Yellowing of my Phalaenopsis gigantea leaves

[Alexey_G]

I have this Phalaenopsis tougher with all the others and they have no issues so far. I'm not sure why only this plant in a matter of a couple of days showed this yellowing.

Any idea of what it might be and a possible solution?

[Dalachin]

What are your growing conditions? If you search the Phalaenopsis species forum there is a loooong thread about gigantea. It definitely seems to be on the finicky side for me…. mine has rapidly lost leaves and roots when conditions have changed for it.

[Alexey_G]

Originally Posted by Dalachin

What are your growing conditions? If you search the Phalaenopsis species forum there is a loooong thread about gigantea. It definitely seems to be on the finicky side for me…. mine has rapidly lost leaves and roots when conditions have changed for it.

Sorry for the late reply.

I keep it with all the other plants in my plant cabinet. It sits at about 25-30°C under artificial lights which it seems to have enjoyed for a while, the roots are very healthy, however it has now completely dropped off this leaf. The humidity is kept high by the plants around, however, it isn't too high, especially since I don't have great ventilation and use a fan to keep the air moving around the room (it doesn't point directly on the leaves).

[Dalachin]

Here is my gigantea… it is not so giant. I decided to mount it, and it lost the two large leaves it came with, and has grown these little ones and a long root. I’ve had it for 9 months now.

My conditions are similar to yours in the grow tent… 80s during the day, 70s at night, above 60 percent humidity. Mounts get misted twice a day.