---
title: "Hello! I recently repotted my alocasia negra/plumbea. I found 3 corms…"
description: "Hello! I recently repotted my alocasia negra/plumbea. I found 3 corms and have them sitting I water to hopefully grow. I’ve noticed that they’ve all turned a…"
url: "https://getplanta.com/community/8YJLrBkOSo27kyNSisgUpA/csSwk4YdGHITiGH3jg5WlM"
community: "Alocasia Aficionados"
author: "Planta member"
published: "2026-05-05T21:28:50.497231Z"
language: "en"
image: "https://images.getplanta.com/v1/resize/0FvYJLM8qsOBCQgbtTZ7uqcfDeAXDnQlZblEf1cMGLk/Kqo-40K8SrCUo_GsFuYHkQ.webp?size=large"
---

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# Hello! I recently repotted my alocasia negra/plumbea. I found 3 corms…

_Posted by Planta member on 2026-05-05_

Hello! I recently repotted my alocasia negra/plumbea. I found 3 corms and have them sitting I water to hopefully grow. I’ve noticed that they’ve all turned a dark color from the original white when I first peeled them. Is this normal? How long does it take to begin sprouting? These are about 2wks old now.

![Attachment 1 of 1](https://images.getplanta.com/v1/resize/0FvYJLM8qsOBCQgbtTZ7uqcfDeAXDnQlZblEf1cMGLk/Kqo-40K8SrCUo_GsFuYHkQ.webp?size=large)

## 5 comments

### plantgeek commented on 2026-05-05

it's normal if they're still solid and have no smell. sometimes the skin oxidizes again and makes a new peel. looks like you already have a little root, shouldn't be too much longer! maybe another two weeks

#### Planta member replied on 2026-05-06

Thanks! I hope you’re right. If the other 2 don’t do anything, would putting them in sphagnum moss help?

### Yup commented on 2026-05-06

As long as it's not rotting, you'll be good.

### 802PlantDad commented on 2026-05-06

I have tried a few ways to propagate corms, and recently found a crazy easy way. I pulled 4 out from a MetalHead, and said, i wonder if i put them in a ziplock ,sandwich bag and on the window sill if they would sprout. Spray them w a little water every few days, and we are at 3 of 4 at this point having great roots coming and 2 have leafs already. Time has been about 4-5 weeks. Best advice i can give, NEVER let them dry out. Not even for an hour! Once they have secondary roots, put them in your substrate. Good luck!

#### Planta member replied on 2026-05-09

I hadn’t thought of that! I actually put one in sphagnum moss to see if that does anything. I still have just 1 root coming out of the one in water.

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