Few plants give the sense of contentment inspired by well-tended vines.
Our clematis, trumpet creeper, climbing hydrangea, honeysuckle and English and Boston ivies delight us year after year. This year, my son had the thought of planting a vine to adorn the wooden post that holds up our mailbox at the roadside. So he chose morning glory, a wise choice because the vine is an annual that dies with the fall frost. If it doesn't work out, he can try something else next year. With perennials, you might invest two or more years of work and time before discovering your selection was unsuitable.