I disagree that the range of coconut palms is "general knowledge", as you stated in your revert. When a claim is challenged or removed as unsourced or original research, such as, "Bermuda generally marks the northernmost limits of coconuts palms [sic.]...", it needs to have a source cited for verifiability.
I have found and added an inline cite from the Bermuda Weather Service stating that the lowest recorded temp. there is 45 °F. talk 06:42, 25 September 2009 (UTC)