So Pennsylvania has the same problem as Virginia - its state flower isn't so much as a flower as a tree or bush. Virginia's state flower is the dogwood, which of course is a tree.
Now, they're both lovely, but it makes them a little hard to get from, say, a florist. There's a really funny scene in one of my favorite movies, The American President, where Michael Douglas wants to order the state flower of Virginia for a lady he has met who's from there. He's asking his office staff what the state flower is and they get into a discussion of whether the dogwood is a tree or a flower. Either way, the florist doesn't have them. Annette Benning is surprised to receive a Virginia ham!
I imagine you would run into the same problem with the mountain laurel flower - not something you can just pick up a bouquet of!