To bloom, first, they need lots of bright light all year round, although they also need protection from direct sun in the midday hours. Second, they should be kept in small pots; repotting discourages flowering. Third, they require warm temps, never below the mid 60's, even in winter. Fourth, keep the soil evenly moist - too much or too little water will discourage blooms. Finally, younger plants are better bloomers than older plants. Regular pruning will help keep them young.