---
title: "Hi all. I'm looking for help. I've noticed my inside plants keep…"
description: "Hi all. I'm looking for help. I've noticed my inside plants keep growing mold or powdery mildew on the top layer of the soil. I'm trying to figure out what's…"
url: "https://getplanta.com/community/lKxUkhzRR_aIJD7o1QvtwQ/PR9994EExA6dv10wvSUAln?language=ja"
community: "Pests, diseases and problems"
author: "Karina"
published: "2024-12-17T16:40:23.317503Z"
language: "en"
image: "https://images.getplanta.com/v1/resize/dKGJcvWmVCF2eEWhH-963CuKWjWyaxFNgaxSyTBjwsU/D4hIYhUGRDO3EvJ5wcTQaw.webp?size=large"
---

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# Hi all. I'm looking for help. I've noticed my inside plants keep…

_Karinaさんが2024-12-17に投稿しました_

Hi all. I'm looking for help. I've noticed my inside plants keep growing mold or powdery mildew on the top layer of the soil. I'm trying to figure out what's causing it. Is it a lack of circulation or overwatering? Should I re-pot all my plants? Looks like the below.

![1件中1件目の添付ファイル](https://images.getplanta.com/v1/resize/dKGJcvWmVCF2eEWhH-963CuKWjWyaxFNgaxSyTBjwsU/D4hIYhUGRDO3EvJ5wcTQaw.webp?size=large)

## 9件のコメント

### Aishaさんが2024-12-17にコメントしました

That kind of looks like the mineral buildup my own are sustaining. Do you use tap water?  
I do too. Apparently you’re supposed to give it a thorough rinse with distilled water periodically. I have yet to do that. I would need GALLONS to do that.  
If it is mold then you’re probably just watering too frequently and/or the soil is too dense.

#### Karinaさんが2024-12-17に返信しました

Okay I'll try that. I use equal parts potting soil, perlite and orquid bark for my soil so I hope it's not that.

#### Aishaさんが2024-12-17に返信しました

Sounds like a pretty decent mix. It’s probably mineral buildup.

### nosugartonightさんが2024-12-17にコメントしました

I have this issue too. If it is mould it shouldn’t harm your plants (that’s what I’ve always been told/heard). It’s just unsightly.

Mineral deposits aren’t great long term. Try a water conditioner also used for fish aquariums.

### 9sさんが2024-12-17にコメントしました

Im 99% sure this is root mealies. Only real way to treat is to propagate the plant :/ you can use a systemic with imidacloprid but they can come back if you don’t get them all.

![1件中1件目の添付ファイル](https://images.getplanta.com/v1/resize/HikA2sjMhhAa2KieI2LCNEE757XFAGUmEL0WnSd8phM/QIvhnvSISpeBmFKomqqOYw.webp?size=large)

#### 9sさんが2024-12-17に返信しました

Also wanted to note mineral build up will change colors if you wet it. Root mealies stay white and look like mold/cotton fuzz.

#### Karinaさんが2024-12-18に返信しました

This is the worst news I could have received. They are fuzzy 😢

#### 9sさんが2024-12-18に返信しました

I just had to repot 30 Hoyas with the same problem - I’m here with you in your pain ☹️

#### 9sさんが2024-12-18に返信しました

Here’s a photo of what mine looked like. My whole plant was wilting and I couldn’t figure out why until I pulled it out :(

![1件中1件目の添付ファイル](https://images.getplanta.com/v1/resize/HikA2sjMhhAa2KieI2LCNEE757XFAGUmEL0WnSd8phM/hyJKAoCsQwWfS2MQpU-3Fw.webp?size=large)

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