One person's invader is another's volunteer.
We have several "invaders".......Matilija poppies, Mexican Primrose, Hypoestes aristata, Psoralea,
to name a few, and love them all.
The only one I try to eradicate is the asparagus fern.....should be against the law to sell them, imho.
But can hardly wait to get our Looseneck Goosestrifes.