I chopped the heck out of that fennel today, pulled out all the seedlings and tied the remainder up to the fence. I should've stayed more on top of it. There was one very dead perennial under it (I don't remember what it was), and a seriously struggling campanula and leggy artemesia.
The bees were all hovering around as I chopped, as if to say, "Hey, I'm still working on that!"
Sadly, that now-dead birch tree in the back yard is coming down tomorrow. I will miss its shade and its screening from the neighbors.
I'm thinking of putting a linden in its place.