Planting planner: Oceanside, California
Typical last spring frost February 16 (1 spring in 10 later than March 18). Typical first fall frost December 8 (1 fall in 10 earlier than November 21). Growing season about 298 days.
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Frost doesn't come every year here: about 98 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 5 to 19: Peppers (start seeds indoors)
- January 12 to 26: Tomatoes (start seeds indoors)
- January 19 to February 2: Peas, spinach, lettuce, radishes, onion sets, turnips (sow outdoors)
- January 19 to February 2: Broccoli and cabbage (plant out)
February
- February 2 to 16: Beets, carrots, potatoes, Swiss chard (plant outdoors)
- February 2 to 16: Cauliflower (plant out)
- February 16: Snap beans, sweet corn, cucumbers, summer squash (sow outdoors)
March
- March 2: Tomatoes, peppers, eggplant (plant out)
- March 2: Melons, winter squash, pumpkins, lima beans (sow outdoors)
April
Nothing to start this month.
May
Nothing to start this month.
June
Nothing to start this month.
July
- July 13 to 27: Cabbage for fall (start seeds)
August
- August 2 to 16: Broccoli for fall (start seeds)
September
- September 11: Snap beans for fall (last date to sow)
- September 15: Carrots for fall (last date to sow)
- September 16: Cucumbers for fall (last date to sow)
- September 20: Peas for fall (last date to sow)
- September 21: Summer squash for fall (last date to sow)
- September 25: Leaf lettuce and beets for fall (last date to sow)
October
- October 5: Turnips and kohlrabi for fall (last date to sow)
- October 15: Spinach for fall (last date to sow)
- October 25: Radishes for fall (last date to sow)
November
- November 21: Tomatoes, peppers, squash, melons, cucumbers (watch the forecast)
December
- December 1 to 29: Broccoli and cabbage (start seeds indoors)
- December 15 to January 12: Cauliflower (start seeds indoors)
- December 29 to January 19: Eggplant (start seeds indoors)
Dates from NOAA's 1991 to 2020 climate normals for Camp Pendleton MCAS (station USW00003154), 6 miles from the center of Oceanside. 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/oceanside/