|'Yellow King Humbert' bears green foliage and lemon-yellow flowers flushed with crimson. Bold leaved perennial with flowers summer to frost. Casually shaped five petal flowers to 5 inches wide held above the foliage on tall stems. Flowers may be red, yellow, orange, pink or salmon. Adds a tropical look to the landscape. Large (to 2 foot) leaves are green, sometimes marked with bronze stripes. Effective in mass plantings or containers. Very easy to grow.