There aren't going to be any mature trees. All the trees are being planted in boxes or narrow, shallow trenches, so none of these trees will ever mature. They will probably live 15 years of stunted life and then die. Here is a photo of the trench the trees are going into on the Bedford...

"Like a little brown turd under a squatting gray man" - a review of the Lyle Studio facade on One Bedford in the West Annex News