Purple Equitant Oncidium

[Lucinda Brown]

I have several bareroot oncidium equitants, either in teak baskets or mounted. Two are getting a purplish tinge to their leaves. I'm thinking this may be a sign of too much light. They are generally healthy in every other way. The purplish tinge has me befuddled, though. Anybody out there know why,for sure, this is happening?

[mayres]

My assumption would be exactly the same as yours. I put most of my orchids outside for the summer and quite a few of them also got reddish/purple-ish tinged - lots of sunshine. I was led to believe that this would stick with them when I brought them back in, but they already seem to be fading back to more green after three weeks inside. mike

[jerrymeola]

It is a result of extra sun and it can be just a little extra. It is happening now when the sun lower in the sky is less intent in intensity.

I have some turning purple on the bench when the same species next to it is totally green. Each plant reacts a little different.

A little more shade is called for.