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  #1  
Unread 05-05-2013, 12:20 AM
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Default Cattleya dowiana low temperatures

It is spring and I have put all the plants outside. Tonight the temps will drop 46'F/8'C for an hour or so. Most of my plants will be absolutely fine (even some hot-growing ones) but I have brought my dowiana aurea inside. What minimum temperature is safe to leave it outside?
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Unread 05-05-2013, 12:25 AM
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OrchidWiz says lows average 58F to 62F year round.
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Unread 05-05-2013, 12:44 AM
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Thanks! I have learned that each plant is unique in its tolerance of out-of-range temperatures and I didn't want to take any chances after hearing how finicky it is said to be. I will continue to bring it in, then, until the nights are warmer.
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Unread 05-05-2013, 01:46 AM
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Catt. dowiana can be allowed to dip into the mid 50's if it is dry. A moist one might not do too well in such temps, but if it is warm during the next day it should be ok.
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Unread 05-05-2013, 11:16 PM
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I've had temps in my plant room down to 58 at night, with 82 F in the day time and mine have been fine and seem very happy. Wow, 46 is low. I think I would bring mine in for those temps.
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Unread 05-06-2013, 10:29 AM
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Thankyou! Spring is always a fun time of carrying plants in and out. Most of my plants are fine above 45'F (night temps) but I do lug in the ones for the night that would be adversely affected. Day temps are in the 70's('F).
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Unread 05-06-2013, 10:29 AM
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Quote:
Originally Posted by silken View Post
OrchidWiz says lows average 58F to 62F year round.
You are correct, but what was the diurnal range of the lows? 58-62F was the average. I always understood this to mean how much the temps could deviate from the average. It could go as low as the low 40s in their native habitat.

I believe 46F for a night should present no problem.
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Unread 05-06-2013, 10:34 PM
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I suggest you take it inside. Dowiana hates low temps; it will get all sulky on you. They love to be kept on the dry side; so a porous mix that dries quickly and potted in basket or clay pot (if pot, pot on the smaller side).
I am trying my hand with Dowiana Aurea; its a seedling but i hope to see the fruits of my work down the road.
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