Zone 9a planting calendar

What to plant in September: zone 9a

Zone 9a averages its last spring frost around February 28 and its first fall frost around December 5. 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: February 28
First frost: December 5
Winter lows: 20 to 25 °F
Zone 9a Almanac. What growers here actually recorded: sowing weeks, days to first pick, and yields.

Direct sow for fall

  • Bush beanaround Sep 3

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

  • Lettucearound Sep 4

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

  • Peaaround Sep 8

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

  • Cilantroaround Sep 9

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

  • Carrotaround Sep 9

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

  • Beetaround Sep 13

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

  • Dillaround Sep 13

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

  • Spinacharound Sep 25

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

  • Lettucearound Sep 25

    Succession sowing 2 of 3. Sow every 21 days for a steady cut.

  • Parsleyaround Sep 26

    Counts back 70 days from your first frost. Takes a light frost with cover.

  • Cilantroaround Sep 30

    Succession sowing 2 of 3. Sow every 21 days for a steady cut.

Start indoors for fall

  • Broccoliaround Sep 7

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

  • Kalearound Sep 24

    Seedlings need 4 weeks before they go out for a fall harvest.

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