Lily of the Nile :: Agapanthus :: Color Challenge - Sunday Purple

Down in Florida at a recent trip to Disneyworld, the giant entry plaza to Epcot Center is full of banks of these Lily of the Niles (Lilies of the Nile? Lilies of the Niles? No idea...). They grow under the shade of smooth-trunked crepe myrtles, creating a vibrant view and pleasant aroma.

As always, my guesses as to the genus and names of the various plants are a learning experience for me, but it's fun to track down these bits of knowledge. If I guessed wrong, all the plant lovers out there are invited to correct me.