We stopped in at Cypress Gardens in South Carolina a few weeks back during a vacation to Charleston. Its got a nice black cypress swap tour. Saw a bunch of alligators, osprey nest... but the main reason i wanted to go was the CP bog.
It's not a natural site. Per the boat guide when we were taking the swamp tour, it was installed by the curator 10 years back and has spread a bit, but they don't really do anything to it. The bog is not tended too well, but i have never seen CPs (kinda) in-situ so it was cool to see. I will say, the mosquitoes where absolutely insane. My wife just picked up our 3 year old and said... "i will see you at the car" and took off running once we got to the site. They appear to be standard flavas but there was a cluster of a copper top version.
When i questioned the boat guide about the CP's at the gardens he then also scooped of what i originally though was standard floating pond plants and pointed them out as being a bladderwort. He said it's great to seem them when they are all in bloom.