I have a ten year old camellia, roughly 5 foot tall. After the extreme weather it is noe just a mass of bare branches. I noticed at the weekend, in a nearby National Trust garden, that 3 camellia's all of a similar size of mine were in the same condition. I have asked various people including a gardener at the NT garden whether the camellia was dead. Advised to wait until at least june to see if it will come back. Looks doubtful to me though.