Zone 9b planting calendar

What to plant in April: zone 9b

A rule-of-thumb starting point for zone 9b: last spring frost around February 15, first fall frost around December 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: February 15
Typical first frost: December 15
Winter lows: 25 to 30 °F
Zone 9b Almanac. What growers here actually recorded: sowing weeks, days to first pick, and yields.

Succession sow

  • Beet2 sowings: Apr 5 and Apr 26

    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.

  • Carrot2 sowings: Apr 5 and Apr 26

    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.

  • Bush beanaround Apr 12

    Sowing 4: replant every 14 days so one planting never has to feed you all season.

  • Cucumberaround Apr 12

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

  • Zucchiniaround Apr 12

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

  • Sweet cornaround Apr 12

    Sowing 4: replant every 14 days so one planting never has to feed you all season.

  • Basilaround Apr 12

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

  • Winter squasharound Apr 19

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

Garden care

  • Prune and stake tomatoes3 sowings: Apr 5 and Apr 12 and Apr 19

    Pull suckers and lower leaves for airflow. The main defense against blight in humid heat. Sowing again a few weeks later keeps the harvest coming instead of arriving all at once.

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.