One of my favorites - 'Caramel"Heuchera is our Favorite 15 plant featured this week. Heuchera are perennials that are native to North America. They grow in well drained areas from Connecticut to western Canada to Mexico. Fifteen years ago when we first started, there were few varieties to choose from. There were green leaf ones and a new one with purple leaves called Palace Purple. New varieties with silvery and purple leaves began to trickle into the market. The floodgates were then opened and new colors from chartreuse to pink to orange to black, and everything in between flooded the scene.