Better Moss IMO
by firenh
Better Moss IMO is a Fabric world generation mod for 1.17.1 that changes where moss and azalea trees appear during world creation.
What it does
Bonemeal on moss under this mod produces grass, tall grass and moss carpets only, and it no longer spawns azaleas everywhere the way the base game does. Azaleas are still obtainable, and azalea tree leaves decay and drop saplings as usual. The mod also adds two world generation features: moss patches and azalea trees, both placed randomly across the world.
Moss patches are set to a 1 in 20 chance per chunk. Azalea trees are set to 1 in 1024 per chunk, which the author describes as about one tree per 32-chunk area. Because of added chances in flower forests, azalea trees become much more common there, with a 1 in 64 chance per chunk, so at least one is likely in a flower forest. The mod is server-side only: the server needs it, and players join without installing it.
Key features
Moss-only bonemeal results
Bonemealed moss yields grass, tall grass and moss carpets instead of azaleas, which the base game spawns everywhere.
Moss patch generation
Moss patches generate randomly through the world at a 1 in 20 chance per chunk.
Azalea tree generation
Azalea trees spawn at a 1 in 1024 chance per chunk and gain a 1 in 64 chance in flower forests.
Azalea drops kept
Azaleas remain obtainable, and azalea tree leaves drop saplings when they decay.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Keeping vanilla moss mechanics
Servers that want bonemeal on moss to behave differently from the base game can run the mod to limit what it spawns.
Who it’s for: Server owners who want moss and azalea generation to follow a different pattern than the base game, and modders who want to adjust world generation chances in the source code.
How it compares
CobbleMoss is also server-side only, released under the Apache License 2.0, and is published for 1.21.3 – 26.2. Mossy Biomes is a client and server mod for 26.2 under the MIT License, so it covers a different game version and a different environment from Better Moss IMO, which is all rights reserved.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Better Moss IMO | Fabric | 1.17.1 | Server-side only | 2021-09-19 |
| CobbleMoss | Fabric | 1.21.3 – 26.2 | Server-side only | 2026-08-09 |
| Mossy Biomes | Fabric | 26.2 | Client and server | 2026-07-14 |
Questions
Does Better Moss IMO need Fabric API?
Do players need to install Better Moss IMO?
Can the world generation chances be changed?
In the catalog
Better Moss IMO is one of 8,515 World generation mods on ModsFinder, and one of 4,027 World generation mods for Fabric. 4,181 mods support Minecraft 1.17.1.
More from firenh
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What the author says
This is a feature I really want implemented into the base game. Right now, if moss blocks generate in any other part of the world other than Lush Caves through a world gen mod, it just seems really odd to have azaleas generate with it. Or, if they don't generate with azaleas, they will still spawn them with…
Official listing
- Modrinth page
- modrinth.com/mod/bettermossimo
- Owner
- firenh
- Published
- 2021-09-19
- Updated on Modrinth
- 2021-09-19
- Facts verified
- 2026-10-15