Grassidium
Makes grass alive! Adds the ability for grass, flowers, and ferns to spread and grow based on environmental conditions.
⬇ Download on Modrinth
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.
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.11
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as grassidium-neoforge-1.0.0-rc1+1.21.11.jar — drop this file into the mods folder
- Download size: 27 KB
- Download link checked 8 Sept 2026 — working
These come from our own check of the pack file, not from the source page.