
Grassidium
Makes grass alive! Adds the ability for grass, flowers, and ferns to spread and grow based on environmental conditions.
Screenshots


About this Mod
Grassidium makes grass alive! It adds the ability for grass, flowers, and ferns to spread and grow based on environmental conditions. Your world's static plants become a dynamic, spreading ecosystem that reacts to light, rain, and plant density.
✨ Features
| Feature | Description |
|---|---|
| 🌿 Dynamic Spreading | Plants won't stay put! Grass, flowers, and ferns slowly spread to nearby empty dirt blocks. |
| 🌱 Tall Growth | Small plants like grass and ferns can grow into their tall versions. |
| ☀️ Environmental Factors | Plant growth isn't random. It's affected by light levels (each plant has its preferred light) and grows faster in rain. |
| 👨🌾 Crowding | Plants won't spread if the area is too crowded with their own kind. |
| 🌻 Plant Species | The mod knows the difference between species (grass, fern, flower) for crowding rules. |
| 🚧 Obstacle Awareness | Plants check their path before spreading. Solid blocks stop growth, while fences or glass panes only lower the chance of spreading. |
| ⚙️ In-game Config | Change mod settings directly in the game (Mods -> Grassidium -> Config). Adjust spread chances, growth rates, rain effects, and more! |
⚙️ Configuration
You can change almost everything directly in the game! Go to Mods -> Grassidium -> Config. Or edit grassidium-common.toml.
Don't like a feature? You can disable spreading entirely, or fine-tune values to fit your game.
Available Versions
How to Install Grassidium on Your Server
Order Server
Order a Minecraft Java server with at least 4 GB RAM (6 GB recommended).
Set neoforge Loader
In the panel under "Egg", select the neoforge loader and matching Minecraft version (1.21.11).
Install Mod
Open the mod browser in the dashboard and search for "Grassidium". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.11, 1.21.10, 1.21.4 (+1 more)
Server-side
✓ RequiredRecommended RAM
6 GB(min. 4 GB)Frequently Asked Questions
Grassidium server crashes on startup – what to do?
Most common cause: wrong neoforge version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 4 GB RAM is allocated and the loader matches the mod version (1.21.11). You can switch loaders with one click in the panel.
Is Grassidium compatible with neoforge?
Grassidium officially supports neoforge for Minecraft 1.21.11, 1.21.10, 1.21.4. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Grassidium – how to optimize performance?
Recommended RAM: 6 GB (per 5 players). Use /spark profiler to check if Grassidium consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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Install Grassidium with just one click on your server.