Zone 8b planting calendar

What to plant in September: zone 8b

A rule-of-thumb starting point for zone 8b: last spring frost around March 20, first fall frost around November 25. Zones are set by winter lows, not frost dates, so two gardens in the same zone can be weeks apart. Measure your ZIP below for dates from your area's own 30-year record.

These are zone-average dates. Check an area-level frost estimate from thirty years of nearby weather history and this calendar retimes itself.
Typical last frost: March 20
Typical 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.

Direct sow for fall

  • Beetaround Sep 3

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

  • Dillaround Sep 3

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

  • Spinacharound Sep 15

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

  • Lettucearound Sep 15

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

  • Parsleyaround Sep 16

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

  • Cilantroaround Sep 20

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

  • Bush beanaround Sep 21

    Counts back 55 days from your first frost. Frost-tender: must finish before frost.

  • Peaaround Sep 26

    Counts back 60 days from your first frost. Takes a light frost with cover.

  • Carrotaround Sep 27

    Counts back 70 days from your first frost. Frost-hardy: light freezes sweeten it.

Start indoors for fall

  • Kalearound Sep 14

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

Turn this into your own calendar

Want this calendar emailed to you?

Get the full 12-month version for your ZIP area. Every sowing, transplant, and harvest window, with reminders you can add to your calendar.

Build my free plan Find my zone & frost dates