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  #301  
Old 06-28-2020, 05:03 PM
Rhonda Svoboda Rhonda Svoboda is offline
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Which orchids in YOUR collection get a winter rest? Female
Default Winter rest

Hi: here are the orchids in my collection that receive a winter rest:
Laelia tenebrosa
Cycnodes Wine Delight
Oncidium Tsiku Marguerite
I supplement my orchids with grow lights once they come inside for the winter. I live in Michigan so our winters are long.
I generally cut down on fertilizer and water in October-February. I try to time my grow lights according to the natural day length. This is especially true for my spring blooming plants. Cattleya's, etc. I have discovered that having long day length inhbits flowerling. Those orchids that bloom and grow naturally during the winter I seperate from the rest of my orchids
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  #302  
Old 06-30-2020, 02:58 PM
orchitech orchitech is offline
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Which orchids in YOUR collection get a winter rest?
Default Cattleyas.

There are three cattleyas that need a drastic reduction of water during the winter or the roots will rot in a heartbeat.
C. Acclandiae, C. Violacea, and C. Schilleriana.
I always have read that Dowiana roots will rot if watered in winter, but it is not my case. Those three along with Schrodera are more sensitive in my experience.
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  #303  
Old 09-17-2020, 05:23 PM
Rhonda Svoboda Rhonda Svoboda is offline
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Which orchids in YOUR collection get a winter rest? Female
Default Winter rest

Hi CB977:
You talked about watering but not light. Can you expand on that? Do you have a greenhouse?
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  #304  
Old 07-19-2021, 10:52 AM
AU77 AU77 is offline
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Which orchids in YOUR collection get a winter rest?
Default Winter Rest

I have two, I think, that need a winter rest.

Dendrobium nobile Love Memory ‘Fizz’
Dendrobium nobile Red Emperor ‘Prince’

If I am incorrect, please let me know.

Last edited by AU77; 07-19-2021 at 10:54 AM.. Reason: Clarification
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  #305  
Old 07-19-2021, 03:57 PM
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estación seca estación seca is offline
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Which orchids in YOUR collection get a winter rest? Male
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Quote:
Originally Posted by AU77 View Post
I have two, I think, that need a winter rest.

Dendrobium nobile Love Memory ‘Fizz’
Dendrobium nobile Red Emperor ‘Prince’

If I am incorrect, please let me know.
Take a look here. This is the company that hybridized and introduced your plants:
Yamamoto Dendrobiums: Caring

Yamamoto Dendrobiums: Hints

Winter rest means no fertilizer and less water. They are likely to be severely damaged or even die if you don't water them at all.
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  #306  
Old 08-23-2021, 07:53 AM
Orchidgirl86 Orchidgirl86 is offline
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Which orchids in YOUR collection get a winter rest?
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Hi. I know my dendrobium noble needs a winter rest but does anyone else in my list need a rest too?
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  #307  
Old 08-23-2021, 08:28 AM
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Which orchids in YOUR collection get a winter rest?
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Welcome to the forum Orchidgirl, I will just quote the latest good post on this topic since this post has lots of opinions and has evolved

Quote:
Originally Posted by Roberta View Post
It isn't showing any signs of slowing down, so keep up the watering at the current rate as long as it has flowers. Once the flowers drop, you can cut back the watering somewhat, but unless you see leaves start to yellow, don't push it too hard. First, it's a hybrid, and very likely part of its ancestry doesn't slow down as much as Den. nobile does. Also, it may have had its seasons manipulated with light and temperature to get it to bloom now. (A blooming orchid is worth a lot more than a bare one...) Even the species Den. nobile does not go completely dormant in my experience. When I first started out in orchids I received the advice "no water between Halloween and Valentine's Day" ... and several died before I figured out that this was too severe. I suggest that temperature drop is probably at least as important in inspiring flowers as the dry period. So once it stops blooming, perhaps put it in a sun room or on a windowsill close enough to the glass to feel a chill at night. If it doesn't show signs of blooming in the spring but waits next year until summer or fall, then you know that it has ancestry that includes fall bloomers as well as Den nobile. After a year or so in your care, it will revert to a natural cycle (whatever that may be) no matter what manipulation it may have received this year.

If you analyze what Roberta has posted you shouldn't force a winter rest on the orchid.

They go through a winter rest just by being in the UK!!!

