I think this is wild valerium. It has been in the garden for 14 years now...We dug it up before the builders came....
Oh that summer..so many garter snakes died...and oh the little frogs that appeared everywhere in everyones driveways and window wells ......I saved as many as I could......I still check my window wells for frogs even though we have covers on them.....
I do what I can...and sometimes more