Buckinghamshire, United Kingdom
I've read that Callistemon Rigidus is the hardiest for the British climate and that it is only hardy to -5degrees. Now there is something niggling at the back of my mind about something I read or heard years ago that somebody had discovered callistemon could withstand far more cold than was thought so long as they were growing in wet ground. This seems to go against all advice. Am I going mad or do I really remember this? Help to save my sanity please, lol.
- 24 Jul, 2010