No, if you look below the pot the ground is covered with ferns and they appear to be quite good at spreading their spores. I keep the soil of my bald cypress pretty wet and the moss does provide a very good substrate for those spores to sprout and grow. It is odd they they do grow at the base of the trees.
Time for another update. This summer has been cool compared to previous years and heat loving trees have not put on as much growth as in the past including my BC. The main opening on the front of the tree has closed more so that I can barely get the tip of my pinky finger into it. I hope that in couple of more uears it will be reduced to just a slit. The other cuts have been closing as well and I have been cutting back some of the longer branches in the crown to create a more compact look. Unfortunately this also reduces the photosynthetic mass in the crown providing less photosynthates to put into trunk growth. I’m sure some will notice the two prop roots on the rear of the tree. Those will be removed starting with the one on the right this winter/spring. I plan to leave the other one until the chop above it heals over then remove it. If you look at the edges of the openings you can see how much roll over growth has occurred tnis year. The almost black areas are from last year and the reddish brown edges are from this year.