The Impatient Tomato

There is a tomato plant growing in my impatiens in the window box outside my kitchen window.  How it got there and how it grew in the shade, I don't know.  I haven't had the heart to pull it out and it has actually grown taller.  I'm not expecting any fruit from it, but I do like it's tenacity.  It reminds me to be optimistic when I am waiting for circumstances to turn around.