| Air
& Humidity
Being wholly tropical plants, sufficient humidity is a key
factor in the health of Nepenthes foliage. Generally
it is recommended to maintain the humidity at a minimum of
70%, which can be accomplished in non-tropical climates by
frequent misting or growing the plants in a greenhouse or
terrarium. Species with thick waxy leaves are able to tolerate
somewhat drier air and make good candidates for windowsill
growing (see below). Those with thin, delicate leaves (e.g.,
N. hamata, N. tentaculata, N. muluensis, etc.) are
very susceptible to humidity fluctuations.
Temperature
The genus is generally divided into two sections, lowland
and highland species, according to their altitude of origin
and different climatic preferences.
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Lowland Species
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Highland Species |
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Natural
Habitat |
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Sea Level to hill forest.
(0-1000 meters elev.)
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Montane forest to alpine scrub.
(1000-3500 meters elev.)
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Temperature
in Cultivation |
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Hot days, warm nights.
(80-95 F or 27-35 C day)
(70-80 F or 21-27 C night)
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Warm days, cool nights
(70-85 F or 21-29 C day)
(50-65 F or 12 - 18 C night)
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Suggested
Growing Situation |
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Hothouse, Heated Terrarium,
Outdoors (Tropical Climates) |
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Greenhouse, Cold Terrarium, Windowsill
(see above) |
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Due to their different temperature requirements, it is usually
necessary to cultivate lowland and highland species separately.
A few highland species (N.fusca, N. maxima, N. veitchii,
etc.) can be considered "intermediate" plants, and
at least some varieties of these can be successfully grown
along with lowland species.
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