Liverworts and mosses, frisky

We have a flower box that we've left to its own devices for a couple of years. I couldn't bring myself to dig it up last year when I discovered Marchantia (liverworts) growing there. They and the mosses around them are competing for space and, once again this year, I may not dig it up. Right now, as summer is pulling up its socks, they are all trying to reproduce, so it's exciting.