The first casualty was the much talked about Aloe polyphylla, it went into a slow decline its second year and was eventually moved. It was from this I learned that succulents can hang a long time but fungicides and a good environment can`t always save a plant.
There have been successes, a sedaveria of unknown name has grown so well it has wandered out of the raised bed and has become a ground cover for a native viburnum. It has stopped spreading(it drops leaves which then root) when it hit the point where a puddle forms from roof run off. Another is Aloe humilis, a little clustering plant that grows as well in the raisd bed as it does in the regular soil.
The background plant is the Othona, the foreground is Sedum bithyncum and a Manfreda sp.
Another happy plant is Othona cherifolia from north Africa. A winter bloommer with small yellow daisies flowering over a long period, the plant is so fast that after each bloom eriod I cut it back and throw the clippings around the yard and see what survives. About half the time the clippings rot and grow.