This is growing right next to the foundation, probably beneath the foundation...cuz I'd tried to dig and move it 6 years ago and looked like I would kill it in doing so...tried again this past Winter, no luck....so I've left it...leaf looked awfully familiar, thought it to be something worthwhile, walked past there a few minutes ago and...Oh my !! It's a Philadelphus !! ADORE Philadelphus ! I think that since I limbed up the Cameliia blocking it, the extra light has brought it to life...going to leave it where it is and thin out the branches on the camellia, which I'd planned to do anyway....yay !!