I think Chamaerops are the palms that are most suited to bonsai because they don’t mind root pruning, can survive longer draughts and become over 100 years old.
I can present two examples which have suffered longer draughts, one has also survived the last German winter 2015/16 all time outdoors.
The older palm was grown up in 1986 from a seed of a Sicilian palm (Palermo). The first pic was taken in 2003 when the palm was 17 years old, the second pic is taken today, now 30 years old. Th