Does the "flower's name" myth have a real-world basis?
In the manga, Hide says:



Which roughly translates to "but doesn't that sound a bit untimely?" Which probably refers to the fact that flowers lead short lives. Perhaps drawing indirectly from what Lord Capulet says in Romeo and Juliet? 


  "Who said death lies on her like an untimely frost upon the sweetest flower of all the field?"


Luckily, the dad suggests: 

"Fruit would be better." Perhaps referring to the kittens being young, while keeping with flower subject.