Graceful plants with lavish blooms, cymbidiums are happy wherever nighttime temps fall to 60 or lower during the warmest parts of the year. From long, narrow, arching foliage arises arching spikes of flowers, usually from February to early May. One spike may carry as many as 30 flowers, each 4 to 5 inches across, which can remain fresh for 8 or more weeks. From March to October—the months in which new growth develops and matures—water plants copiously. At other times, keep the potting mix barely moist but never dry.