First, the Tree Dahlia, Dahlia tenuicaulis. A Flickr friend posted a lovely shot (not this one though) and it reminded me how much I wanted to try this one. Not sure how it will react to the warm humid Houston summers but it should like cool wet winters!
Second, the Sunflower Tree or Tree Marigold, Tithonia diversifolia. I've seen it growing in Tampa so I know for sure it will handle Houston! The bush I saw there could easily have been called a small tree - it was 12 feet high and covered in butterflies. There is a possibility it is an invasive species, from some of the reading I have done. So I will need to read some more before I dive in. I've already lived (and we are STILL living) the nightmare called ruellia.
Do any of you have experience with these lovelies?