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 half shade , the other should be given plenty of light ; watering should be rather wet not dry , but not too wet or water otherwise, over time it will rot ; weather is dry, water should always maintain the growth environment with high air humidity , fertilization not too much water can be applied 1-2 times a cake . Winter should be placed in the room to the wet and keep at 6-10 ℃ or so , the soil slightly moist on the line , not too moist . purple back evergreen multi ramets reproduction, may also have cuttings , planting method . Repotting ramets usually in the spring when combined , intensive practice is to use the mother plant from the gap at the Lee knife ramets . Cuttings can be carried out during the growing season , practice is the interception top of the stem 7-10 cm long , remove the lower leaves , stick into the sand , moisture, about two weeks to take root . Often in the April planting pots used between the sowing ,Mudanjiang florist, growing rapidly after emergence . Seedlings grow to Cunxu , make timely transplant, then you can grow into the fullness of autumn plants .