Not my cup of tea but not the worst I've heard either. It does indeed seem to be rising in popularity. While I know the
Harry Potter character is super well known, it's not like Rowling invented the name. It has a whole history dating back way further than that. But I also admit that may be easy for me to say since I've never been heavily into HP.
Ginevra is the one name I could see myself possibly using.
Lavender is lovely, too, though. Not feeling
Hermione or
Sirius so much.