A friend of mine in Boston is in the market for a house. He invited me to see one that he is considering; to give it my critical "fixer's eye." I'll spare you my assessment, but I did name all the plants in the yard -garlic mustard, Japanese knotweed, and day lily.
His broker invited us to the open house of a 1.3 million dollar home on the other side of Dedham. The home had a waterfall that could be turned on or off, rockface inside the house, and so many levels and quarters I hardly knew where I was. But it also had purple loosestrife blooming in the gutters. That, my friends, is a serious plant. And if you're serious about selling your home, I highly recommend weeding the gutters.