When to plant swiss chard in Delaware

Swiss chard
Sow outdoors in Wilmington
Mar 24–Apr 21

Across Delaware the window opens between March 21 and March 24. Find your city below; the dates follow each town's own average last frost.

Sow outdoors, Wilmington
Mar 24–Apr 21
Last frost, Wilmington
Apr 7

Sow outdoors from 2 weeks before to 2 weeks after the last frost. Cut outer leaves and the plant keeps going until hard frost.

Swiss chard planting dates by city

Start indoorsPlant outSow outdoorsFall plantingAverage last and first frost
JanFebMarAprMayJunJulAugSepOctNovDec
WilmingtonMar 24–Apr 21
DoverMar 21–Apr 18
NewarkMar 24–Apr 21
MiddletownMar 24–Apr 21
BearMar 24–Apr 21

Questions

When should I plant swiss chard in Delaware?

In Wilmington, sow outdoors from March 24 to April 21. Across Delaware the window opens between March 21 and March 24, depending on the local last frost.

How is this date worked out?

Sow outdoors from 2 weeks before to 2 weeks after the last frost. Frost dates are NOAA 1991–2020 averages for the weather station nearest each city.

More for Delaware

Swiss chard in other states

Frost dates for every city in Delaware