Since 1960, The Epiphyllum Society of America (ESA) will host the Annual Flower Show and Sale. Treat yourself by viewing these unusual and gorgeous flowers. The show also includes epiphyllum pictures, flower arrangements, plants and related epiphytic plants. The Epiphyllum Society of America (ESA) will be selling these unusual and gorgeous flowers on Saturday and Sunday. There is no show Saturday. The show will be held one-day only on Sunday.