Yes,that sounds really great.I heard that in Russia,giving flowers as a gift is really usual.And maybe it will be a really good idea because they always get something else.They might get surprised because of the flowers.:)
Writing as a member of the male species, while I would act very grateful for the gesture, inside I would be asking, "What am I supposed to do with these?" Men are generally more pragmatic about things than women (not to stereotype--just an observation). We like stuff that can be used, but doesn't wilt, die and stink in a few days (actually my wife and I are of the same mind on this). We are more interested in action stuff (like tickets to an event, or a claw hammer). But like I said, you can't go wrong--even with flowers--if he likes you anyway, and he feels it is something you feel is special for him.