Use a very small pliers or knife or something to undermine it at the trunk - but be VERY careful to stay horizontal or you could damage roots - and once you get a bit pried up, you can peel back the rest with your fingers, and if necessary replace any soil that might come away with the chunks.

Cut off all you can with pruners or loppers. Take an axe or saw to the main trunk. Use the axe or some other tool to bash up the main trunk in the ground. Keep on top of the suckers for this plant. If you do nothing else, it might die. However, you can also use the same methods that some people use for larger trunks. Drill holes into it and keep it moist (easy since you will be watering in this general area also), and let water and heat help it to decay. You can also buy stump remover liquids that are organic or safe for your veggie garden. In the winter, several months from now, it might be weak enough to where you can pull it from the ground. Otherwise, work at it a little more with the axe. You might also resituate a few hostas during this time so they don't get mangled while you are pulling up the trunk and roots.

It took me a month but I did call a glass company and the mirror is now gone! It was funny, I called around and got quotes for $200, $150, and $75. I asked the guy who would do it for $75 to come and do the job. I explained that it was 81 inches by 67 inches but I think his English was limited. He showed up today all alone! So he said, "That's too heavy for one person." and I thought he went to his truck to call in backup. He came back with his ladder and a suction cup and started to yank this huge 1/4 inch thick mirror off the wall. It popped right off with about 6 repositions of the suction cup. He asked if I wanted it in my garage. I said, "No, you're going to haul this away for me." He said, "No, I will cut it up and put it in the garbage." I was skeptical but I went with it. Then it was loose and he kept saying, "This is too heavy for one person. It weighs 300 pounds." So I watched as he cut the mirror into two pieces and lowered them to the floor. He cut those into long strips. Then he carried the strips outside where he found three trash cans on the cul-de-sac to spread the weight (it was trash day, yay!) and cut the strips into small pieces. The trash truck rolled by within the hour so my neighbors will never know that we borrowed their cans. There are some circles of mastic remaining on the wall, no big deal. The mirror was glued to the builder's original beige primer, so we know it was original to the house (1985). I have a painter coming in an hour to give me an estimate, I'm so glad it is not a huge mess for him. Thank you to everyone who weighed in on this project! I wanted to pick a paint color before I removed the mirror and that took me a month! We chose Benjamin Moore Concord Ivory- I can't wait until it's done!

Either one should work-- Goof Off or Goo Gone. As for hurting the tile or grout, the worst that should happen is a temporary oil stain on the grout. But that'll eventually disappear in a few weeks. As for the azor scraper, I'm not talking about one of those holders for a ingle edged razor blade. If you go into the paint dept. at just about any hardware store, you'll see what's called a 4" razor scraper. It's about a 14" handle with a head that holds the blade, and allows you to put some "beef" behind it as you're scraping. I'm not sure the Goo Gone or Goof Off will remove anything other than residue.