Quote:
Originally Posted by OldDartmouthMark
Hopefully he had a back up plan for a friend or relative to come by and cover them up.  It would be a shame to lose them for one night and one day of arctic-like temperatures...
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It's not clear this is beyond what those palms can take. If they are t. fortunei they're originally from mountainous subtropical areas (not true tropical palms) and some commenters have said the trees have survived -26. I doubt it actually was -26 in a sheltered location by somebody's house around town. Halifax Dockyard got down to -23.5, likely the coldest since the station was set up in 2004, maybe by a big margin. It was below -20 for 14 hours. I wonder if the bigger survival challenge for palms in NS isn't to do with snow and ice, rot, and maybe just the length of winter or ratio of growing season to winter. I think if people try to develop suitable varieties of these palms and practices they will become easy to grow eventually.
Baccaro Point got down to -19.5. Some daily records may have been set but doesn't look like all-time records were set and the spread of low temperatures is about what we'd expect. -26 in Baccaro would be surprising. To keep this in perspective, Vancouver has gotten down to -17.8 and this past December hit -13.5. This cold snap also seems much shorter than the worst ones of the 90's and early 2000's.
If this is a once in 30 year event at this point and it kills palm trees it's possible to just plant new ones. It's pretty common for people to push marginal exotics that die back once in a while. Of course, the probabilities are always just an estimate and the climate is changing.