--- title: "Hi everyone, Does anyone else have problems with mold growing on top…" description: "Hi everyone, Does anyone else have problems with mold growing on top of their soil? What can I do to prevent this? I have googled it before and it told me to…" url: "https://getplanta.com/community/lKxUkhzRR_aIJD7o1QvtwQ/ZbViE0i6nKdtx68hhnV9cZ?language=ja" community: "Pests, diseases and problems" author: "Kailee" published: "2025-07-18T22:32:29.297391Z" language: "en" image: "https://images.getplanta.com/v2/cloudinary/global_data/communities/pestsDiseasesAndProblems.jpg" --- [コミュニティ](https://getplanta.com/community.md?language=ja) / [Pests, diseases and problems](https://getplanta.com/community/lKxUkhzRR_aIJD7o1QvtwQ.md?language=ja) # Hi everyone, Does anyone else have problems with mold growing on top… _Kaileeさんが2025-07-18に投稿しました_ Hi everyone, Does anyone else have problems with mold growing on top of their soil? What can I do to prevent this? I have googled it before and it told me to add cinnamon to the top soil. I’ve done that but mold still comes back. Any advice helps. Sincerely, So tired of scraping off mold. ## 10件のコメント ### EllaBea’s Forestさんが2025-07-18にコメントしました I haven’t tried this, but heard about it. If you use very dense soil or compost, it’s good outside, but gets moldy inside. Ways to combat this is to monitor if you’re over watering, mix in perlite, and put pebbles under your pot for drainage. ### fueyさんが2025-07-18にコメントしました There’s a lot of people with this problem and this is my response from another thread: “I use Mollys Aroid Mix and Sol Soils Chunky mix primarily. I will typically add more perlite to it also. Bottom-watering and not getting the topsoil wet will also help the soil dry out faster. I have one plant that got mold on it that was large enough to me to scrape out the moldy soil and replace it with about 2 inches of rock (i used pon since that’s what i had on hand). you can also use LECA or other rocky “soils”.” ![1件中1件目の添付ファイル](https://images.getplanta.com/v1/resize/7SKbucSsa3x7Hc0JE52ZouSTCYSUkYi4knafwIFj7BY/RKNIlyGBRrClPicJbwfvnw.webp?size=large) ### Kaileeさんが2025-07-18にコメントしました Thank you both! I’ll be buying perlite tomorrow! #### fueyさんが2025-07-18に返信しました To prevent mold, Arbor sells a fungicide in a little purple bottle you can mix with your normal watering water. It helps in preventing it, but it is not a cure for when it is already out of hand. ### BlondeinBrooklynさんが2025-07-18にコメントしました Are you using a Neem pest spray or Mosquito Bits? That's how I got mold. I'm using different pest control methods now \& pretty much put some top cover (LECA, pebbles, lava rocks, vermiculite, dry spaghnum -depending on plant) on every plant which addresses both pest eggs \& reduces surface moisture that mold needs. #### Kaileeさんが2025-07-18に返信しました I am! I have a neem spray. I’ll stop this immediately. I’ll look up those other things you mentioned. I’m willing to try anything! #### BlondeinBrooklynさんが2025-07-18に返信しました i started using MicrobeLift BMC2 which is a liquid you add to the water you use on plants. Kills any larvae growing in plant. I also am adding systemic granules to new plants which repels most insects as it gets into new growth in the plant \& makes it inhospitable. #### Sunnyさんが2025-07-18に返信しました Neem oil is a good natural pesticide. I would continue using it. I’ve never gotten mold from neem oil or mosquito bits. I have over 200 plants in a high humidity zone 9 area. Mold (Fungus) grows easily on continuously moist soil especially soil with rich organic matter like peat moss. Low air circulation and low light can contribute to the growth. Higher temperatures can increase the chance of growth. A commercial fungicide can kill the mold. Changing the soil to one with better drainage (include coco coir, orchid bark, perlite), letting the soil dry down or dry out between watering and increasing air circulation around the plants can decrease the likelihood of growing mold. 🪴🍀 ### Kaileeさんが2025-07-18にコメントしました Thank you so much! ### Mermaidさんが2025-07-19にコメントしました You can also do a 3% hydrogen peroxide diluted mix, and spray the top of the soil. The mold goes away, and it helps with pest control. --- _Plantaコミュニティ (https://getplanta.com)。閲覧はどなたでも可能です。投稿、コメント、いいねをするには、Plantaアプリをダウンロードしてください: https://getplanta.com/download_