This Petunia (that Bailey seems to like) is called "Bees Knees". It bloomed profusely for over 5 months and has a light fragrance. Late in September, the flowers finally slowed down to a single flower: https://pbase.com/britestar/image/173009231

However, by the beginning of October, the flowering immediately started all over again, and they have been increasing every day. It's been an amazing plant. The Chihuahuas have used it for Summertime shade. When the weather finally changes, I plan to Winter the plant indoors.