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Thread: Massive plant dieoff

  1. #9
    RL7836's Avatar
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    Quote Originally Posted by scottychaos View Post
    pots too wet all winter..you really need to remove the trays completely, no standing water at all. plus let them drain and dry out for a week or so before putting them away for the winter..
    I've managed to kill some in years past that were either too wet or too dry. Something wetter than bone-dry and drier than soaking wet (leaning closer to the dry side) tends to work for me. In addition, I dose with Tricho before they go to bed in the back of the garage (I also cross my fingers & hope each winter) - as well as monitor them all winter....
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    Quote Originally Posted by D_muscipula View Post
    I don't know if it's RO but I know it's UV
    My mother works in wastewater management and she says it removes the minerals and salts so they are below 50 Parts Per Million.
    Do you have a TDS tester (cheapest version is enough) so you can prove the TDS/ppm of the filtered water?

    The filter capacity of RO filters is limited, the RO membrane is a wear and tear part. Normally you use a cheap TDS tester to test the raw water and filterered water, and if the filtered water has max. 5% of the TDS ppm reading as the raw water, the filter is OK. Otherwise, if not 95% of the minerals is filtered out, the RO membrane needs replacement.

    Whether the filter has an additional UV unit and whether this UV unit is working or not, is of no importance for your plants. It's only important if the water is used for drinking or washing fruit and vegetables for consumption whithout previous cooking while germs proliferate in the filter unit.

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    D_muscipula's Avatar
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    My mother probably has a mineral test kit at work, I could send her with two samples of water in separate bottles and have her test them for me.

    If it is the case that my filter is not a UV/RO combo, do you have any suggestions on how to flush the minerals out of pots with particular delicate plants such as small sundews or seedlings?
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    Quote Originally Posted by D_muscipula View Post
    My mother probably has a mineral test kit at work, I could send her with two samples of water in separate bottles and have her test them for me.
    That's an idea.
    The only test needed is a TDS / conductivity test, result in ppm or micro-Siemens. Cheap TDS meters at eBay are for less than 20 USD, shipping from Hong Kong included (Seach for "TDS meter"). But anybody can do the test who has a TDS meter (i.e. aquaristic pet shops, most likely).

    TDS (conductivity) tap water = ?
    TDS (conductivity) filtered water = ?
    If your filter is an RO filter and the membrane is OK, the TDS (or conductivity) of the filtered water should be 5% (or less) of the TDS (or conductivity) of the tap water.

    Quote Originally Posted by D_muscipula View Post
    If it is the case that my filter is not a UV/RO combo, do you have any suggestions on how to flush the minerals out of pots with particular delicate plants such as small sundews or seedlings?
    Sundews is a problem. Sarracenia can withstand somewhat higher concentration of minerals than sundews can. If your filter is not a RO unit (or a RO unit with defective RO membrane) and only Sarracenia are affected, I'd try some kind of "rinsing method":
    - Do one month (or ten times) of watering of your Sarracenia as you like
    - and once per month (or every tenth watering): Rinse additional water from top to bottom through the pot and pour away that rinsed through water

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    SDCPs's Avatar
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    If your plants were all lost during winter where they are being rained on and the pots are flushed naturally, it's hard for me to believe the deaths are due to mineral buildup. I suspect rot is a more likely possibility.

    They would most likely perish durning the summer if this was the case, no? Also, I doubt you'd lose sarracenia before sundews when using water with too many minerals.


    Let's not beat around the bush.

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    scottychaos's Avatar
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    Quote Originally Posted by RL7836 View Post
    I've managed to kill some in years past that were either too wet or too dry. Something wetter than bone-dry and drier than soaking wet (leaning closer to the dry side) tends to work for me. In addition, I dose with Tricho before they go to bed in the back of the garage (I also cross my fingers & hope each winter) - as well as monitor them all winter....
    I agree..drier is better!
    my pots are quite dry all winter..moist, but dry.
    its hard to get more specific than that, but if you squeeze the media, and some actual water drops drip out, then its probably too wet..

    I just took my plants out of dormancy today!
    4 and a half months in the stairwell this year..they all look good!
    I dont check my plants at all in the winter anymore..but I keep them wrapped tight in plastic, so there is no danger of them drying out..

    Scot

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    "Oh, now he's a philosophizer" Baylorguy's Avatar
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    Just to clarify... in my experience rot is more of an issue if the plants are in a basement or garage. If your plants are outside all winter and exposed to open air, it is less of a concern.

    Phil

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    Lover of Mountains nightsky's Avatar
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    That sucks, sorry to hear you lost so much. It seems every year I lose several temperate cps also. I just can't perfect their dormancy. I just pulled mine out this week, but I'm not repotting this year, so I've yet to see what will be lost. Fingers crossed.

    But hey, it gives you an excuse to pick up some new plants!

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