I was born and raised near Rochester, New York, and every Spring/Summer they had a Lilac Festival, and it was awesome!!

It was a fun, hippie-ish music festival (I remember seeing Jack Johnson perform there before he got mildly successful!), all in the middle of high trees, and walls of gorgeous, pink/purple lilacs. And the smell throughout the whole area was so incredibly amazing, it's hard to describe.

Ha, TL:DR - If you ever get a chance to go to a 'Festival' named after a flower or tree, definitely go!