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Thread: Temp Toelration

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    Formerly known as Pineapple Nepenthesis's Avatar
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    Temp Toelration

    I just set up my new greenhouse. It's right in the middle of winter right now. I'm in zome 9-10.
    The greenhouse gets up to about 65F-70F during the day, with around 60-70 percent humidity. At night, it drops to about 48F-50F, with much higher humidity. I think my three neps would benefit more from natural sunlight rather than 40w fluorescent bulbs, and they will get more air circulation. I would like to move them outside as soon as possible. Will they be stressed if I moved them outside during the day and back into their humid terrarium at night? What is the coldest temperature a highland nep can tolerate, and for how long can they stay in that temperature?

    The neps in question are all highlanders -- Ventricosa x Talangensis; Truncata; Ventrata -- and they're all beginner species.

    Thanks in advance!

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    I would definitely start moving those plants to the greenhouse, as I'm not a fan of terrarium conditions. Try acclimating them a bit first, assuming the humidity in the terrarium is very high, but those species are all pretty hardy, so I doubt shock will be much of an issue for you.

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    Formerly known as Pineapple Nepenthesis's Avatar
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    I have a 4" Home Depot test bromeliad that I can use to make sure the temperature won't kill the neps. I'll leave it in there for a few days and see what happens. We're about to go into some 35F nights, so I may wait until the nights get up into the forties before I add the neps. I just sealed off every crack in the greenhouse using bubble wrap and I'm going to caulk the panels in place which should help keep in the heat. In the meanwhile, I'll take the hood off of the terrarium to acclimate them to cooler temperatures and lower humidity.

    Thanks for the reply!

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    I keep my Ventrata outside unless the nighttime temperatures drop near freezing. It's handled nights in the mid-30s with no sulking, though it has stopped growing. However, my plant also spent some of the summer and all of fall outside, so it's had a long time to adapt to the lower humidity and whatnot - if yours is coming from a terrarium you'll want to spend some time acclimating it.

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    Formerly known as Pineapple Nepenthesis's Avatar
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    Quote Originally Posted by Natalie View Post
    I keep my Ventrata outside unless the nighttime temperatures drop near freezing. It's handled nights in the mid-30s with no sulking, though it has stopped growing. However, my plant also spent some of the summer and all of fall outside, so it's had a long time to adapt to the lower humidity and whatnot - if yours is coming from a terrarium you'll want to spend some time acclimating it.
    Thanks for the reply! That's good news. It rarely gets below 30 around here in the winter, but usually stays around 35 or so at the coldest. It only drops to there for a few hours during the night anyways.

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    Is ready to take this hobby to a whole new level DavyJones's Avatar
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    35 degrees might be a bit chilly for some of those guys. They might be highland plants, that doesn't make them temperate...
    "We are in a sense the Universe trying to understand itself. By Observing it we are observing what we are." - Phillip Plait

    Growlist: Updated 1/11/12 http://www.terraforums.com/forums/sh...d.php?t=110846

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    Quote Originally Posted by DavyJones View Post
    35 degrees might be a bit chilly for some of those guys. They might be highland plants, that doesn't make them temperate...
    I believe it would be a bit warmer in the greenhouse now that I sealed it off from the outside air using bubble wrap. I'll be caulking the windows in as well, so that should help too. I'm going to get up early tomorrow while it's still dark and check the nighttime temperature.

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    Tony Paroubek's Avatar
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    The N. truncata will not appreciate getting overly cold. I find they are really more lowland/intermediate.. even the Pasian 'highland' form.

    The other two are quite durable and hardy growers regarding colder temperatures.

    One thing you will need to be careful about is burning the plants. Despite it being Winter, the sun is still quite strong in comparison to 40w fluorescent tubes.
    Is that a Nepenthes in your pocket or you just happy to see me?

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