Katie59
Beetroot won’t survive a very hard frost more than about -3C, surprisingly the last of my carrots seem OK, Brussels sprouts look tatty but are still good as is purple sprouting and cabbage,
here we had -12C
Quite a few shrubs in the garden look rather dead - we will see.
In that case, yes, it must have been the frost.
That said, some years I've left beetroot that I've lifted in early winter sitting outside my back door for most of the winter without it sustaining any damage , even though we get frequent night temperatures lower than -3°C here every year.
I'm guessing that it was the prolonged freezing spell where even daytime temps stayed below zero that did the damage this year. Or the variety.
I'll have to be a bit more careful next year.