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Ever played with a mod, such as Terralith or William Wythers' Overhauled Overworld, that add custom trees to world gen that you can't grow?
With Treeplacer you can create a custom datapack that allows you to change saplings to grow into whatever tree your heart desires!
Features include:
- Change a sapling's tree for all biomes,
- Change a sapling's tree based on biome,
- Change a sapling's tree based on the block it is grown on.
- Define a 2x2 tree that uses the rules above on all saplings, even mushrooms!
- Plus many advanced rules!
Example Sapling Override File:
Spoiler
{
"replace": false,
"values": {
"treeplacer:all_biomes":[
{
"feature":"minecraft:birch",
"weird":true
},
{
"feature":"minecraft:fancy_oak",
"weird":false
}
],
"minecraft:plains":[
{
"feature":"minecraft:spruce",
"weight":1,
"y":{
"max":70
},
"weird":false,
"block":[{"id":"minecraft:podzol"},{"id":"minecraft:coarse_dirt"}]
},
{
"feature":"minecraft:jungle_tree",
"weight":2,
"block":[{"id":"minecraft:podzol"}]
}
],
"minecraft:dirt":"minecraft:acacia"
}
}To get started take a look at the wiki on github. Create Sapling Override JSONS online here!
Add Ons:
All Versions
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[2.2.0] Treeplacer 2.2.0
by OutrightWings on Oct 18, 2026
Download
New Features
Information
Thank you for the support and let me know if there are any issues or suggestions! <3
- Biome tag support (thank you johnhoffm for the PR)
- Block tag support
- Plant placement overrides. Allowing saplings to have unique blocks they can be placed on from each other. Check the wiki for information.
Information
- This will be the last update for 1.21.5 and 1.21.10 this many versions has been a nightmare for me to support. I am a grad student and solo dev.
Thank you for the support and let me know if there are any issues or suggestions! <3
[2.2.0] Treeplacer 2.2.0
by OutrightWings on Oct 18, 2026
Download
New Features
Information
Thank you for the support and let me know if there are any issues or suggestions! <3
- Biome tag support (thank you johnhoffm for the PR)
- Block tag support
- Plant placement overrides. Allowing saplings to have unique blocks they can be placed on from each other. Check the wiki for information.
Information
- This will be the last update for 1.21.5 and 1.21.10 this many versions has been a nightmare for me to support. I am a grad student and solo dev.
Thank you for the support and let me know if there are any issues or suggestions! <3
[2.2.0] Treeplacer 2.2.0
by OutrightWings on Oct 18, 2026
Download
New Features
Information
Thank you for the support and let me know if there are any issues or suggestions! <3
- Biome tag support (thank you johnhoffm for the PR)
- Block tag support
- Plant placement overrides. Allowing saplings to have unique blocks they can be placed on from each other. Check the wiki for information.
Information
- This will be the last update for 1.21.5 and 1.21.10 this many versions has been a nightmare for me to support. I am a grad student and solo dev.
Thank you for the support and let me know if there are any issues or suggestions! <3
[2.2.0] Treeplacer 2.2.0
by OutrightWings on Oct 18, 2026
Download
New Features
Information
Thank you for the support and let me know if there are any issues or suggestions! <3
- Biome tag support (thank you johnhoffm for the PR)
- Block tag support
- Plant placement overrides. Allowing saplings to have unique blocks they can be placed on from each other. Check the wiki for information.
Information
- This will be the last update for 1.21.5 and 1.21.10 this many versions has been a nightmare for me to support. I am a grad student and solo dev.
Thank you for the support and let me know if there are any issues or suggestions! <3
[2.2.0] Treeplacer 2.2.0
by OutrightWings on Oct 18, 2026
Download
New Features
Information
Thank you for the support and let me know if there are any issues or suggestions! <3
- Biome tag support (thank you johnhoffm for the PR)
- Block tag support
- Plant placement overrides. Allowing saplings to have unique blocks they can be placed on from each other. Check the wiki for information.
Information
- This will be the last update for 1.21.5 and 1.21.10 this many versions has been a nightmare for me to support. I am a grad student and solo dev.
