purple back evergreen also called purple brocade blue, as Commelinaceae evergreen perennial herb , leaves broadly lanceolate , a ring with students in the short stems glossy dark green , dorsal dark purple ; Flowers axillary white flowers are two clamshell -like purple bracts , filaments with white hair, is commonly cultivated indoor foliage plants . This plant is native to Mexico and the West Indies, warm and humid climate,Pingdingshan florist, suitable for growing in a temperature of 15-25 ℃ environment, hi light also shade , fear the sun, requires fertile soil water retention capacity . purple back evergreen Pentu suitably pond scum 2 parts , 1 part peat mix . Because of its adaptability, management is extensive , except from May to October to be placed in the shade or ...