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Phal orchids growing, but not flowering

This is a discussion on Phal orchids growing, but not flowering within the New Growers: Ask the Senior Members forums, part of the New Growers category; I guess I am perplexed by shorter lighting hours during the summer as opposed to ...

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  1. #11
    78Terp's Avatar
    78Terp is offline An Avant Gardner
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    I guess I am perplexed by shorter lighting hours during the summer as opposed to winter according to the chart.

    Shows 13 hours a day for July and Augusta and 16 hours a day for November and December.

    Seems backwards to me. But what do I know!

  2. #12
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    As to temperatures, we're nowhere near 13 degrees nighttime now. I'm worried about leaving them outside at night which would probably get then to a lower temp than inside, bearing in mind I don't stay up monitoring nighttime temps in my house, but what about using air conditioner? Is that a no no? And what if you've just watered that morning and their still quite wet?
    Posted via Mobile Device

  3. #13
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    is that chart meant for canada only? cause here we don't have winter. only raining season and non raining season in which both seasons has rains.

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    This is anew leaf which has just opened on one of my Phals. The color seems a lot lighter. I've been experimenting with putting them under my study light at night and on the mornings, and I've put them on my desk which I know gets a lot of light late afternoon. Is this the color I'm aiming for to induce flowering?

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  6. #16
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    hi again,... i think you need to watch this video,.. it explains everything,..
    it says it's the problem of growing phals inside home, because no temp difference between night and day,..


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    Lanny Morry is offline Junior Member
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    Obviously the information I provided charts how to get phals into bloom in Canada, and will work here. The desire of many of us is that we bring phals to flower so they will be at their peak during the orchid show season here for a series of shows in Ontario and Quebec which are held in the months of March and April each year. The charts cover indoor growth, be it in the house or in a greenhouse, and in an area where you can have control over temperature and light. Growing orchids here is an indoor business because of our climate and four dramatically different seasons including a lengthy very cold fall and winter period when nothing is growing outdoors because it has either gone dormant or is under feet of snow. But I think theoretically this should work to institute the setting of a scape on phals for anyone growing indoors who is able to control lighting and able to control temperature because this is a plant that requires that mix of light and temperature once a year to initiate the production of a scape which will ultimately lead to bloom.

    This is an interesting and excellent video and would likely be very applicable to places where one does not have control over house temperatures. But where we live, in Canada, we have to heat our homes and traditionally we drop the night time temperature to around 18 C at night while people rest and raise it during the day so we can achieve lower temperatures, and if the orchids are grown in a special room, often in a basement, it can be kept cooler, or made warmer by either blocking or opening heating vents. In my house I can can control the temperatures in my orchid room by covering over the heating vent into the room, or removing the covering, or by running fans etc. to provide cooling for the period required as well.

    Lanny

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    I personally think, if temperature has to be manipulated with minimum equipment, its easier to make heat. So instead of giving ice at night, maybe easier to put something hot near the orchids during the day,.. and leave it at normal home temp at night.

  9. #19
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    In addition to light and temperature you may also want to consider what, if any, fertilizer you're using. A high N will promote root and leaf growth over blooms. So maybe try dropping your home temp 15f degrees (from what it has been for the last couple months) for a couple weeks and use a "bloom" fertilizer with a low N and a higher P & K once or twice and see what happens. I'm not sure what season it is where you are or if 15f degrees will freeze you out but just my thoughts as to what I would try. Hopefully it's a toasty 85f where you are.

  10. #20
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    Quote Originally Posted by LiveLaughGrowOrchids View Post
    And what if you've just watered that morning and their still quite wet?
    Posted via Mobile Device
    If in a humid environment you should check to see if the crown of the phal has pooled water in it. And the next couple of leaves down from the top too. But use paper towel, toilet paper, cotton rag, anything absorbent, and suck that standing water out of those phals. Phals are prone to crown rot. If you ever think of mounting a phal, mount it with the crown pointing down. That keeps water out naturally. Gravity has it benefits!

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