large brown mark on cactus

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NaZzAtAzEr
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large brown mark on cactus

Post by NaZzAtAzEr »

20220518_182444.jpg
What is wrong with my cactus? This side was facing the corner of my cold frame which was made out of wood. Is it possible that the wood "radiated" some dampness?
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ralphrmartin
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Re: large brown mark on cactus

Post by ralphrmartin »

Unheated in winter? Probably just got too cold.
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MikeT
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Re: large brown mark on cactus

Post by MikeT »

It's Oreocereus celsianus, which I've had take a few degrees of frost many times without harm. But this does like like physical damage, maybe cold, as Ralph suggests, or burn from strong sun - especially if sun early in the morning after frost in the night.
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