I see this often you might want to add pine bark, oak leaves or any thing you can get to help get more acid soils. I am constantly working to lower my soil ph with loads of mulch.
Hey Karl, just thinking do you know anyone at McKee's? If so check with them I could hook them up with several plants if there is any interest. We had field trips to McKee Gardens as a school kid almost every year as a youngster.
We could solve this search the normal way. Pick some random plant name it Southern Cross make up a wonderful story of finding it in a roaring fire at some abandoned estate and swear a blood oath of truth.