I've read that they are one of the worst to have it.. I dont have an answer for you on this one cause mine looks the same as yours.. I keep my tropicanna away from other cannas and only use scissors to cut anything off of it, not to damage my tools.. But would love to know if i'm safe to plant them with other ones next year.. I'm sure one of the more know canna breeders can help you and i out with this one...
Sure thing peony. I won't be in Houston for about 4 months ..maybe sooner for school shopping for my daughter. We usually stop in at the First Colony Mall. I will keep in touch and let ya know when I will be in your area. If yours turn out virused no problem. You can have some of mine anyway. My cannas have been here since approx the 1970's or so the neighbors say. I have them all trimmed up and looking great. NO signs of Virus at all that I can tell... I can have then checked at a nursery also. Actually in my opinion the foliage looks great here.
I didn't realize about canna disease when I got my first canna, which did have a virus and was planted off by itself. Now I have two from a good nursery and they appear to be fine.
The tropicanna I just bought at home depot a month ago and it appears most canna from the large box stores are virused. So I am going to say it is probably diseased. It is growing out front in a pot and will stay there until I have the nerve to kill it.