Talk:Ken Kaneki/@comment-3173617-20160817010606/@comment-76.5.82.216-20160820193831

That flashback didn't take place in the Garden. Kaneki mentally projects flowerfields whenever he and Arima engage in combat against one another.

That said, there's a possibility he knows some of the Zero Squad members from his time in the squad. I doubt he knows the three whose faces were revealed, though. He'd have likely named them if he did.