Ask a Question forum: Colocasia leaves turning yellow and droopy

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London, UK
Adonis
Jan 27, 2019 12:41 PM CST
Hi,

I have colocasia, planted in a pot indoors. Over the past couple of weeks, some of its older leaves have started developing yellow spots and some have wet/translucent centres. Eventually these leaves droop and so I cut them off. However, there is still new growth (two new leaves since I noticed this issue). I'm not sure what the problem is, over-watering? too little sunlight? blight? It had some mite infestations in the past year but managed to get rid of the mites and didn't look the same as this time. Photos attached - the last leaf I cut off, a couple of the existing leaves starting to droop and the new growth.

Thanks
A
Thumb of 2019-01-27/Adonis/f20271
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Name: Sally
central Maryland
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sallyg
Jan 27, 2019 1:29 PM CST
I think overwatering is not likely, given the type of plant, size of leaves and size of pot. Colocasia should take lots of water when warm and bright. SO I think it's not enough light to keep all the leaves going strong.
I have three related plants- Alocasia Odora, Colocasia Black Runner, Xanthosoma (grocery store yautia). They are outdoors in hot weather, indoors for winter. I don't have great light so I let them go more dry, they drop older leaves but refuse to go dormant and will just slow down and try to make new growth now and then.
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