---
title: "Trying to grow the corms off my alocasias and the sphagnum moss keeps…"
description: "Trying to grow the corms off my alocasias and the sphagnum moss keeps growing fuzzy white mold. I wring out the moss very well before I put it in and I have a…"
url: "https://getplanta.com/community/GpJkJG2qS7KZ7LpSwQwhSg/zQsWN6jk81qm5Nmv2wLQYY"
community: "Propagating & Sowing"
author: "Alex"
published: "2026-01-11T20:57:27.188591Z"
language: "en"
image: "https://images.getplanta.com/v1/resize/jl2Cor73WWuQFRONqM2yW-ULCbIvSfajOTsmtsipt4Y/hzO1DwFeRuqMkf1tYkrKjg.webp?size=large"
---

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# Trying to grow the corms off my alocasias and the sphagnum moss keeps…

_Posted by Alex on 2026-01-11_

Trying to grow the corms off my alocasias and the sphagnum moss keeps growing fuzzy white mold. I wring out the moss very well before I put it in and I have a few air holes at the top for circulation but it keeps coming back even after cleaning it all with alcohol and using new moss. At a loss here. They’re rooting just fine but I don’t know what I’m doing wrong.

![Attachment 1 of 1](https://images.getplanta.com/v1/resize/jl2Cor73WWuQFRONqM2yW-ULCbIvSfajOTsmtsipt4Y/hzO1DwFeRuqMkf1tYkrKjg.webp?size=large)

## 2 comments

### Snail Diva commented on 2026-01-11

Moss is personally not my preferred method for corms but on your picture, this seems to be plant matters in your moss. Pouring boiling water on the moss can help before using it.  
Also, alcohol is really harsh for corm roots, I usually use peroxide for fuzz.

### Madison commented on 2026-01-12

I ran into the same problem anytime my propagation box included moss! I switched to just using perlite and it really helped. Maybe using something like just perlite and/or fluval stratum might prevent mold?

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