I did a search, and found what ravencajun suggested. I followed her instructions and have no more ads. Good luck and I hope, it works for you too. Moni Here is a link that might be useful: ad blocker

Red hot poker , Kniphofia.

if you look in the hosta forum.. you will find that maples are the most hated trees to grow under ... it is a super competitor for water.. and will choke out.. most of anything but the most aggressive 'weed' plants ... bishops weed is one of those ... able to grow and thrive where nothing else will i would suggest you observe this year ... and make a decision in fall ... i wouldnt want you destroying perhaps your only option. only to find.. nothing else will grow there ... btw .. that doesnt look like norway maple bark ....???? but if you do decide you want to go in another direction ... do NOT dig that stuff up ... kill it with spray ... every severed maple root.. will be replaced by 2 or 3 new water sucking roots ... making the problem even worse ... trust me.. been there.. done that ... this just might be .. the perfect application of bishop weed... which actually.. hated as it is.. a nice looking plant .... the right place.. for the right plant.... ken

Japanese knot weed. They will spread like crazy and can grow up to 6ft I think. I also read that once you rip them out do not lay on the ground but rather into a bag or trash can because it will spread particles? and re grow in that area. They are really difficult to get rid of