This plant grows in a very unusual way. The first year it just spreads out rapidly, no more than 6 inches tall. It can make a carpet 12 feet plus across in one season. Then, in the second year and beyond it sends up absolutely vertical stems that flower at their tops. I've seen these 12 feet tall in shady, well supported clumps. Generally six feet is max. Two entirely different growth forms. Ours is blooming like crazy now.
