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Thread: Do Darlingtonia need cool roots?

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    fredg's Avatar
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    Do Darlingtonia need cool roots?

    I have been monitoring the root temperatures on my Darlingtoia colonies this summer. As part of this I seperated the stolon of a young plant from the Mother colony ( it was in the wrong place) and planted it up in a half tray.

    Here is the plant on June 16th.



    As it is a half tray it has wider fluctuations in temperature than the larger trays. The maximum root temperature I recorded was 32.4C - 90F.

    The same plant on September 8th



    As can be seen, the tray is black and the plant sits in water, the trays are flooded.
    Fred

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    A leuco by any other name would still be as gluttonous. CorneliusSchrute's Avatar
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    Always impressive, Fred. Again, spitting in the face of conventional wisdom: I love it! Makes you wonder if anything "conventional" really exists regarding cobras.

    Have you ever grown cobras in anything but live sphagnum? I ask because all that "wisdom" mentioned above always states cool roots, oxygenated water, and/or pure sphag. Just wondering if you ever bucked all three of those points.

    I do have Darlingtonia seedlings growing in a tray of water with no refrigeration or water movement, but they don't sit in full sun: they are fully shaded. You are inspiring me to try them outside. As of now, my full sun cobras all have a recirculating water system which we have discussed before.
    Corey Bennett

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    Gigantea's Avatar
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    That's pretty cool. I'm still not ready to try them here. I still get soil/root temps over 100F here and its September.

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    Is this the Siskiyou or coastal variety?

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    thats great growth Fred,unlike some growers you make things simple,think some people like to over complicate things

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    fredg's Avatar
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    Quote Originally Posted by mato View Post
    Is this the Siskiyou or coastal variety?
    That half tray is an unknown, it's the clone I've had for 30 years. However, Siuslaw and Othello are in the monitoring set.
    Fred

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    kulamauiman's Avatar
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    I am growing in tray. Kept flooded. Both terra cotta pots and plastic. Mix is not pure sphagnum but a mix of lava rock and stuff. Top dresses with live sphagnum. But I am in a mild climate.


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    fredg's Avatar
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    Quote Originally Posted by kulamauiman View Post
    I am growing in tray. Kept flooded. Both terra cotta pots and plastic. Mix is not pure sphagnum but a mix of lava rock and stuff. Top dresses with live sphagnum. But I am in a mild climate.
    By the looks of it you need bigger pots, why not try planting them direct into trays?
    Fred

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