When to plant Swiss chard in Vermont

In spring, from Apr 15 – June 15 in Burlington to Apr 20 – June 15 in Rutland.

In fall, June 1 – July 20.

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

Swiss chard planting dates by place in Vermont
PlaceSpringFall
BurlingtonApr 15 – June 15June 1 – July 20
Essex JunctionApr 15 – June 15June 1 – July 20
RutlandApr 20 – June 15June 1 – July 5
South BurlingtonApr 15 – June 15June 1 – July 20

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 swiss chard.