Bog Sage
Salvia uliginosa
It’s hard to photograph the small blue flowers of this tall sage what with a wind and all. But I tried harder and harder until I succeeded. For you!
So what do we know about this sage? It’s tall – 4 to 6 ft. tall – and it’s hardy – down to -10F hardy (or 20F, depending on who you ask).
Good to know!
Do we know where it comes from? It’s native to southern Brazil, Uruguay, and Argentina. So, we do know. At least, Wikipedia knows and I know how to click through to Wikipedia and find out for myself.
Generally speaking as a garden plant it will perform best for you (i.e. the most and bluest flowers)if you cut it back hard, really right down to the ground, in winter.
Success!