Hello can anyone advise with my Zygopetalum. I believe I have Louisedorf and a couple of Arthur Elle. I've had these plants about 7 years but I never get to build up a good solid plant. I get a new bulb, it sprouts leaves, it flowers, then just as the flowers begin to die, the leaves start to turn yellow and have a brown colouring starting from the tip down. Looking at it I imagined the brown might feel soggy like rot when I touched it, but it was dry.
I tend to keep them off the windowsill as the strong light didn't do them much good, average room temperature for the UK and I water once a week.
Is this normal behaviour for a Zygo - they do keep surviving with new bulbs forming but shouldn't I be able to keep the leaves after flowering?
Thanks for any suggestions