The main forsythia
This one was here in 1999 when we moved in. It was about 1/10th the size it is now, since I let it spread by layering, as it likes to do. However, I think it is about as big as needs to be.
Anna and her kids cleared out the middle a few years ago, and Star filled it with wood chips. Currently the middle part needs clearing out again, though it's fine for hands and knees.
Forsythia apparently has some property valued in Chinese medicene, but I've yet to find decent research material about it. It certainly does make nice yellow flowers in the early spring.
There are several other populations of forsythia, especially along the driveway. All came from sticking twigs from this one into wet spring ground.
Forsythia is not a native, and like bush honeysuckle, it casts a deep shade and very little grows underneath it. Fotunately, unlike bush honeysuckle, it does not spread by seeds from fruit that birds eat.