Zone 5b planting calendar
What to plant in December: zone 5b
Zone 5b averages its last spring frost around May 5 and its first fall frost around October 5. Everything below is timed from those two dates, so it stays useful whether you're planting for summer or for a fall harvest.
Last frost: May 5
First frost: October 5
Winter lows: -15 to -10 °F
A quiet month in zone 5b
December is a rest-and-plan month here. Use it to order seed, test your soil, repair beds, and map next season's rotation, then jump ahead to January.
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.