Den. Unicum with Yellowing Cane
I've had this mounted Den. Unicum for just over a year. It's small but has bloomed twice since I got it. As you can see, the newest cane is yellowing/dying and I have no idea why! I know this species is deciduous but I don't think that's what is going on here. The plant hangs in a south facing window with an overhang and gets watered at minimum every other day. It's been hot so I've been trying to water every day.
As far as I know the plant has not been subjected to mechanical damage of any sort and I'm the only one who handles it. Can anyone offer any advise?
Heather
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