I have this white flower orchid (Phalaenopsis), for many years now. I got it as a present once, I think more than 15 years ago. And ever since it survived and produces new branches each year, but... most of the buds seem to become yellow (and drop off) before they open up into flowers. Usually a few buds will make it into flowers, but most of them just drop off before that. My question is, what is the cause of that? Can I prevent it? Like you can see on the picture, this year I even have 3 branches (new record), but the first yellow buds already appear before the first flower!
Hope to find some real orchid experts here. The plant is kept in the living room close to a west facing window, but about a meter away from it so it does not take direct sunlight. I give it water every week or every two weeks (depends on how dry the wet/soil is). During spring/summer it gets some liquid fertilizer.