That's what I assumed. I just set up a couple bog gardens within the past couple of months and it took me awhile to figure out how I wanted to do everything so the lower growing species (VFT and Drosera) wouldn't get shaded out. It was my first time, and took awhile before I finally decided how I wanted it done. I'll probably still end up re-arranging eventually!
Thank you! Retrievers are such great dogs.