Graveyard Moss; aka:
Stringy Stonecrop or Star Sedum
Hardy to zone 9
There are many names for this sedum, it is also known as Yellow Moss, Golden Moss, or Star Sedum because of it's star shaped blooms.
Very drought hardy. Absolutely wonderful if you need a plant that will cascade over a container.
Only plant this in your main garden, however,
if you have room for it to grow, as this sedum is a swift grower !