A few years ago I planted Morning Glories in front of my house. I love their vine-y goodness!
This year I noticed something growing and starting to travel up the side of the steps. Then it migrated onto the porch, then covered a wicker shelf I had on the porch and continued to march toward the door. Just as it seemed it would try to come into the house it started travelling upward again.
There are very few blooms, but it it is a morning glory plant. Yet another indication that everything wants to live and is striving to do so.