2026 - What I did today.

Moved the tubs of mashua & oca into the GH. I may be too late to save these as the soil was frozen solid. Probably should rename them Mushua and Orribla.

The two Alstroemeria plants that I had in the tumbledown greenhouse at the allotment got soaked (the glass above was missing)and then they got frost damage. I brought them home and put them on the bedroom windowsill to dry out and took off the blackened leaves. They are tuberous and would have died if left methinks? They are now recovering nicely and have new green growth appearing!
I think your Oca will be ok (not familiar with mashua though?) Jerusalem artichokes seem to survive ok outdoors and are tuberous? (Having said that, so are dahlias and they deffo wouldn't survive.)
Time to shut up as I am just digging a bigger hole for myself!