People who visit us (fortunately there aren't many of them) ask what is this rare plant they can't identify. Some time ago we put an old plastic pot on the fence to use it for something later and it just stayed there. That plant is plain grass that just started growing in the pot. But since it's in its own pot in an exposed location, people think it must be something special.
@richardgrant It's magical enough the way it is. Any more and we'll have crowds of pilgrims coming here.