Mm. I think I'll keep it to myself. At the very least... it's a tasteless joke on the part of whoever set out that garden. It might not mean anything in the long run.

[ But then again. It might. ]

... Then again. Um. I'm basing most of this off what I know about Japanese flowers. Hanakotoba. If they're sending messages using a different kind of floriography then I might be looking in the wrong places for it.