My pink yarrow is out of control. My neighbors can barely get a swath going , meanwhile i get a 10x10 bed of it from a cutting.. this is a photo of what i pulled out today.. this is half of the yarrow i had in a 10x3 bed for hydrangeas.. its insane how it spreads in my soil. I put 5 or 6 tiny pieces in last fall and it took over. Wish someone around the binghamton area wanted some.. i hare to put it in yard waste. I love it but its in all of my beds and im out of room.