Some glories are more vigorous than others. Some may grow faster or have larger foliage than other varieties. If you mix the wrong varieties together, one variety may choke out or shade another variety. You must know their growth characteristics.
Glories can climb anything.
The only trouble it encounters is when it tries to grow up metal objects. The sun can make the metal too hot to climb or if the metal object is too shiny, the glorie can slip down repeatedly. All research says it must have full sun. Truth is they will grow in partially shaded areas but they will be stunted and will have few blooms. Full sun is best.