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When to plant daffodils in zone 4a

In zone 4a, where the last spring frost typically comes around May 13, plant August 17 to September 28.

The zone 4a schedule for daffodils

Plant for a fall crop
August 17 to September 28

From the median frost dates of the NOAA stations assigned to the 739 ZIP codes in zone 4a, and the timing recommended by Cooperative Extension guides for daffodils.

Frost risk in zone 4a

Zones are based on winter cold, not on frost dates, so the last spring frost varies a lot within a zone. Across zone 4a, the typical last frost ranges from about May 6 in the earliest tenth of ZIP codes to May 24 in the latest tenth, and the first fall frost from September 20 to October 3. For a typical place in the zone:

  • April 30Risky: a later frost happens in 9 years out of 10
  • May 13Typical: frost after this date in half of years
  • May 27Safe: a later frost only 1 year in 10

Your dates for daffodils

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

Daffodils in zone 4a cities

CityTypical last frostPlantFall
Fargo, NDMay 10—Aug 19 to Sep 30
Bismarck, NDMay 14—Aug 16 to Sep 27
Grand Forks, NDMay 10—Aug 20 to Oct 1

How to grow daffodilsAll zonesDaffodils in zone 3bDaffodils in zone 4bAbout zone 4a

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