Thank you for the support and let me know if there are any issues or suggestions! <3
[2.2.0] Treeplacer 2.2.0
by OutrightWings on Oct 18, 2026
Download
New Features
Information
Thank you for the support and let me know if there are any issues or suggestions! <3
- Biome tag support (thank you johnhoffm for the PR)
- Block tag support
- Plant placement overrides. Allowing saplings to have unique blocks they can be placed on from each other. Check the wiki for information.
Information
- This will be the last update for 1.21.5 and 1.21.10 this many versions has been a nightmare for me to support. I am a grad student and solo dev.
Thank you for the support and let me know if there are any issues or suggestions! <3
[2.2.0] Treeplacer 2.2.0
by OutrightWings on Oct 18, 2026
Download
New Features
Information
Thank you for the support and let me know if there are any issues or suggestions! <3
- Biome tag support (thank you johnhoffm for the PR)
- Block tag support
- Plant placement overrides. Allowing saplings to have unique blocks they can be placed on from each other. Check the wiki for information.
Information
- This will be the last update for 1.21.5 and 1.21.10 this many versions has been a nightmare for me to support. I am a grad student and solo dev.
Thank you for the support and let me know if there are any issues or suggestions! <3
[2.2.0] Treeplacer 2.2.0
by OutrightWings on Oct 18, 2026
Download
New Features
Information
Thank you for the support and let me know if there are any issues or suggestions! <3
- Biome tag support (thank you johnhoffm for the PR)
- Block tag support
- Plant placement overrides. Allowing saplings to have unique blocks they can be placed on from each other. Check the wiki for information.
Information
- This will be the last update for 1.21.5 and 1.21.10 this many versions has been a nightmare for me to support. I am a grad student and solo dev.
Thank you for the support and let me know if there are any issues or suggestions! <3
[2.2.0] Treeplacer 2.2.0
by OutrightWings on Oct 18, 2026
Download
New Features
Information
Thank you for the support and let me know if there are any issues or suggestions! <3
- Biome tag support (thank you johnhoffm for the PR)
- Block tag support
- Plant placement overrides. Allowing saplings to have unique blocks they can be placed on from each other. Check the wiki for information.
Information
- This will be the last update for 1.21.5 and 1.21.10 this many versions has been a nightmare for me to support. I am a grad student and solo dev.
Thank you for the support and let me know if there are any issues or suggestions! <3
[2.2.0] Treeplacer 2.2.0
by OutrightWings on Oct 18, 2026
Download
New Features
Information
Thank you for the support and let me know if there are any issues or suggestions! <3
- Biome tag support (thank you johnhoffm for the PR)
- Block tag support
- Plant placement overrides. Allowing saplings to have unique blocks they can be placed on from each other. Check the wiki for information.
Information
- This will be the last update for 1.21.5 and 1.21.10 this many versions has been a nightmare for me to support. I am a grad student and solo dev.
Thank you for the support and let me know if there are any issues or suggestions! <3
[2.1.0] Treeplacer 2.1.0
by OutrightWings on Oct 18, 2026
Download
Fix Fabric mod meta to allow it to launch in all the correct versions.
[2.1.0] Treeplacer 2.1.0
by OutrightWings on Oct 18, 2026
Download
Fix Fabric mod meta to allow it to launch in all the correct versions.
[2.1.0] Treeplacer 2.1.0
by OutrightWings on Oct 18, 2026
Download
New Features:
Check the wiki for more detailed information.
- X Y Z bounds - define where in the world the rule applies positionally.
- Weirdness T/F - vanilla weirdness toggle. Positive w is true. Useful for basic regions as vanilla weirdness flips across rivers
- block list subrule - allows defining what blocks within a biome grow which sapling instead of just global block rules.
Check the wiki for more detailed information.
[2.1.0] Treeplacer 2.1.0
by OutrightWings on Oct 18, 2026
Download
New Features:
Check the wiki for more detailed information.
- X Y Z bounds - define where in the world the rule applies positionally.
- Weirdness T/F - vanilla weirdness toggle. Positive w is true. Useful for basic regions as vanilla weirdness flips across rivers
- block list subrule - allows defining what blocks within a biome grow which sapling instead of just global block rules.
Check the wiki for more detailed information.
[2.1.0] Treeplacer 2.1.0
by OutrightWings on Oct 18, 2026
Download
New Features:
Check the wiki for more detailed information.
- X Y Z bounds - define where in the world the rule applies positionally.
