When to plant swiss chard in Oklahoma

Sow outdoors in Oklahoma City

Mar 21–Apr 18

Across Oklahoma the window opens between March 1 and March 28. Find your city below; the dates follow each town's own average last frost.

Sow outdoors, Oklahoma City: Mar 21–Apr 18
Last frost, Oklahoma City: Apr 4

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

Oklahoma CityMar 21–Apr 18

TulsaMar 17–Apr 14

NormanMar 20–Apr 17

Broken ArrowMar 18–Apr 15

EdmondMar 27–Apr 24

LawtonMar 12–Apr 9

MooreMar 17–Apr 14

Midwest CityMar 19–Apr 16

EnidMar 23–Apr 20

StillwaterMar 22–Apr 19

OwassoMar 17–Apr 14

BartlesvilleMar 28–Apr 25

MuskogeeMar 24–Apr 21

BixbyMar 18–Apr 15

ShawneeMar 16–Apr 13

JenksMar 16–Apr 13

YukonMar 19–Apr 16

ArdmoreMar 1–Mar 29

MustangMar 21–Apr 18

Ponca CityMar 27–Apr 24

SapulpaMar 16–Apr 13

DuncanMar 11–Apr 8

DurantMar 17–Apr 14

Del CityMar 19–Apr 16

El RenoMar 23–Apr 20

ClaremoreMar 24–Apr 21

Sand SpringsMar 16–Apr 13

BethanyMar 19–Apr 16

Questions

When should I plant swiss chard in Oklahoma?

In Oklahoma City, sow outdoors from March 21 to April 18. Across Oklahoma the window opens between March 1 and March 28, 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 Oklahoma

Swiss chard in other states

Frost dates for every city in Oklahoma