This is a beautiful sasanqua I have this growing on a front east facing wall of my home espaliered. It is only about 4 years old. I used to work for a lady in South Georgia and she has two older ones espaliered on brick north facing walls. I was the gardener and pruned them religously ever year at least three times. Every time I pruned the 3-4 inches of new growth would harden and put out another flush of growth and I would repeat the pruning. Come late summer I would cease pruning and buds would set but they set according to pruning schedule the oldest growth first then continuing to the last growth the flower show would last over 3-4 months depending on whether conditions. It made a spectacular display every year.
James in Florida.