Last Frost Date

Planting planner: Salem, Oregon

Typical last spring frost April 3 (1 spring in 10 later than April 27). Typical first fall frost November 1 (1 fall in 10 earlier than October 16). Growing season about 212 days.

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Frost likely Frost possible Frost unlikely Frost is likely until March 10 and fades out by April 27. It is unlikely from then until October 16, and likely again after November 23. The dashed lines are the typical dates, April 3 and November 1.

January

  • January 16 to February 13: Broccoli and cabbage (start seeds indoors)
  • January 30 to February 27: Cauliflower (start seeds indoors)

February

  • February 13 to March 6: Eggplant (start seeds indoors)
  • February 20 to March 6: Peppers (start seeds indoors)
  • February 27 to March 13: Tomatoes (start seeds indoors)

March

  • March 6 to 20: Peas, spinach, lettuce, radishes, onion sets, turnips (sow outdoors)
  • March 6 to 20: Broccoli and cabbage (plant out)
  • March 20 to April 3: Beets, carrots, potatoes, Swiss chard (plant outdoors)
  • March 20 to April 3: Cauliflower (plant out)

April

  • April 3: Snap beans, sweet corn, cucumbers, summer squash (sow outdoors)
  • April 17: Tomatoes, peppers, eggplant (plant out)
  • April 17: Melons, winter squash, pumpkins, lima beans (sow outdoors)

May

Nothing to start this month.

June

  • June 6 to 20: Cabbage for fall (start seeds)
  • June 26 to July 10: Broccoli for fall (start seeds)

July

Nothing to start this month.

August

  • August 5: Snap beans for fall (last date to sow)
  • August 9: Carrots for fall (last date to sow)
  • August 10: Cucumbers for fall (last date to sow)
  • August 14: Peas for fall (last date to sow)
  • August 15: Summer squash for fall (last date to sow)
  • August 19: Leaf lettuce and beets for fall (last date to sow)
  • August 29: Turnips and kohlrabi for fall (last date to sow)

September

  • September 8: Spinach for fall (last date to sow)
  • September 18: Radishes for fall (last date to sow)

October

  • October 16: Tomatoes, peppers, squash, melons, cucumbers (watch the forecast)

November

  • November 29 to December 6: Garlic (plant cloves)

December

Nothing to start this month.

Dates from NOAA's 1991 to 2020 climate normals for Salem Mcnary Field (station USW00024232), 2 miles from the center of Salem. Planting rules: Colorado State University Extension GardenNotes #720 (spring), Virginia Cooperative Extension 426-334 (fall crops), University of Minnesota Extension (garlic). Spring bulbs: plant when the soil has cooled to about 50 to 55°F, until a couple of weeks before the ground freezes (University of Wisconsin–Madison Extension). Full details: https://lastfrostdate.com/frost-dates/oregon/salem/

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