| First of all, ALL orchids get yellow leaves that brown/darken and eventually fall off - and fall through winter is a pretty normal time for this to happen. Depending upon the type of orchid, some loose more leaves than others. Many phal type dendrobiums loose many/most of their leaves during this period. Initially people think they are doing something wrong - but this is NORMAL. Don't panic unless it is happening on the newest growth. In most cases, the leaves should be turning brown and falling off on the oldest growths first - on phals the bottom most leaf. Don't worry about cutting them off or pulling them off early. They will naturally fall off or drop with just a touch when the time is right/ripe.
Wieb - nothing in the pics you have shown appear to me to be particularly alarming assuming those leaves are not the newest growth.
Patlee - as long as you are talking the bottom leaf I would not sweat it. Some of my phals loose two leaves per season - as noted above, if so, let it dry and fall off on its own.
If I have mis-interpretted either comments please be more specific WHERE the leaves are on the plant and continue with the pics if possible - those are always good.  |