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Thread: Bionic Nepenthes grow without roots - HELP!!

  1. #1
    Hans Breuer's Avatar
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    Hi everyone,

    over the past months, I've taken four cuttings of aristo x thorelii and three of raff x thorelli. All of them are doing fine, growing like gangbusters (up to double size), even vining and producing pitchers - but none of them have grown roots so far.

    I'm perplexed. Is this normal/dangerous/worth a call to Kew Gardens?

    They're all growing in pure LFS, and my Taiwanese friends tell me to change to a coarser, drier medium - in their eyes this is a matter of overly wet medium and too much humidity.

    Anyone ever experienced this? Any tips? Comments? Open ridicule? ANYTHING!? Smile

    Thanks in advance for any pointers!

    Hans

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    I've had a handfull of neps grow a leaf or two without roots before going on to form roots, so its nothing to worry about. Heres what I would do in this situation:

    make a sharply angled cut in the end of the stem
    dip in rooting hormone
    stick in a 1:1:1 mix of peaterlite:vermiculite


    There was an experiment that was done that I was reading about a while ago, and it said that if light can reach the part of the stem that has been cut, neps are likely not to make roots
    Z polski y dumny
    Prayer - how to do nothing and still think you're helping.
    http://www.youtube.com/watch?v=5F5aCUNE4Z8
    ^^^Newest vid

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    Hans Breuer's Avatar
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    Thanks for the tips, man. Alas! I've done all that Okay, I use pure LFS, but that's because I grow them outside, otherwise they'd dry out too fast.

    Nothing left to do but wait and see, I guess

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    quogue's Avatar
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    Some Nepenthes in the wild abandon their roots... I wouldn't worry about it as long as they're growing

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    herenorthere's Avatar
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    I've seen the same with the fruiting plant cuttings I root more frequently, such as figs and grapes. But try to be patient because Neps can be unbelievably slow to root. I agree about 50% with what your Taiwanese friends said. A coarse, airy rooting medium works best and moist is better than wet. But I think LFS is a great rooting medium because it provides a great combination of moisture and aeration. I use it too, usually (not always) mixed with sponge rock. I pack it more loosely than normal too, to help with aeration.
    Bruce in CT

    Madness is something rare in individuals but in groups, parties, peoples, ages it is the rule. Friedrich Nietzsche

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    i always root my cuttings as per my post above...never waited longer than a month and a half for roots...
    Z polski y dumny
    Prayer - how to do nothing and still think you're helping.
    http://www.youtube.com/watch?v=5F5aCUNE4Z8
    ^^^Newest vid

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    Hans Breuer's Avatar
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    Thanks again for the input, everyone!

    quogue: "Some Nepenthes in the wild abandon their roots..." can you tell us more about that?

    Phissionkorps: do you grow your neps in tanks or outside?

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    I grow them in a large plastic terrarium-ish thing. When I am trying to root a nep, i put it very close to the lights (like 3 inches away) and keep the soil constantly wet
    Z polski y dumny
    Prayer - how to do nothing and still think you're helping.
    http://www.youtube.com/watch?v=5F5aCUNE4Z8
    ^^^Newest vid

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