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When to plant cilantro in zone 6b

In zone 6b, where the last spring frost typically comes around April 23, start cilantro indoors March 12 to 26 and plant out April 23 to 30.

The zone 6b schedule for cilantro

Start seeds indoors
March 12 to 26
Plant out
April 23 to 30
Sow outdoors
March 26 to April 30

From the median frost dates of the NOAA stations assigned to the 4,514 ZIP codes in zone 6b, and the timing recommended by Cooperative Extension guides for cilantro.

Frost risk in zone 6b

Zones are based on winter cold, not on frost dates, so the last spring frost varies a lot within a zone. Across zone 6b, the typical last frost ranges from about April 10 in the earliest tenth of ZIP codes to May 6 in the latest tenth, and the first fall frost from October 9 to October 29. For a typical place in the zone:

  • April 8Risky: a later frost happens in 9 years out of 10
  • April 23Typical: frost after this date in half of years
  • May 9Safe: a later frost only 1 year in 10

Your dates for cilantro

Set your ZIP code at the top of the page and we will work out when to plant cilantro 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

Cilantro in zone 6b cities

CityTypical last frostStart indoorsPlant out
Columbus, OHApr 18Mar 7 to 21Apr 18 to 25
Boston, MAApr 4Feb 21 to Mar 7Apr 4 to 11
Detroit, MIApr 21Mar 10 to 24Apr 21 to 28
Kansas City, MOApr 4Feb 21 to Mar 7Apr 4 to 11
Cleveland, OHApr 8Feb 25 to Mar 11Apr 8 to 15
Cincinnati, OHApr 16Mar 5 to 19Apr 16 to 23
Pittsburgh, PAApr 24Mar 13 to 27Apr 24 to May 1
Buffalo, NYApr 24Mar 13 to 27Apr 24 to May 1
Toledo, OHApr 20Mar 9 to 23Apr 20 to 27
Boise City, IDApr 24Mar 13 to 27Apr 24 to May 1
Spokane, WAApr 26Mar 15 to 29Apr 26 to May 3
Rochester, NYApr 24Mar 13 to 27Apr 24 to May 1

How to grow cilantroAll zonesCilantro in zone 6aCilantro in zone 7aAbout zone 6b

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