When to Plant Turnips in Idaho

In a typical Idaho location, sow outdoors Apr 2 – Apr 16. Across the state, the outdoor planting window starts as early as Mar 9 in Lewiston and as late as Apr 19 in Eagle. For a fall crop, plant around Aug 5 – Aug 19. 2 cities in Idaho are essentially frost-free and can plant on a year-round schedule.

Method Direct sow
Days to maturity 40–60 days

Cold-hardy; direct sow 2-4 weeks before last frost.

Turnips Planting Dates by City

CityDirect sowFall planting
BoiseMar 27 – Apr 10Aug 12 – Aug 26
MeridianMar 27 – Apr 10Aug 12 – Aug 26
NampaApr 1 – Apr 15Aug 4 – Aug 18
Idaho FallsApr 11 – Apr 25Jul 23 – Aug 6
PocatelloApr 4 – Apr 18Aug 2 – Aug 16
CaldwellMar 26 – Apr 9Aug 9 – Aug 23
Coeur d'AleneMar 25 – Apr 8Aug 9 – Aug 23
Twin FallsApr 2 – Apr 16Jul 31 – Aug 14
LewistonMar 9 – Mar 23Aug 17 – Aug 31
Lewiston OrchardsMar 9 – Mar 23Aug 17 – Aug 31
Post FallsMar 25 – Apr 8Aug 9 – Aug 23
RexburgApr 17 – May 1Jul 15 – Jul 29
MoscowFrost-free: year-round planting
EagleApr 19 – May 3Aug 3 – Aug 17
CondaFrost-free: year-round planting
KunaMar 27 – Apr 10Aug 12 – Aug 26
AmmonApr 11 – Apr 25Jul 23 – Aug 6
ChubbuckApr 4 – Apr 18Aug 2 – Aug 16
HaydenMar 25 – Apr 8Aug 9 – Aug 23
Mountain HomeApr 4 – Apr 18Jul 30 – Aug 13
BlackfootApr 7 – Apr 21Jul 25 – Aug 8
Garden CityMar 27 – Apr 10Aug 12 – Aug 26
JeromeApr 4 – Apr 18Aug 5 – Aug 19
BurleyApr 9 – Apr 23Jul 26 – Aug 9

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 turnips in Idaho?

In a typical Idaho location, sow outdoors Apr 2 – Apr 16. Across the state, the outdoor planting window starts as early as Mar 9 in Lewiston and as late as Apr 19 in Eagle. For a fall crop, plant around Aug 5 – Aug 19. 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 turnips take to grow?

Turnips typically take 40–60 days from planting to harvest. Cold-hardy; direct sow 2-4 weeks before last frost.

Other Crops in Idaho

When to plant turnips in other states

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