Listed here are Wild Foods that should be available in parts of the UK in January.
Buck's Horn Plantain (coastal)
Pennywort (particularly good at the moment)
Alexanders (very good at the moment)
Chirvil (be very careful , as Hemlock Water-Dropwort is starting to sprout now and looks very similar, but is deadly poisonous!)
Rock Samphire (still usable, but a bit over now, coastal)
*These are just some of the wild edibles you will find in the UK this month.