Zone 6b planting calendar

What to plant in August: zone 6b

A rule-of-thumb starting point for zone 6b: last spring frost around April 25, first fall frost around October 15. 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: April 25
Typical first frost: October 15
Winter lows: -5 to 0 °F
Zone 6b Almanac. What growers here actually recorded: sowing weeks, days to first pick, and yields.

Start indoors for fall

  • Kalearound Aug 4

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

Direct sow for fall

  • Spinach2 sowings: Aug 5 and Aug 26

    Succession sowing 3 of 3. Sow every 21 days for a steady cut. Sowing again a few weeks later keeps the harvest coming instead of arriving all at once.

  • Lettuce2 sowings: Aug 5 and Aug 26

    Succession sowing 2 of 3. Sow every 21 days for a steady cut. Sowing again a few weeks later keeps the harvest coming instead of arriving all at once.

  • Parsleyaround Aug 6

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

  • Cilantro2 sowings: Aug 10 and Aug 31

    Succession sowing 2 of 3. Sow every 21 days for a steady cut. Sowing again a few weeks later keeps the harvest coming instead of arriving all at once.

  • Bush beanaround Aug 11

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

  • Peaaround Aug 16

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

  • Carrotaround Aug 17

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

  • Beetaround Aug 21

    Counts back 55 days from your first frost. Takes a light frost with cover.

  • Dillaround Aug 21

    Counts back 45 days from your first frost. Frost-tender: must finish before frost.

  • Radisharound Aug 29

    Succession sowing 3 of 3. Sow every 14 days for a steady cut.

Transplant for fall

  • Broccoliaround Aug 22

    Last safe transplant date to mature (65 days) before frost on 10-15.

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