Last Frost Date

Planting planner: Clarksville, Tennessee

Typical last spring frost April 6 (1 spring in 10 later than April 23). Typical first fall frost October 28 (1 fall in 10 earlier than October 15). Growing season about 204 days.

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Frost likely Frost possible Frost unlikely Frost is likely until March 20 and fades out by April 23. It is unlikely from then until October 15, and likely again after November 9. The dashed lines are the typical dates, April 6 and October 28.

January

  • January 19 to February 16: Broccoli and cabbage (start seeds indoors)

February

  • February 2 to March 2: Cauliflower (start seeds indoors)
  • February 16 to March 9: Eggplant (start seeds indoors)
  • February 23 to March 9: Peppers (start seeds indoors)

March

  • March 2 to 16: Tomatoes (start seeds indoors)
  • March 9 to 23: Peas, spinach, lettuce, radishes, onion sets, turnips (sow outdoors)
  • March 9 to 23: Broccoli and cabbage (plant out)
  • March 23 to April 6: Beets, carrots, potatoes, Swiss chard (plant outdoors)
  • March 23 to April 6: Cauliflower (plant out)

April

  • April 6: Snap beans, sweet corn, cucumbers, summer squash (sow outdoors)
  • April 20: Tomatoes, peppers, eggplant (plant out)
  • April 20: Melons, winter squash, pumpkins, lima beans (sow outdoors)

May

Nothing to start this month.

June

  • June 2 to 16: Cabbage for fall (start seeds)
  • June 22 to July 6: Broccoli for fall (start seeds)

July

Nothing to start this month.

August

  • August 1: Snap beans for fall (last date to sow)
  • August 5: Carrots for fall (last date to sow)
  • August 6: Cucumbers for fall (last date to sow)
  • August 10: Peas for fall (last date to sow)
  • August 11: Summer squash for fall (last date to sow)
  • August 15: Leaf lettuce and beets for fall (last date to sow)
  • August 25: Turnips and kohlrabi for fall (last date to sow)

September

  • September 4: Spinach for fall (last date to sow)
  • September 14: Radishes for fall (last date to sow)

October

  • October 15: Tomatoes, peppers, squash, melons, cucumbers (watch the forecast)

November

  • November 14 to 21: Garlic (plant cloves)

December

Nothing to start this month.

Dates from NOAA's 1991 to 2020 climate normals for Clarksville Outlaw Airport (station USW00003894), 6 miles from the center of Clarksville. 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/clarksville/

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