Cattleya yellow leaf - light or water issue?
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  #1  
Old 06-13-2020, 07:15 PM
guccisimo85 guccisimo85 is offline
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Cattleya yellow leaf - light or water issue?
Default Cattleya yellow leaf - light or water issue?

Hello!

I just got this cattleya a couple weeks ago and one of the leaves is slowly going yellow and starting to wrinkle slightly. I had it in medium bark only and it seemed to be drying out too quickly (despite 70% humidity), so I repotted with a mix of medium and small bark, LECA and pumice stone.

I’m growing it under a full spectrum T5 LED but I can’t seem to get accurate light readings. Currently it measuring 13,000 lux around 6 inches below the lights - which is about how far I have it positioned above the leaves. From what I’ve read, cattleyas need around 30k lux, so I appear to be low on light. I recently lowered the lights though and since I don’t trust the reading, I am concerned I could actually be overdoing it with the light?

Any thoughts based on what you you see?

Perhaps someone also has a suggestion for a good T5 LED with reliable light levels?

Cattleya yellow leaf - light or water issue?-5dad0d4f-3439-4468-9e8f-c04a4dbdb8cb-jpg
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  #2  
Old 06-13-2020, 07:24 PM
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SouthPark SouthPark is offline
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Cattleya yellow leaf - light or water issue? Male
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That colour looks just fine there. In fact - looks very good.
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Old 06-13-2020, 09:44 PM
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estación seca estación seca is online now
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Cattleya yellow leaf - light or water issue? Male
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It looks fine. Most Cattleyas (not all) grow and flower best with somewhat yellowish leaves.
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Old 06-13-2020, 10:26 PM
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Quote:
Originally Posted by estación seca View Post
It looks fine. Most Cattleyas (not all) grow and flower best with somewhat yellowish leaves.
Yep, I agree!
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