FrostCal

When to Plant Swiss Chard in Delaware

In a typical Delaware location, sow outdoors Mar 17 – Mar 31. Across the state, the outdoor planting window starts as early as Mar 9 in Claymont and as late as Mar 29 in Hockessin.

Method Direct sow
Days to maturity 50–60 days

Fairly cold-hardy; direct sow 1-3 weeks before last frost. Tolerates light frost in fall too.

Swiss Chard Planting Dates by City

CityDirect sow
WilmingtonMar 17 – Mar 31
DoverMar 14 – Mar 28
NewarkMar 17 – Mar 31
MiddletownMar 17 – Mar 31
BearMar 17 – Mar 31
BrooksideMar 17 – Mar 31
GlasgowMar 17 – Mar 31
HockessinMar 29 – Apr 12
SmyrnaMar 14 – Mar 28
Pike Creek ValleyMar 17 – Mar 31
MilfordMar 21 – Apr 4
ClaymontMar 9 – Mar 23
North StarMar 17 – Mar 31
Pike CreekMar 17 – Mar 31
Wilmington ManorMar 17 – Mar 31
SeafordMar 21 – Apr 4
GeorgetownMar 14 – Mar 28
ElsmereMar 17 – Mar 31
EdgemoorMar 17 – Mar 31
New CastleMar 17 – Mar 31

Showing the 20 most populous of 20 Delaware cities. Dates are estimates from each city's NOAA frost normals and university extension timing guidelines. See all Delaware cities.

Frequently Asked Questions

When should I plant Swiss chard in Delaware?

In a typical Delaware location, sow outdoors Mar 17 – Mar 31. Across the state, the outdoor planting window starts as early as Mar 9 in Claymont and as late as Mar 29 in Hockessin.

When is the last frost in Delaware?

The average last spring frost in Delaware ranges from March 30 in Claymont to April 19 in Hockessin, based on NOAA 1991–2020 climate normals.

How long do Swiss chard take to grow?

Swiss Chard typically take 50–60 days from planting to harvest. Fairly cold-hardy; direct sow 1-3 weeks before last frost. Tolerates light frost in fall too.

Other Crops in Delaware

When to plant Swiss chard in other states

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