When to plant Turnips in Alaska

In spring, from Mar 20 – May 1 in Juneau to Apr 15 – June 1 in Wasilla.

In fall, from June 1 – July 15 in Anchorage to July 1 – Aug 1 in Juneau.

USDA's earliest safe spring and latest safe fall planting dates, matched to each place's average frost dates.

Turnips planting dates by place in Alaska
PlaceSpringFall
AnchorageApr 15 – June 1June 1 – July 15
FairbanksApr 15 – June 1June 1 – July 1
JuneauMar 20 – May 1July 1 – Aug 1
WasillaApr 15 – June 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 turnips.