Last Frost Date

Planting planner: Eugene, Oregon

Typical last spring frost April 11 (1 spring in 10 later than May 9). Typical first fall frost October 23 (1 fall in 10 earlier than October 6). Growing season about 196 days.

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Frost likely Frost possible Frost unlikely Frost is likely until March 15 and fades out by May 9. It is unlikely from then until October 6, and likely again after November 13. The dashed lines are the typical dates, April 11 and October 23.

January

  • January 24 to February 21: Broccoli and cabbage (start seeds indoors)

February

  • February 7 to March 7: Cauliflower (start seeds indoors)
  • February 21 to March 14: Eggplant (start seeds indoors)
  • February 28 to March 14: Peppers (start seeds indoors)

March

  • March 7 to 21: Tomatoes (start seeds indoors)
  • March 14 to 28: Peas, spinach, lettuce, radishes, onion sets, turnips (sow outdoors)
  • March 14 to 28: Broccoli and cabbage (plant out)
  • March 28 to April 11: Beets, carrots, potatoes, Swiss chard (plant outdoors)
  • March 28 to April 11: Cauliflower (plant out)

April

  • April 11: Snap beans, sweet corn, cucumbers, summer squash (sow outdoors)
  • April 25: Tomatoes, peppers, eggplant (plant out)
  • April 25: Melons, winter squash, pumpkins, lima beans (sow outdoors)

May

  • May 28 to June 11: Cabbage for fall (start seeds)

June

  • June 17 to July 1: Broccoli for fall (start seeds)

July

  • July 27: Snap beans for fall (last date to sow)
  • July 31: Carrots for fall (last date to sow)

August

  • August 1: Cucumbers for fall (last date to sow)
  • August 5: Peas for fall (last date to sow)
  • August 6: Summer squash for fall (last date to sow)
  • August 10: Leaf lettuce and beets for fall (last date to sow)
  • August 20: Turnips and kohlrabi for fall (last date to sow)
  • August 30: Spinach for fall (last date to sow)

September

  • September 9: Radishes for fall (last date to sow)

October

  • October 6: Tomatoes, peppers, squash, melons, cucumbers (watch the forecast)

November

  • November 18 to 25: Garlic (plant cloves)

December

Nothing to start this month.

Dates from NOAA's 1991 to 2020 climate normals for Eugene Mahlon Sweet Airport (station USW00024221), 7 miles from the center of Eugene. 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/eugene/

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