Excellent job! @Odin's Gma, you are a gardening queen! Love the hibiscus; they're beautiful! Odin is a very lucky little dude.
Another option is the Hibiscus moscheutos species. It's often called "rose mallow" as well. It dies back in the winter but returns in the spring. It has bigger flowers than H. syriacus but won't get as big. It may be more difficult to find at nurseries. I might try to grow this one inside. I have one in my tort's outdoor enclosure.
If you're in Missouri, you'll want the Hibiscus syriacus variety. It should do great there. The stem will be woody so it can survive the winter, down to zone 5 hardiness, in fact. We have one in our backyard here in Michigan. It's commonly called "rose of Sharon," "althea," or "rose mallow." FYI, it can grow up to 12 feet so make sure you have room for it.I will be bringing lots of stuff inside during the next week or so, too; it's dipping into the 40s here in MO.
I can't seem to get Tropical Hibiscus to live year to year. The one I tried last year made it all through the winter, then died shortly after putting it out in the spring(I tried to gradually reintroduce it outside a few hours a day).
Another option is the Hibiscus moscheutos species. It's often called "rose mallow" as well. It dies back in the winter but returns in the spring. It has bigger flowers than H. syriacus but won't get as big. It may be more difficult to find at nurseries. I might try to grow this one inside. I have one in my tort's outdoor enclosure.