JF my tree is growing 80 klms (50 miles) south of Brisbane in a well protected gully with good wind breaks in a well structured red/brown volcanic clay loam. The lowest temps it has felt were in 2007 when two very cold nights saw temp hit a min. of 3 and 3.5oC, two weeks ago saw the end of the longest really cold I have had here in 30 years. Min. temps were 3.6, 4.4, 7.6, 4.6, 5.4 and 5.4oC (38.5 - 45.9oF) over 6 nights, what made things worse were that temps were below 10oC by early evening so exposure to the cold was prolonged. The tree dropped a few older leaves and some of the older leaves look a bit yellow, but the new buds and young leaves that were pushing before the cold snap are growing and expanding fine 2 weeks after the event. The tree is about 18 years old and 35 or so feet tall, hopefully it will be another 30 years before I see another cold snap this bad again!