Thanks for the support everyone! I had a lot of fun with this one.
This is actually the second go at the moss. Some how sunflower seeds had gotten into my soil mix. I spent what seemed like hours picking through it and thought that I had removed all the seeds. I set the planting outside in the shade to recover. The next day after returning home from work I found the moss scattered all over the place. Of course I understood why. I decided to let them go at it untill they got them because they were not disturbing the trees. One of the seeds even sprouted! Can you imagine a sunflower sticking up out of the middle of this?
I plucked that one out. I let it set till the weekend then re did the moss. Then I applied a dusting of red pepper powder and moved it to a different location. They have not bothered it since (knock on wood).
Newt