First frost

http://www.gardenerscorner.co.uk/forum/overwintering-begonia-tubers-t29934.html?t=29934

 

We had frost night before last and caused some damage to my dahlias I have taken most of the remaining flowers and put them in vases in the house such a shame we will have to wait until next year for these lovely plants again.
I am thinking of growing some chrysamthumums next year never tried before so it should be interesting I didnt realise that there are so many types,

 

If people have a few plants in pots, noticed that Wilkinsons have bags made of fleece (£1.99 for 4?) that will also protect your pots. I think they also have ties at the bottom. I lost a few pots last winter through frost damage - even in the tropical south in south Dorset!

 

They call these "Plant or tree Cosies" I've seen 'em a lot more expensive than that!

I think pots are in as much danger as plants. I lost three early this year. As they were 16" ones I took photos and went back to the garden centre where I'd purchased them only a few months before and showed the "jobsworth," (sorry, but many managers of retail outlets have no real authority these days).
I got the usual attempted "brush off" being told "They are only supposed to be frost resistant." I then produced photos of three other of exactly the same pots I'd bought at about the same time which were still in perfect condition and said; "Well these were, the others weren't." So after the expect phone call to head office, I got some replacements as "a goodwill gesture" I noticed they hadn't got any more of that type.

My theory is that pots can blast out through air being trapped in the thicker rims (as did mine) or crack due to the water in the compost expanding as it freezes and causing cracks.