Clerodendrum bungei
This is truly a beautiful looking plant; the blooms have a pleasant aroma. Don't know your location but
with waht plantladylin posted; if you live anywhere warm this plant becomes Godzilla and will take over the world. It will make a runner under the soil and appear 4 to 5 feet or more away, and then again, and then again. Be prepared to do some creative confining to keep the plant in check and you will be fine.
Oh, almost forgot to say...the butterflies love the nectar!
Serious offer: If anyone is in Savannah, Georgia feel free to stop by and pull up as many of these Clerodendrum bungei as you want; I started with one plant 3 years ago and now have more than 40...and those are just the ones I know about.