Sun light hours drop, light levels decrease, clouds appear more, temperatures drop. This is what happens in winter and the plant "rests" as a result but like Roberta says they aren't really dormant or resting at all, in fact in this period they are secretly being extremely busy gearing up to flower in spring.

They need to collect the energy to produce flowers very very fast once spring time hits. Cold night temperatures means the orchids don't lose too much energy at night, additional light can be beneficial in the height of winter to help the plant build up energy.

There is a myth that a stressed orchid can flower better. Don't fall for myths.

The main thing to remember is that orchids drink less in winter and colder temperatures can cause fungal infections in too wet conditions so in winter watering should absolutely be adjusted so as not to overwater but don't purposefully let orchids dry out either.

I know there are people that completely disagree with me and get their dendrobiums to flower every year. Like brad's greenhouse on youtube actively encourages months of drying out in winter.

So yes orchids are pretty hardy and can tolerate quite a lot. Now everyone has to experiment and try for themselves. In a cold greenhouse there might be enough condensation forming in winter that no watering is needed even if the orchids are getting water from somewhere.

The one thing i dislike is someone claiming something is the only way to do something without having ever tried an alternative! Lots of things work, some things work better than others.

Always worth remembereing

Last edited by Shadeflower; 08-23-2021 at 08:39 AM..
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  #308  
Old 08-23-2021, 09:42 AM
Orchidgirl86 Orchidgirl86 is offline
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Which orchids in YOUR collection get a winter rest?
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Quote:
Originally Posted by Shadeflower View Post
Welcome to the forum Orchidgirl, I will just quote the latest good post on this topic since this post has lots of opinions and has evolved




If you analyze what Roberta has posted you shouldn't force a winter rest on the orchid.

They go through a winter rest just by being in the UK!!!

Sun light hours drop, light levels decrease, clouds appear more, temperatures drop. This is what happens in winter and the plant "rests" as a result but like Roberta says they aren't really dormant or resting at all, in fact in this period they are secretly being extremely busy gearing up to flower in spring.

They need to collect the energy to produce flowers very very fast once spring time hits. Cold night temperatures means the orchids don't lose too much energy at night, additional light can be beneficial in the height of winter to help the plant build up energy.

There is a myth that a stressed orchid can flower better. Don't fall for myths.

The main thing to remember is that orchids drink less in winter and colder temperatures can cause fungal infections in too wet conditions so in winter watering should absolutely be adjusted so as not to overwater but don't purposefully let orchids dry out either.

I know there are people that completely disagree with me and get their dendrobiums to flower every year. Like brad's greenhouse on youtube actively encourages months of drying out in winter.

So yes orchids are pretty hardy and can tolerate quite a lot. Now everyone has to experiment and try for themselves. In a cold greenhouse there might be enough condensation forming in winter that no watering is needed even if the orchids are getting water from somewhere.

The one thing i dislike is someone claiming something is the only way to do something without having ever tried an alternative! Lots of things work, some things work better than others.

Always worth remembereing
Thanks so much for that answer. My nobles didn't reflow this year but threw off alot of keikis. Hopefully I will get some flowers soon 🙈
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Miniature Cymbidium
Cymbidium erythrostylum
Bulbophyllum wilbur chang
Coelogyne pulverula
Oncidium globuliferum
Oncidium ornithorhynchum
Oncidium various
Dendrobium noble
Miltonia
Dendrobium s a nook
Various phals
Masdevallia hybrids
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  #309  
Old 10-02-2021, 08:59 PM
AdeleDS AdeleDS is offline
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Which orchids in YOUR collection get a winter rest?
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I've got a small den. nobile Love Memory Fit that I'm told needs winter rest. I'm in Canada; the days are shorter now and the nights are down to about 12 Celsius. I have it out in the day (dappled shade on a south-facing balcony, about 18-20 C.) but I bring it in at night. I'm not sure whether to start cutting back on the watering - because it is still growing new leaves! Any advice is welcome.

Last edited by AdeleDS; 10-02-2021 at 09:17 PM..
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  #310  
Old 10-02-2021, 09:16 PM
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Roberta Roberta is offline
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Which orchids in YOUR collection get a winter rest? Female
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You will be bringing it soon, that will be the time to cut back - but not completely dry. Just water less often (it won't dry out as fast either) and no fertilizer. You might want to put it near a window where it is cool, since I suspect that that cool nights, more than drying out, provides the trigger for spring blooming.
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