Having resisted multiple winters and continuing to grow (most showed little to no damage), I have no doubt they will grow to be some of the hardiest Sabals in existence. The offsprings of these strands will only get hardier and adapt better to the climate so I 100% believe Sabal is permanently here to stay. I know that most of these trees have come from Florida or other nurseries much further south and this isn’t an extension of range occurring naturally from its NC counterparts. But I think the range for this tree has officially crossed the state line.