That is an interesting contrast, LOL. Glad to hear you & the neighbor are coexisting better!
Astroturf... not exactly a good choice for getting all those benefits of a "green roof!"
I'm continuing the chemical warfare against our poison ivy and have sprayed twice this year so far with Roundup Brush Killer... I think I'm winning along the back of our yard, but the stuff really got out of control with the mild winter... I'm doing along the back of the neighbor's fence also (with his permission & gratitude), where the stuff went from a few good patches to a solid 6 inch to waist high ground cover! He's going to have to have somebody in to clear away the dead leaves & vines, I think, then spray again anything that remains... there's just too much there.