What to sow and plant in December
7 crops on the list have something to do in December at 50.0°. These dates are not a fixed calendar: they are calculated from the estimated last spring frost for this latitude, so they move with your location.
The first autumn frost has usually passed at this latitude. What goes in now is either fully hardy, overwintering, or under cover — and clearing spent crops now removes next season's disease inoculum.
Sow direct outdoors(1)
Sown where the crop will grow. Soil temperature decides this more than the calendar does, so check the figure on each crop page before sowing.
Ready to harvest(6)
An approximate window from the sowing dates above. Each crop page carries the physical cue that beats any date.
What to watch for in December
Problems the database lists for this part of the year, most damaging first. Each one calculates live risk for your location on its own page.