Christmas Cactus Plants
Q.

Christmas cactus leaves are changing color.

Maxwelljames added on August 23, 2018 | Answered

My christmas cactus has been doing good since I moved in to my place back in 2016(it came with the house) it really livened up when we put it in the livingroom. But i have noticed in th4 last month or so that the leaves look a little more lighter or even have a grey tint to them like they have dust on them, But they arnt dusty. The leaves where thick tough and deep green a couple months back. Is this a bad sign? Someone told me 5o put rusty nails in the dirt to darken the color, but I\\\'m not sure if that\\\'s the issue. I\\\'ll attach photos.

A.
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Downtoearthdigs
Certified GKH Gardening Expert
Answered on August 26, 2018

The lighter leaf color can be due to lack of light.
From the photo I can't see the dusty leaves, but from your description it sounds like powdery mildew. This is not a fungus ofter found on indoor Christmas Cactus, but it can happen. Air flow around the plant can help.

https://www.gardeningknowhow.com/ornamental/cacti-succulents/christmas-cactus/advice-for-christmas-cactus-care.htm
https://www.gardeningknowhow.com/plant-problems/disease/powdery-mildew-homemade-and-organic-remedies.htm

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