Mt. Washington Tavern Owner Rob Frisch likes the pretty touch his new mandevilla flowers added to his existing pergola on his Sky Bar. Living Canopies is trying out its newest product the Living Pergola, which comes with an automated solar powered watering system, at the Tavern this summer. The red mandevilla is a tropical vine native to Brazil. In Maryland it won't survive the winter so it can't invade the natural ecosystems. It comes in pink, white, red and now apricot. Best of all its use of water is like nature's own little micromisters that releases water vapor to cool the air surrounding you.