Description Callisia congesta is a tropical trailer with thick, crisp, tightly whorled leaves. Leaves are dark green and covered in purple spots. It is fast and easy to grow. Good for a hanging basket or trailing over the side of a mixed planter. Care of Callisia congesta: Shade to partial sun, temp. 45 to 100 degrees, 6 to 8 in. tall trailing to 2 ft. or more, allow getting slightly dry between watering. Family: Commelinaceae This plant is shipped in a 3.5 - 4 inch pot.