It fits so well, though - there are enough meaningful flowers in the show, especially in the first half of season one, that it feels like giving them more explicit meanings can slide almost seamlessly into what's already there.

Yes! The star laces for Adira. I like the incorporation of the death blossom, too. (And Londo not introducing flower invective to the Centauri court, which given the extant toxicity levels was probably just as well.)