---
title: "Cactus turned black and got skinny. I don’t even know what cactus it…"
description: "Cactus turned black and got skinny. I don’t even know what cactus it is, it was just given to me. Dr planta is saying it could be any number of things."
url: "https://getplanta.com/community/lKxUkhzRR_aIJD7o1QvtwQ/icOq9qwK2JR8lqd2gJ5BiF"
community: "Pests, diseases and problems"
author: "Disasterhag"
published: "2025-04-25T15:10:19.270127Z"
language: "en"
image: "https://images.getplanta.com/v1/resize/8JjDuB7-R2uDsGXf2vWOO39ka_8w7dAQQ2nK2yKmqsY/l5u9rm8wSOmtlSHBR710Tw.webp?size=large"
---

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# Cactus turned black and got skinny. I don’t even know what cactus it…

_Posted by Disasterhag on 2025-04-25_

Cactus turned black and got skinny. I don’t even know what cactus it is, it was just given to me. Dr planta is saying it could be any number of things.

![Attachment 1 of 1](https://images.getplanta.com/v1/resize/8JjDuB7-R2uDsGXf2vWOO39ka_8w7dAQQ2nK2yKmqsY/l5u9rm8wSOmtlSHBR710Tw.webp?size=large)

## 6 comments

### Wolfen 🐺 commented on 2025-04-25

It needs more light probably. If the skinny portion isn't new growth, it also needs a bit more water.. like a touch more

#### Disasterhag replied on 2025-04-25

The I’ve also been told overwatered.

#### Wolfen 🐺 replied on 2025-04-25

That looks dark green on my screen, not black. Black indicats rot, which is usually overwatering. And generally that will start at the base area unless its from a wound or something

### Toaster commented on 2025-04-25

I think it’s under watered. Black and wrinkly with dry soil is under watered. Overwatered it would become yellow and have extremely wet soil.

### Carmine @ Hort Spec commented on 2025-04-26

The black top and lighter green bottom suggest stress, inconsistent watering, and possible climate shock. Check for any signs of rot. Cacti don’t need excessive watering — let the soil fully dry out between waterings. Once stable and growing again, you can fertilize lightly to support recover

### Roro commented on 2025-04-26

Over watering and maybe not enough light :)

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