For the nox orchid, if you look at the PT Guide, Jazzo and Charley have done some really good guides.
![smile \:\)](/ubbthreads/images/graemlins/default/smile.gif)
To have a tier 4 plant, you may mutate a citrus to have an Arthurium, and a ball cactus to have a Glaber.
But also, don't forget to keep an eye on the seeds that are in the supplies!
![wink ;\)](/ubbthreads/images/graemlins/default/wink.gif)