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Thread: highland, lowland, let\'s call the whole thing off

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    swords's Avatar
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    I'm curious as to the need for the highland Nepenthes to be subjected to the much cooler night temperatures. Will it damage a Nepenthes who is a highland species to be grown as an intermediate (apx 70* at night and 80-85* during the) day so long as the humiditity is near saturation? WIll these type of conditions work for all nepenthes species?

    I don't have a specific plant in mind, my mind is just wandering... 8-)

    (Edited by swords at 12:25 pm on May 12, 2002)

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    Tony Paroubek's Avatar
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    Some highland plants may slowly decline in health if subjected to long periods of warm night temperatures. Basically what happens is the plant is using up its food reserves and resources while respiring at night. The warmer the temperature the faster these plant functions proceed. Highland plants adapted to cool temperatures may use up their food reserves before the sun shines again if temperatures are too warm. The result is they slowly starve themselves.
    Tony

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    From my experience this drop in temperature isn't enough for ultra-highland plants like N. villosa or N. rajah which do stand light frosts in their natural habit. They'll decline with time. Other species from lower elevations may be able to grow under these conditions but this strongly depends on species and clone you are growing and of course they won't grow as nice as under highland conditions.

    Joachim

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    Nepenthes Specialist nepenthes gracilis's Avatar
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    The only highland plant I have known to withstand your conditons would be N.Burbidgea. It will only pitcher when the nights are mild. It is a hihgland palnt but like it somewaht warmer, like about 60F at night. But yes the other hihgland palnts will be exhausted with intermedaite conditons unless the intermediate conditons are more toward hihgland. But yeah, if you put a Rajah or Villosa or other palnt like that in with let's say an N.Gracilis it wouldn't be very nice looking after a few days. [img]http://www.**********.com/iBhtml/non-cgi/emoticons/smile.gif[/img]

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    swords's Avatar
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    Thanks folks,
    I was just curious as to how warm nights could possibly hurt a plant, now I see!

    Let me ask you (I have no immediate plants to buy a rajah...) but how do you simulate 75* days and then near frosty nights? What kind of setup would you need to do to grow one of those "ultra highlanders"?

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    interesting website:

    http://www.plantswithattitude.com/growDoc.html

    (Edited by whispersiren at 6:40 pm on May 12, 2002)

  7. #7
    Nepenthes Specialist nepenthes gracilis's Avatar
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    Stimulating 75F in the day would require a sun heated terrarium and near frost level nights would be not needed unless you grow N.Villosa! [img]http://www.**********.com/iBhtml/non-cgi/emoticons/smile.gif[/img] Now my specialty Ultrahighland Nepenthes. My setup consists of 3 frozen solid bottles: 1 placed in a small cup of water and the other two are suspended in the air. Next my Ultrasonic humidifier is on and that makes 100% condensation on the plants which Ultrahighlands need. A picture of my setup I will post later tonight.

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    Nepenthes Specialist nepenthes gracilis's Avatar
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    Swords, as I promised you my setup for N.Rajah/Ultrahihgland Nepenthes described above.




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