opuntia strobiliformis not looking great
I have had this opuntia strobiliformis for a few years. It's been growing great, but never really looks great. The new segments are green and nice but then over time it starts getting dark and flaky and unsightly. It has been growing in full Southern California sun. According to some websites it requires full sun. But could it be too much? Or what's the secret to a good looking opuntia strobiliformis?
Your helps appreciated!