The photo above is of a choice that has not gone so well and is a "morality play" about the potential problems with "passalong" plants (those plants given you by an enthusiastic gardener friend). Most of the passalong plants I have been given are great: day lilies, iris, sedums. But this one not so much. The grassy foliage above is river oats. I was initially charmed by the cool, draping seed heads of this plant, sort of like draping oats or wheat, and for years I used it in flower arrangements. But it grew and spread and, if I don't continue dig it out, my garden will consists of it and obedient plant, another passalong (luckily obedient plant is easy to pull). We had a wet spring, thank goodness, which enabled me to remove almost all of the river oats, but do your research before you plant it!
So, we gardeners make good choices and bad ones, and have to deal with the consequences. Hum, I guess that is like life in general!