bp greenroof

that's right british petroleum.
right off of key highway ... just missed getting the domino sugar factory in this post.
this roof is on top of a car wash.

strange habits of greenroof plants

Two examples from a roof in PA:
1) check out Sedum kamtschaticum (kam-SHAY-ti-kum dropping its leaves in the fall... nice strategy for overwintering and adding organic matter to the media...










2)look how well the Sedum do in the cracks around the roof edge... just as good if not better than some on the roof proper.. is this tolerance or what?