Last Frost Date

Planting planner: Chattanooga, Tennessee

Typical last spring frost March 24 (1 spring in 10 later than April 8). Typical first fall frost November 9 (1 fall in 10 earlier than October 27). Growing season about 230 days.

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Frost likely Frost possible Frost unlikely Frost is likely until March 6 and fades out by April 8. It is unlikely from then until October 27, and likely again after November 26. The dashed lines are the typical dates, March 24 and November 9.

January

  • January 6 to February 3: Broccoli and cabbage (start seeds indoors)
  • January 20 to February 17: Cauliflower (start seeds indoors)

February

  • February 3 to 24: Eggplant (start seeds indoors)
  • February 10 to 24: Peppers (start seeds indoors)
  • February 17 to March 3: Tomatoes (start seeds indoors)
  • February 24 to March 10: Peas, spinach, lettuce, radishes, onion sets, turnips (sow outdoors)
  • February 24 to March 10: Broccoli and cabbage (plant out)

March

  • March 10 to 24: Beets, carrots, potatoes, Swiss chard (plant outdoors)
  • March 10 to 24: Cauliflower (plant out)
  • March 24: Snap beans, sweet corn, cucumbers, summer squash (sow outdoors)

April

  • April 7: Tomatoes, peppers, eggplant (plant out)
  • April 7: Melons, winter squash, pumpkins, lima beans (sow outdoors)

May

Nothing to start this month.

June

  • June 14 to 28: Cabbage for fall (start seeds)

July

  • July 4 to 18: Broccoli for fall (start seeds)

August

  • August 13: Snap beans for fall (last date to sow)
  • August 17: Carrots for fall (last date to sow)
  • August 18: Cucumbers for fall (last date to sow)
  • August 22: Peas for fall (last date to sow)
  • August 23: Summer squash for fall (last date to sow)
  • August 27: Leaf lettuce and beets for fall (last date to sow)

September

  • September 6: Turnips and kohlrabi for fall (last date to sow)
  • September 16: Spinach for fall (last date to sow)
  • September 26: Radishes for fall (last date to sow)

October

  • October 27: 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 Chattanooga Lovell Airport (station USW00013882), 4 miles from the center of Chattanooga. 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/tennessee/chattanooga/

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