amorecuore wrote: Perhaps people in your area heavily mulch them over the winter and they come back. It's more likely they either remove them and replant them in the same spots or they buy new bulbs and/or plants each year. "Cleopatra" is a medium/tall one. I've had some down here that have grown up to 6 or 7 feet. They consume quite a bit of space here over time, because they keep sending up new stems and foliage continuously. Not likely they will continue to grow inside during the winter because they like lots and lots of sun. Here's a photo of my Canna "Australia" this morning. It produces bright red blooms.