Zone 8b planting calendar

What to plant in August: zone 8b

Zone 8b averages its last spring frost around March 20 and its first fall frost around November 25. Everything below is timed from those two dates, so it stays useful whether you're planting for summer or for a fall harvest.

These are zone-average dates. Check an area-level frost estimate from thirty years of nearby weather history and this calendar retimes itself.
Last frost: March 20
First frost: November 25
Winter lows: 15 to 20 °F
Zone 8b Almanac. What growers here actually recorded: sowing weeks, days to first pick, and yields.

Start indoors for fall

  • Kalearound Aug 17

    Fall kale window opens. Sow trays any time in the next four weeks.

  • Broccoliaround Aug 28

    Seedlings need 5 weeks before they go out for a fall harvest.

Direct sow for fall

  • Parsleyaround Aug 19

    Fall parsley window opens. Sowing now beats the last-minute date by a month of growth.

  • Bush beanaround Aug 24

    Fall bush bean window opens. Sowing now beats the last-minute date by a month of growth.

  • Lettucearound Aug 25

    Succession sowing 3 of 3. Sow every 21 days for a steady cut.

  • Peaaround Aug 29

    Fall pea window opens. Sowing now beats the last-minute date by a month of growth.

  • Cilantroaround Aug 30

    Succession sowing 3 of 3. Sow every 21 days for a steady cut.

  • Carrotaround Aug 30

    Fall carrot window opens. Sowing now beats the last-minute date by a month of growth.

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