This is one of the newer available salvias and is one I particularly like although it is not really suitable for our colder weather. I don’t think it would die at minus 2C. It is okay in part shade.
The foliage is not especially exciting but the purple flower buds and calyces with the mid blue corollas in winter are very pretty.
It grows about 1.5m in a clump and is not hard to grow from cuttings.