I have a Lycaste (posted under 'Other Flowering Orchids) and from what I've read and personal experience with my plant, they can retain their leaves unless they are of the deciduous type. Mine hold their leaves for 2 yrs, then they turn yellow and drop. Also all must be protected from sun light....leaves burn in a heartbet! Helps to know if your plant is from higher elevations or lowland....high/cool, low/warm. Water just to keep the PB's plump...I allow mine to dry somewhat during winter and water big time during the summer. Also the AOS has cultural sheets on many orchids.... Lycaste . This link may be helpful.