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Thread: N. northiana

  1. #9

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    Thanks to all of you for your remarks regarding this plant!

    Actually, this specimen is not growing in my basement.
    However, it is cultivated using artificial light. Specifically,
    I use four 40 W cool white flourescent lamps, on a timer.

    It is about 5 years old. Took it a while to get going, but
    once it did, it took off. The whole plant is quite large,
    being over 1.3 m in diameter, with a stem that is about
    80 cm long. If any of you have other questions, please ask
    and I'll try to provide some information.

    BTW, I feed it crickets -- about 30 at a time.

  2. #10
    Nepenthes Specialist nepenthes gracilis's Avatar
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    Ok, I do have a question that aroused just now.

    I have a small northiana (13 cm in diameter) and it has pitchered, but when it does the lid doesn't form, it shrinks almost immaturely. It grows fine and pitchers ok, but the shrinking lid has me puzzled it's about 80 or so all the time and it loves it. Thank you Jeff! Dustin. (sorry for the bad image quality too, I just snapped them quick.)

    [img]http://home.**********.com/nepenthesgracilis/northiana%20pitcher.JPG[/img]
    Pitcher (note tiny operculum)
    [img]http://home.**********.com/nepenthesgracilis/northiana%20plant.JPG[/img]
    Plant (13cm in diameter)

  3. #11

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    I have seen the problem of which you speak, Dustin, as have
    others I know. Moreover, this problem is not unique to
    N. northiana; it can occur with almost any species of Nepenthes.
    My opinion is that it is caused by rapid shifts in humidity, and
    can also occur as a result of inadequate soil moisture. Some
    species, e.g., NN. tentaculata, macfarlanei, lowii, and rajah,
    exhibit this tendency much more readily than other species.

    If anyone has other thoughts on this phenomenon, I would
    be most happy to see them posted.

  4. #12
    Nepenthes Specialist nepenthes gracilis's Avatar
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    Hi Jeff,

    Thanks for the info! I would be greatly appreciative also if anyone else can help me rid my plant of this problem. [img]http://www.**********.com/iB_html/non-cgi/emoticons/smile.gif[/img]

    Also my N. lowii did this also (but the pitcher WAS damaged before hand) It made almost no lid yet a fully formed pitcher.

  5. #13

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    Wow! It IS gorgeous!!!

    It would be neat to see a series of pictures marking its pitcher development over five years... especially since few of us will probably have such amazing results.

  6. #14
    Tony Paroubek's Avatar
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    Great pics! Your plant looks nice and healthy Dustin.
    I have seen plenty of weird things with pitcher development. Usually it occurs after a repotting or some other environmental 'disaster' IE a rapid change in temperature and or moisture. I suspect that some Nepenthes are more susceptible to these things than others and the pitcher has to be at the right phase of development to show such effects.

    In my experience N. northiana is very tempermental about fluctuating conditions. Perhaps simply opening up an enclosed growing area/terrarium for a minute or two causes a significant environmental change in humidity and temperature. Enough so that pitcher development is disturbed.

    Tony
    Is that a Nepenthes in your pocket or you just happy to see me?

  7. #15
    Nepenthes Specialist nepenthes gracilis's Avatar
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    Hmm....maybe leave me terrarium alone for a while? I do open it for only a minute or so...at the most 5 minutes (when I add water). Wierd that just that short amount of time effects the pitcher developement! I'll leave the top sealed till a new pitcher opens.

    Jeff, is your growroom a walk in deal? If so does your N. northiana ever respond negatively from you checking in on it occasionally? Thanks!

  8. #16

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    I grow N. northiana in a special environmental chamber I built
    for it. Had to do this because the environment in my greenhouse
    proper was too variable. However, I've found no adverse effects
    from the occasional inspection of my plant. Actually, my experience
    suggests that it may take more than a momentary fluctuation
    to induce adverse changes. Since I live in a fairly dry area of
    the country, though, my greenhouse humidity can fluctuate
    markedly during the day. Most Nepenthes will tolerate this, but
    N. northiana seems to be the exception.

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