Planting planner: Roseville, California
Typical last spring frost February 22 (1 spring in 10 later than April 1). Typical first fall frost November 24 (1 fall in 10 earlier than November 9). Growing season about 277 days.
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Frost doesn't come every year here: about 99 years in 100 have at least one freezing night. The calendar is built on the dates for the years that do.
We don't give a garlic date here. The rule we use, from the University of Minnesota Extension, counts from the first killing frost, and it works where a hard freeze comes every year before the ground freezes. Your county's extension office can tell you when to plant garlic in your climate.
January
- January 4 to 25: Eggplant (start seeds indoors)
- January 11 to 25: Peppers (start seeds indoors)
- January 18 to February 1: Tomatoes (start seeds indoors)
- January 25 to February 8: Peas, spinach, lettuce, radishes, onion sets, turnips (sow outdoors)
- January 25 to February 8: Broccoli and cabbage (plant out)
February
- February 8 to 22: Beets, carrots, potatoes, Swiss chard (plant outdoors)
- February 8 to 22: Cauliflower (plant out)
- February 22: Snap beans, sweet corn, cucumbers, summer squash (sow outdoors)
March
- March 8: Tomatoes, peppers, eggplant (plant out)
- March 8: Melons, winter squash, pumpkins, lima beans (sow outdoors)
April
Nothing to start this month.
May
Nothing to start this month.
June
- June 29 to July 13: Cabbage for fall (start seeds)
July
- July 19 to August 2: Broccoli for fall (start seeds)
August
- August 28: Snap beans for fall (last date to sow)
September
- September 1: Carrots for fall (last date to sow)
- September 2: Cucumbers for fall (last date to sow)
- September 6: Peas for fall (last date to sow)
- September 7: Summer squash for fall (last date to sow)
- September 11: Leaf lettuce and beets for fall (last date to sow)
- September 21: Turnips and kohlrabi for fall (last date to sow)
October
- October 1: Spinach for fall (last date to sow)
- October 11: Radishes for fall (last date to sow)
November
- November 9: Tomatoes, peppers, squash, melons, cucumbers (watch the forecast)
December
- December 7 to January 4: Broccoli and cabbage (start seeds indoors)
- December 21 to January 18: Cauliflower (start seeds indoors)
Dates from NOAA's 1991 to 2020 climate normals for Sacramento Metro Airport (station USW00093225), 15 miles from the center of Roseville. 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/california/roseville/