---
title: "Help! This white mildew / mold keeps growing back on the top layer of…"
description: "Help! This white mildew / mold keeps growing back on the top layer of my Monstera. I’ve started watering it less and I also used hydrogen peroxide in the soil…"
url: "https://getplanta.com/community/lKxUkhzRR_aIJD7o1QvtwQ/a3agdMKCpLDJj87iErWg4i"
community: "Pests, diseases and problems"
author: "Taylor"
published: "2025-12-05T15:38:58.617407Z"
language: "en"
image: "https://images.getplanta.com/v1/resize/K__nqqoXONphrC7IzQVzwmzEEcmqqSTSUBlB371TwRE/6r_RlseaRviBXGptBwxLZw.webp?size=large"
---

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# Help! This white mildew / mold keeps growing back on the top layer of…

_Posted by Taylor on 2025-12-05_

Help! This white mildew / mold keeps growing back on the top layer of my Monstera. I’ve started watering it less and I also used hydrogen peroxide in the soil after removing about an inch of soil two weeks ago, and it’s back again.

What do I do? 😭

![Attachment 1 of 1](https://images.getplanta.com/v1/resize/K__nqqoXONphrC7IzQVzwmzEEcmqqSTSUBlB371TwRE/6r_RlseaRviBXGptBwxLZw.webp?size=large)

## 9 comments

### Uncle Derrick commented on 2025-12-05

Cut back on the water and get some copper based fungicide

### Uncle Derrick commented on 2025-12-05

You may even need to add some perlite to help with drainage

#### Taylor replied on 2025-12-05

Does the perlite go on top and then get watered or need to be mixed into the soil?

### Uncle Derrick commented on 2025-12-05

You mix it in with the soil

#### Taylor replied on 2025-12-05

Thank you!

### Uncle Derrick commented on 2025-12-05

No problem

### Shari commented on 2025-12-05

Remove all the powdery mildew from the plant. Besides cutting back on watering I would replant in an aroid mix. Make sure to check your roots when you do.

### Paula commented on 2025-12-06

Changing the soil and cutting back on watering should get rid of it

### Melody commented on 2025-12-06

This also happened to my plant. It kept coming back no matter what I did. I ended up having to get rid of all of its soil and wash the entire plant with water. I also replaced the top layer soiled a perlite and pumice mix to be extra safe. It’s been 2 months and it thankfully hasn’t come back.

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