For Phals, the urge to keiki (in an otherwise healthy plant) seems to be more genetic than culture related, though culture can have an effect. Often a cool down in the fall will help initiate blooming. Some plants seem to send out keikis more than bloom for no obvious reason. You can have plants growing side by side and one blooms and another will just produce keikis. Often a cool down in the fall will help You may just have to be patient-orchids like to teach us patience .