OK, so it’s not really called lavender sage. It’s Official Common Name is Musk Sage, but that’s just nasty.
Salvia clevelandii ‘Winifred Gilman’
Aromatic grey green leaves are topped with whorls of lavender blooms. The shrub will get to about 3 ft., and not an inch more.
It’s history is all Bay Area. First found in a Strybing Arboretum sale, later found growing in a Berkeley garden, and introduced into the nursery trade in 1990. This is considered by many to be a hybrid, unlike other more common varieties like “Allen Chickering”. On the other hand, “Allen Chickering” smells delicious.