Zone 9a planting calendar

What to plant in May: zone 9a

A rule-of-thumb starting point for zone 9a: last spring frost around February 28, first fall frost around December 5. 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: February 28
Typical 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.

Succession sow

  • Winter squash2 sowings: May 2 and May 23

    Sowing 3: 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.

  • Beet2 sowings: May 9 and May 30

    Sowing 3: 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.

  • Carrot2 sowings: May 9 and May 30

    Sowing 3: 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.

  • Cucumberaround May 16

    Sowing 4: replant every 21 days so one planting never has to feed you all season.

  • Zucchiniaround May 16

    Sowing 4: replant every 21 days so one planting never has to feed you all season.

  • Basilaround May 16

    Sowing 4: replant every 21 days so one planting never has to feed you all season.

Garden care

  • Squash bugs, hornworms and cucumber beetles peak now: five minutes of hand-picking beats a rescue spray.

Turn this into your own calendar

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