---
title: "I need to cold stratify some seeds but I'm worried because last time…"
description: "I need to cold stratify some seeds but I'm worried because last time I tried, the seeds got moldy. Any tips?"
url: "https://getplanta.com/community/GpJkJG2qS7KZ7LpSwQwhSg/iK89VozHGczYNEGOR5TZsM"
community: "Propagating & Sowing"
author: "Nicole"
published: "2025-11-24T21:28:07.869983Z"
language: "en"
image: "https://images.getplanta.com/v2/cloudinary/global_data/communities/propagatingAndSowing.jpg"
---

[Community](https://getplanta.com/community.md) / [Propagating \& Sowing](https://getplanta.com/community/GpJkJG2qS7KZ7LpSwQwhSg.md)

# I need to cold stratify some seeds but I'm worried because last time…

_Posted by Nicole on 2025-11-24_

I need to cold stratify some seeds but I'm worried because last time I tried, the seeds got moldy. Any tips?

## 6 comments

### Waspinator commented on 2025-11-24

Try cleaning the seeds with hydrogen peroxide and using distilled water

#### Nicole replied on 2025-11-25

Hydrogen peroxide seems a little aggressive for little baby seeds but then again I dont know a ton about plant care yet...

#### Waspinator replied on 2025-11-25

Because most seeds have a hard outer shell, it usually isn't an issue. You can always dilute it or rinse them with water afterwards

#### Nicole replied on 2025-11-25

Oh gotchya, thanks!

### Auxsman commented on 2025-11-25

30% hydrogen peroxide in 70% water, spritz it while you wash them \& pray they grow big and strong😁

#### Nicole replied on 2025-11-25

Awesome thanks!

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