---
title: "Any idea on what's going on with this cactus? I water only when dry."
description: "Any idea on what's going on with this cactus? I water only when dry."
url: "https://getplanta.com/community/lKxUkhzRR_aIJD7o1QvtwQ/jKY4sIZVn9e5WmVSRWup9l?language=ja"
community: "Pests, diseases and problems"
author: "MummaDeb"
published: "2025-02-08T12:26:45.161663Z"
language: "en"
image: "https://images.getplanta.com/v1/resize/MOXcw7te6S9UHjaWvEfp257jXZmEcofyef83nx6UvFY/V5RpiYV4SWufbBPC5HOtbg.webp?size=large"
---

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# Any idea on what's going on with this cactus? I water only when dry.

_MummaDebさんが2025-02-08に投稿しました_

Any idea on what's going on with this cactus? I water only when dry.

![2件中1件目の添付ファイル](https://images.getplanta.com/v1/resize/MOXcw7te6S9UHjaWvEfp257jXZmEcofyef83nx6UvFY/V5RpiYV4SWufbBPC5HOtbg.webp?size=large)

![2件中2件目の添付ファイル](https://images.getplanta.com/v1/resize/MOXcw7te6S9UHjaWvEfp257jXZmEcofyef83nx6UvFY/O6hMBkl7R36eYo3NS4ce8w.webp?size=large)

## 8件のコメント

### Alyssaさんが2025-02-08にコメントしました

Hmmm have you had any pests near it? Or any physical damage to it?

#### MummaDebさんが2025-02-08に返信しました

Not that I'm aware of

### KJMさんが2025-02-08にコメントしました

You might want to check in with the cactus and succulent group for more experienced advice. I have a couple cactus but I am certainly not familiar with this problem. It looks like it's beginning to rot on the top. I couldn't tell you why. There are some that would suggest cutting the discolored area off so the rot does not spread downward into the plant. I really don't know if that's a good piece of advice or not.

### KJMさんが2025-02-08にコメントしました

I just did a little more research and it said rot can be caused by too high of humidity which leads to bacterial growth in the tissue.

#### MummaDebさんが2025-02-08に返信しました

Thanks

### Wolfen 🐺さんが2025-02-08にコメントしました

You may want to check the roots for any rot. Is the media you used soil + perlite? It could have been staying wet to long

#### MummaDebさんが2025-02-08に返信しました

Yep. Soil and lots of pearlite. Same thing I use in all of my succulents. It didn't stay wet for long. Strange.

#### Wolfen 🐺さんが2025-02-08に返信しました

Hhmmm it could be just surface then? You could try to treat with a fungicide or peroxide

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