Yellow Leaves on plants

[Ethan]

Hi, Dennis!

I looked at the pics in your gallery showing the problem you're having. It looks like your dend. is a phalaenopsis-type dendrobium which is the only kind that I have. From your pictures, it looks like it's normal what is happening. It seems the yellow leaves are on the older growths - eventually those die and fall off, but turn yellow before doing so. Everything else looks good, roots and medium, etc.

I wouldn't worry unless there are more dramatic changes. Two questions - what is your humidity level and how often are you watering? If they are being kept too dry they may shed some leaves to preserve energy.