I am not a flower arranger. I do not do arrangements. In fact, I don't have many flowers in my summer garden, so I rarely even think about making an arrangement. However, as a garden columnist and blogger, I am known as A Gardener. Surely, as A Gardener I ought to be able to find a few flowers to stick in a vase without disgracing myself. Thus, when no one signed up to do the church flowers yesterday,…