Now that we have had 2-3 days of frost in the S.East of England I want
to ask if there is a chance my dahlia tubers will survive if I do not
lift them for overwintering.. Most of the foliage started to whither
after the cold temps so I've chopped the plant down to about 2-3 inches
above ground level. I would like to leave the tubers underground but
fear the wet weather / frost will do permanent damage. What would be
the best form of outdoor protection for the tubers ? Roughly what
chances do they have of survival ? Would covering the tuber area with
grass cuttings / peat / compost offer some sort of protection from the
frost ? Any past experiences from "urglers" would be most helpful. I
have to get on the case fairly rapidly as there is widespread hardfrost
forecast for the next few days. Thanks.

Uncle-C