---
title: "So, I just repotted a bunch of plants and for some reason a few of…"
description: "So, I just repotted a bunch of plants and for some reason a few of them seem to have gotten mold on the top. I would have guessed it was the soil except none…"
url: "https://getplanta.com/community/lKxUkhzRR_aIJD7o1QvtwQ/6500c9dafbb6265a76eda435?language=ja"
community: "Pests, diseases and problems"
author: "Kalina"
published: "2023-09-12T20:28:10.755Z"
language: "en"
image: "https://images.getplanta.com/v1/resize/TiK-QZybJwuJTzOn-36FDlRomD3Vr9WvuYon_AFGzEs/79beb8fe9c524daca74cd8f0687df082.webp?size=large"
---

[コミュニティ](https://getplanta.com/community.md?language=ja) / [Pests, diseases and problems](https://getplanta.com/community/lKxUkhzRR_aIJD7o1QvtwQ.md?language=ja)

# So, I just repotted a bunch of plants and for some reason a few of…

_Kalinaさんが2023-09-12に投稿しました_

So, I just repotted a bunch of plants and for some reason a few of them seem to have gotten mold on the top. I would have guessed it was the soil except none of the ones with mold were from the same batch/bag of soil. Anyone know why this is happening or know of a way to prevent/deal with the problem?

![1件中1件目の添付ファイル](https://images.getplanta.com/v1/resize/TiK-QZybJwuJTzOn-36FDlRomD3Vr9WvuYon_AFGzEs/79beb8fe9c524daca74cd8f0687df082.webp?size=large)

## 6件のコメント

### Plantaメンバーさんが2023-09-12にコメントしました

Start by isolating your plant, since mold can quickly spread from one pot to another. Then, in a well-ventilated area, scrape away the top few inches of soil. If the mold is relatively new, that should do the trick. If the mold is deeper than an inch or returns after a few weeks, you need to repot the plant entirely using an organic soil made for potted plants.

### Plant Fatherさんが2023-09-12にコメントしました

the first and last pictures look more like mineral build up than mold to me. fungi growing on the soil surface aren’t inherently harmful, it is however an indicator of either over watering, not enough airflow, or both

#### Kalinaさんが2023-09-13に返信しました

How does mineral build up occur? And would it be possible for it to happen within a month of repotting?

#### Plant Fatherさんが2023-09-13に返信しました

it comes from extra salts and other minerals in your tap water. it can accumulate in as little as one watering i’ve found if the water is particularly mineral-heavy

#### Kalinaさんが2023-09-13に返信しました

Do you think it would happen to all of them if that were the case or is it possible to only have it happen with some?

### LadyImpatientさんが2023-09-13にコメントしました

I get this same thing when there’s not enough air flow on my plants or not enough drainage.

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