You have beautiful slabs of stones there, accumulated, I like them.
It is a very beautiful white rock. A fossil.
I think the plants you are placing are more resistant to heat, some of them confirm this with their beautiful flowers.
It gave me strange pain to see your hands. I don't cut my hands when planting, but my hands do get completely covered in thorns, even though I wear gloves.
This environment is looking great on you, I congratulate you!
RE: September Gardenjournal: the latest rockery in progress