Heliamphora require strong light for maximum growth and will tolerate full sunlight, producing vigorous healthy plants. In their native habitat, the soil and air remains relatively cool under full sunlight because of the high elevation, whereas in a greenhouse, exposed to full sunlight, soil and air temperatures rise considerably above the level to which the plants are adapted. Make provisions for maximum light with soil and air temperatures not exceeding 78°F (26°C). Under artificial light provide an intensity of at least 1500 foot candles with a summer photoperiod of 13-14 hours and a winter photoperiod of 12-13 hours.
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