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When to plant sweet corn in zone 8b

In zone 8b, where the last spring frost typically comes around March 17, sow outdoors March 17 to 31. For a fall crop, plant August 7 to 21.

The zone 8b schedule for sweet corn

Sow outdoors
March 17 to 31
Safest planting date (10% frost risk)
April 6
First harvest, roughly
May 16 to July 9
Plant for a fall crop
August 7 to 21

From the median frost dates of the NOAA stations assigned to the 2,613 ZIP codes in zone 8b, and the timing recommended by Cooperative Extension guides for sweet corn.

Frost risk in zone 8b

Zones are based on winter cold, not on frost dates, so the last spring frost varies a lot within a zone. Across zone 8b, the typical last frost ranges from about March 5 in the earliest tenth of ZIP codes to April 3 in the latest tenth, and the first fall frost from November 2 to November 24. For a typical place in the zone:

  • February 25Risky: a later frost happens in 9 years out of 10
  • March 17Typical: frost after this date in half of years
  • April 6Safe: a later frost only 1 year in 10

Sweet Corn are killed by frost, so if you want to be safe, plant out after the safe date rather than the typical one, or be ready to cover plants on a cold night.

Your dates for sweet corn

Set your ZIP code at the top of the page and we will work out when to plant sweet corn where you live, from the frost records of the nearest NOAA weather station. Your ZIP code is remembered on this device only.

Enter your ZIP code

Sweet Corn in zone 8b cities

CityTypical last frostPlantFall
San Antonio, TXFeb 26Feb 26 to Mar 12Aug 22 to Sep 5
Dallas, TXMar 2Mar 2 to 16Aug 23 to Sep 6
Fort Worth, TXMar 11Mar 11 to 25Aug 13 to 27
El Paso, TXMar 2Mar 2 to 16Aug 14 to 28
Las Vegas, NVJan 20Jan 21 to Feb 4Sep 8 to 22
Virginia Beach, VAMar 29Mar 29 to Apr 12Aug 6 to 20
Arlington, TXMar 9Mar 9 to 23Aug 15 to 29
Plano, TXMar 7Mar 7 to 21Aug 15 to 29
Irving, TXMar 2Mar 2 to 16Aug 23 to Sep 6
Garland, TXMar 7Mar 7 to 21Aug 15 to 29
Frisco, TXMar 18Mar 18 to Apr 1Aug 5 to 19
McKinney, TXMar 18Mar 18 to Apr 1Aug 5 to 19

How to grow sweet cornAll zonesSweet Corn in zone 8aSweet Corn in zone 9aAbout zone 8b

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