Beautiful photo Baja. What fun it is to see different species of dudleya and now even crosses.
Marilyn, just think of where they grow in their natural habitat. The ones here in Oregon are growing on the very big rocks on the beaches. All of them I have seen have been on the east and northeast sides of the rocks. They get daily moisture for the morning mists and rains along the coast. Here is a picture using a telephoto lens. This was way up about 15 or 20 feet from the beach.
And this is Cliff standing down the beach from one of the rock formations. You can see the colony of dudleya on the rock behind him. If he walked up to that side of the rock it is about 15 to 20 feet above his head. There are also Sedum spathulifolium growing through the dudleya. It was beautiful to see. This is the D. farinosa species with lovely powdery coating.