Hello John, I knew that Sydney Uni Jacaranda well. I must have passed it hundreds of times as a visitor and it was a beauty. However, I have to say that ours at the University of Queensland were much bigger and better and deeper coloured! Probably because the sub tropical climate suited them. I have seen other beauties in Buenos Aires which, I think , is their home territory. But flowering Jacarandas will always be remembered by Australian students as the sign that end of year exams were close on the horizon and then panic would set in.
The Jacarandas flower in late October into November which can be a time of intense thunderstorm activity. So that is another memory, the vivid purple lavender flowers under an equally vivid purple sky.