In Experiment 1, the numbers of visible buds and flowers increased, and time to flowering decreased in both the LNI and HNI treatments, as compared to the control in both cultivars. Red color inCymbidium 'Red Fire' increased by both LNI and HNI, as evidenced by an increaseda* in plants grown under these conditions, relative to those grown under the control condition. Number of days to visible buds at 9-15°C ranged from 31-34 days, as compared to 39 days at 6°C in Experiment 2. Although as the temperature increased days to flowering decreased when the plant was grown at 15°C as compared to 6, 9, or 12°C, the red color (a*) also decreased. The number of flowers and percent flowering increased when the night temperature was maintained higher than 9°C.