Just wanted to share the gorgeousness but if anyone can ID that would be great! He's about 3 feet tall.
More of the plant itself...
I believe your canna is widely sold in the Americas under the cultivar name as both Florence Vaughan and most recently as Yellow King Humbert. This cultivar was believed to have been introduced in the early 1900Ã¢ÂÂs from Europe under its valid name C. Roma.
Unfortunately, the canna appears to have virus. Look at mottling and yellow streaking.
It looks like Lucifier to me. I tried growing one several years ago and it got a virus in it.