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The effect of "dark days"

This is a discussion on The effect of "dark days" within the General Orchid Culture forums, part of the Orchid Culture category; Here in Barbados we have been experiencing several "dark Days" in succession. By this I ...

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  1. #1
    angela's Avatar
    angela is offline Senior Member
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    Default The effect of "dark days"

    Here in Barbados we have been experiencing several "dark Days" in succession. By this I mean heavy dark clouds, with no rain associated, and no bright sunshine. Though these days are not particularly hot, they are quite dry and still. The dilema is whether to water or not.
    Since I am gearing up for our Big Show in March I am wondering what effect these "dark days" will have on my plants.
    This condition is not totally unusual, but I am concerned because it has gone on for more days than I am accoustomed.
    Please let me have your thoughts or experiences.

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    Ryan Young is offline Junior Member
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    Posted via Mobile Device

    ---------- Post added at 09:39 PM ---------- Previous post was at 09:35 PM ----------

    Look for signs of needing water, and go on a per basis for each plant, shrivelling bulbs, dry roots, or wilting stiff dry appearance. If not they probably will be okay for a bit.
    Posted via Mobile Device

  3. #3
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    I was wondering the same thing Angela, winter has finally come to Houston and for a few nights I brought my babies inside. They are back outside (for now), but since I normally grow outside and this is my first winter with them I don't know what to expect. I hope they don't decline before spring. Several are in bloom or spiking now.

  4. #4
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    I have a had few weeks of "dark days" coupled with cold and I don't water. I would rather some stress from being dry than risk rot. I've gone from watering several times a day to watering a couple of times a week.

  5. #5
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    I have a had few weeks of "dark days" coupled with cold and I don't water. I would rather some stress from being dry than risk rot. I've gone from watering several times a day to watering a couple of times a week.

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    I've had a few days like that, but I usually have a little breeze, if it's high 60's or low 70's in the morning I do water my vandas, one time ,thinking they have all day to dry out, also anything mounted. Potted orchids I usually leave alone or go by as is needed basis. After reading Dr. Motes I have no qualms about giving my orchids a dry spell. I've usually follow the mantra "when in doubt to water, don't".

  7. #7
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    We do have dark days but it always rains during this period. It is actually happening now and so between the showers I apply fungicide.

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    If too long is not good for the orchids it will affect the flower size and maybe possibility of buds blasted as a result reduce plant photosynthesis.

  9. #9
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    When the weather is cool and overcast I worry about Botrytis fungus. It seems to prefer the winter months. One book I read says it's most prevalent in January and February. Often I don't even know I have it in my collection until some light colored orchids bloom and I find brown spots on the petals. For that reason I continue to use a fungicide during the winter and I try not to water when conditions will allow the plants to stay wet too long. I also try not to get the flowers wet when I water in the winter. Botrytis spores can be in the water dripping from one orchid onto another. Luckily Botrytis doesn't kill orchids but it does leave unsightly little brown spots.

  10. #10
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    I hope the sun comes out for you soon, Angela! Lots of good thoughts in this thread.

    cheers,
    BD

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