Yes, Glebb, there's more to Julie and lilacs than meets the nose. Check this out from a Playboy interview with Julie and Blake around the time SOB came out:
PLAYBOY: Since you're obviously that rare thing-a happy show-business couple- why don't we start by getting you to go for each other's throats? Blake, didn't you once make a particularly scurrilous remark about Julie's image-and wasn't that the reason you two met?
ANDREWS: Which scurrilous line of Blake's are you referring to? There are so many!
PLAYBOY: Something to do with violets?
ANDREWS: Wrong, all wrong. Lilacs! You'd better get into that one, Blake.
EDWARDS: Well, it all started one night when I went to a party -------
ANDREWS: Long before you knew me.
EDWARDS: Right. I hadn't met Julie yet, and at this party, there was a discussion about people who suddenly were catapulted into stardom and the reasons for it. When Julie's name was mentioned, I said something that leveled the whole room, and the next day, I got a call from Joan Crawford, who hadn't been at the party-and whom I'd never met-telling me it was the funniest line she'd ever heard. People had been conjecturing on and on about what made Julie successful, and at just the right moment, I said, "I can tell you exactly what it is. She has lilacs for pubic hair." After the laughter subsided, Stan Kamen, an agent with William Morris, said, "With your luck, you'll wind up marrying her." And with my luck, I did!
Full interview follows:
http://www.julieandrews.co.uk/article_playboy1_main.htm
It's too early for noches.