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Coelogyne cristata - winter care yo promote blooming?

This is a discussion on Coelogyne cristata - winter care yo promote blooming? within the General Orchid Culture forums, part of the Orchid Culture category; I have a Coelogyne cristata that I've been growing for 2+ years, it now covers ...

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  1. #1
    Catt Mandu's Avatar
    Catt Mandu is offline Senior Member
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    Default Coelogyne cristata - winter care yo promote blooming?

    I have a Coelogyne cristata that I've been growing for 2+ years, it now covers most of the top of a 12 inch (30 cm) diameter basket of moisture retaining mix. Probably 25 + pseudobulbs, the largest bulb maybe 4 inches long. Vegetatively, I think the plant is big enough to bloom(?)

    My understanding is that the plant needs to be grown cooler, brighter, and drier in order to bloom. My questions are:

    1. Are the above winter conditions needed?
    2. Temperature: how cold, day & night? Similar to how I'm treating my Cymbidiums (days 50 - 60 F, night not lower than 32 F)? How cold is too cold?
    3. Light: in autumn-winter temperatures, is outdoor full sun OK? Plant was grown outdoors all summer.
    4. Water: I've heard that water should be reduced until the pseudobulbs have changed from plump/smooth to noticeably wrinkled/ridged. At the above temperatures, would watering only when the medium is nearly dry be appropriate? No fertilizer during the rest?
    5. How long should the winter treatment continue, or is there a growth indicator that says to resume water, fertilizer and warmer temperature temperatures?

    Thanks for any suggestions.
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  2. #2
    Espada is offline Junior Member
    Join Date
    Aug 2016
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    18

    Default

    Hiya!

    So this year is the first full year I have had my Cristata. So what I have done was water it when the media was dry I would spritz it and it seemed fine I tried not to let the bulbs shrivel as much but I did accidently let it get into the 30's all night. since the new growth I have fed it Nelson fertilizer and I have switch to seaweed and now its producing bulbs. light I Gave it about 8-10 hours sunlight indirect and 2 of those hours got direct morning light every morning I spritz it with water regardless if I just water it that same morning. No fertilizfer during the resting period. I use my other plants as indicators for watering out of rest period. hope this helps almost a year late!

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