 26
Last frost, Boise City
Apr 24

Sow outdoors 2–4 weeks before the last frost; sow again for fall 8–10 weeks before the first frost. Fall turnips are sweeter. Pull them at 2–3 inches across.

Turnips planting dates by city

Start indoorsPlant outSow outdoorsFall plantingAverage last and first frost
JanFebMarAprMayJunJulAugSepOctNovDec
Boise CityMar 27–Apr 10
MeridianMar 27–Apr 10
NampaApr 1–Apr 15
CaldwellApr 1–Apr 15
Idaho FallsApr 11–Apr 25
PocatelloApr 4–Apr 18
Coeur d'AleneMar 25–Apr 8
Twin FallsApr 2–Apr 16
Post FallsMar 25–Apr 8
RexburgApr 14–Apr 28
LewistonMar 9–Mar 23
EagleApr 1–Apr 15
KunaMar 27–Apr 10
StarApr 1–Apr 15
AmmonApr 11–Apr 25

Questions

When should I plant turnips in Idaho?

In Boise City, sow outdoors from March 27 to April 10. Across Idaho the window opens between March 9 and April 14, depending on the local last frost.

How is this date worked out?

Sow outdoors 2–4 weeks before the last frost; sow again for fall 8–10 weeks before the first frost. Frost dates are NOAA 1991–2020 averages for the weather station nearest each city.

More for Idaho

Turnips in other states

Frost dates for every city in Idaho