I live in Toronto and have a wonderful if small south facing garden that gets tons of very hot summer sun. My hydrangeas, incrediball I believe they call them that develop huge pink balls, were still flowering to some degree 2 weeks ago due to this very mild fall but last weekend after a week of extreme cold and a dump of snow I went out to dead head them and put protective covers this year, and I discovered that all the branches have many chubby buds but that are in many cases starting to open and actually bloom again! What do I do about this? These buds will die of the cold but if I cut right back I'll get no blooms next year. Last spring I noted that all the little buds that were on the plant in winter (which had been very rigid) had turned black and were clearly dead. I cut it back drastically and they came back but with minimal flowers.