Zone 6b planting calendar

What to plant in June: 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.

Succession sow

  • Bush bean2 sowings: Jun 6 and Jun 20

    Sowing 3: replant every 14 days so one planting never has to feed you all season. Sowing again a few weeks later keeps the harvest coming instead of arriving all at once.

  • Winter squash2 sowings: Jun 6 and Jun 27

    Sowing 2: replant every 21 days so one planting never has to feed you all season. Sowing again a few weeks later keeps the harvest coming instead of arriving all at once.

  • Sweet corn2 sowings: Jun 6 and Jun 20

    Sowing 3: replant every 14 days so one planting never has to feed you all season. Sowing again a few weeks later keeps the harvest coming instead of arriving all at once.

  • Beetaround Jun 13

    Sowing 2: replant every 21 days so one planting never has to feed you all season.

  • Carrotaround Jun 13

    Sowing 2: replant every 21 days so one planting never has to feed you all season.

  • Cucumberaround Jun 20

    Sowing 3: replant every 21 days so one planting never has to feed you all season.

  • Zucchiniaround Jun 20

    Sowing 3: replant every 21 days so one planting never has to feed you all season.

  • Basilaround Jun 20

    Sowing 3: replant every 21 days so one planting never has to feed you all season.

Garden care

  • Side-dress heavy feeders4 sowings: Jun 6 and Jun 13 and Jun 20 and Jun 27

    Tomatoes, peppers, corn and squash get compost or fish emulsion once fruit sets. Sowing again a few weeks later keeps the harvest coming instead of arriving all at once.

Plan & order

  • Order fall seedaround Jun 17

    Fall brassicas and greens get sown in the heat of summer. Have the seed on hand before that window opens.

Start indoors for fall

  • Broccoliaround Jun 20

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

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