The variegated leaves of white, medium green, and light yellow on the Calthea louisae are colored maroon on the back. White flowers rise above the foliage in late Summer. Grows 2ft in height and prefers some shade. The tropical leaves of the Calthea louisae perform best with some shade. The Calthea louisae are very susceptible to cold weather. The Calthea louisae is one of the most dramatic stripped leaves in the tropical landscape.