Zone 10b planting calendar
What to plant in August — zone 10b
Zone 10b averages its last spring frost around January 15 and its first fall frost around December 30. Everything below is timed from those two dates, so it stays useful whether you're planting for summer or for a fall harvest.
Last frost: January 15
First frost: December 30
Winter lows: 35 to 40 °F
A quiet month in zone 10b
August is a rest-and-plan month here. Use it to order seed, test your soil, repair beds, and map next season's rotation — then jump ahead to September.
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