Fussy little beggars, these - need acidic compost, feeding weekly during growing season, keep in conservatory or cool room, indirect light in summer, keep compost slightly moist, water with soft water or water containing coffee grounds. In winter, ensure plant receives some direct sunglight and let the compost dry out slightly before watering. Maintain a night time temperature of at least 61 deg. F and 70 deg. F during the day, or it will never flower. Stand pots on trays of wet gravel to increase humidity. Repot in spring but only when the roots are crammed - they flower better when slightly potbound.