---
title: "Bird's Nest Fern is growing big but started developing brown spots on…"
description: "Bird's Nest Fern is growing big but started developing brown spots on leaves. Any advice? I've had her about 6 months, 3-6 inches under a grow light. She's in…"
url: "https://getplanta.com/community/lKxUkhzRR_aIJD7o1QvtwQ/4cMgLamgRMyB0FXP7RgokQ?language=ja"
community: "Pests, diseases and problems"
author: "Squid"
published: "2024-09-09T13:52:03.618714Z"
language: "en"
image: "https://images.getplanta.com/v1/resize/-38YuqKtljM-fssDFTDQdkGbP2n9jRU-BwQzjNXBffc/yPsdNb7DTnGofSA-W8hfsg.webp?size=large"
---

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# Bird's Nest Fern is growing big but started developing brown spots on…

_Squidさんが2024-09-09に投稿しました_

Bird's Nest Fern is growing big but started developing brown spots on leaves. Any advice? I've had her about 6 months, 3-6 inches under a grow light. She's in a 4" drainage pot with coco coir based substrate. Watering according to Planta, but thinking it might be too much,roughly once a week.

![2件中1件目の添付ファイル](https://images.getplanta.com/v1/resize/-38YuqKtljM-fssDFTDQdkGbP2n9jRU-BwQzjNXBffc/yPsdNb7DTnGofSA-W8hfsg.webp?size=large)

![2件中2件目の添付ファイル](https://images.getplanta.com/v1/resize/-38YuqKtljM-fssDFTDQdkGbP2n9jRU-BwQzjNXBffc/6JnQzVWITB6y6OOZ7Fld6g.webp?size=large)

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