Planting plantain for TP - seeds, transplanting?

I have a lot of plantain where I don't want it.  I want to grow some in an area near my pee-spot for TP.

Has anyone tried moving or planting plantain?
Or other recommendations for plants for zone 8 pee-spot?

Is your spot in mostly shade? Broadleaf plantain needs that to thrive. I have not tried transplanting, but have had succes with over seeding in locations where I wanted it.

Its a well drained spot - so while it gets lots of water in winter, it isn't usually marshy.  I'm moving it from an area about 20 feet away, so very similar.  I'll try grabbing seeds and overseeding!