- Weirdness T/F - vanilla weirdness toggle. Positive w is true. Useful for basic regions as vanilla weirdness flips across rivers
- block list subrule - allows defining what blocks within a biome grow which sapling instead of just global block rules.
Check the wiki for more detailed information.
[2.1.0] Treeplacer 2.1.0
by OutrightWings on Oct 18, 2026
Download
New Features:
Check the wiki for more detailed information.
- X Y Z bounds - define where in the world the rule applies positionally.
- Weirdness T/F - vanilla weirdness toggle. Positive w is true. Useful for basic regions as vanilla weirdness flips across rivers
- block list subrule - allows defining what blocks within a biome grow which sapling instead of just global block rules.
Check the wiki for more detailed information.
[2.1.0] Treeplacer 2.1.0
by OutrightWings on Oct 18, 2026
Download
New Features:
Check the wiki for more detailed information.
- X Y Z bounds - define where in the world the rule applies positionally.
- Weirdness T/F - vanilla weirdness toggle. Positive w is true. Useful for basic regions as vanilla weirdness flips across rivers
- block list subrule - allows defining what blocks within a biome grow which sapling instead of just global block rules.
Check the wiki for more detailed information.
[2.1.0] Treeplacer 2.1.0
by OutrightWings on Oct 18, 2026
Download
New Features:
Check the wiki for more detailed information.
- X Y Z bounds - define where in the world the rule applies positionally.
- Weirdness T/F - vanilla weirdness toggle. Positive w is true. Useful for basic regions as vanilla weirdness flips across rivers
- block list subrule - allows defining what blocks within a biome grow which sapling instead of just global block rules.
Check the wiki for more detailed information.
[2.1.0] Treeplacer 2.1.0
by OutrightWings on Oct 18, 2026
Download
New Features:
Check the wiki for more detailed information.
- X Y Z bounds - define where in the world the rule applies positionally.
- Weirdness T/F - vanilla weirdness toggle. Positive w is true. Useful for basic regions as vanilla weirdness flips across rivers
- block list subrule - allows defining what blocks within a biome grow which sapling instead of just global block rules.
Check the wiki for more detailed information.
[2.1.0] Treeplacer 2.1.0
by OutrightWings on Oct 18, 2026
Download
New Features:
Check the wiki for more detailed information.
- X Y Z bounds - define where in the world the rule applies positionally.
- Weirdness T/F - vanilla weirdness toggle. Positive w is true. Useful for basic regions as vanilla weirdness flips across rivers
- block list subrule - allows defining what blocks within a biome grow which sapling instead of just global block rules.
Check the wiki for more detailed information.
[2.1.0] Treeplacer 2.1.0
by OutrightWings on Oct 18, 2026
Download
New Features:
Check the wiki for more detailed information.
- X Y Z bounds - define where in the world the rule applies positionally.
- Weirdness T/F - vanilla weirdness toggle. Positive w is true. Useful for basic regions as vanilla weirdness flips across rivers
- block list subrule - allows defining what blocks within a biome grow which sapling instead of just global block rules.
Check the wiki for more detailed information.
[2.1.0] Treeplacer 2.1.0
by OutrightWings on Oct 18, 2026
Download
New Features:
Check the wiki for more detailed information.
- X Y Z bounds - define where in the world the rule applies positionally.
- Weirdness T/F - vanilla weirdness toggle. Positive w is true. Useful for basic regions as vanilla weirdness flips across rivers
- block list subrule - allows defining what blocks within a biome grow which sapling instead of just global block rules.
Check the wiki for more detailed information.
[2.0.2] Treeplacer 2.0.2
by OutrightWings on Oct 18, 2026
Download
Dedicated Server fix that caused tree replacements to not fire
1.21.1+ added /list_treeplacements command
1.21.1+ added /list_treeplacements command
[2.0.2] Treeplacer 2.0.2
by OutrightWings on Oct 18, 2026
Download
Dedicated Server fix that caused tree replacements to not fire
1.21.1+ added /list_treeplacements command
1.21.1+ added /list_treeplacements command
[2.0.2] Treeplacer 2.0.2
by OutrightWings on Oct 18, 2026
Download
Dedicated Server fix that caused tree replacements to not fire
1.21.1+ added /list_treeplacements command
1.21.1+ added /list_treeplacements command
[2.0.2] Treeplacer 2.0.2
by OutrightWings on Oct 18, 2026
Download
Dedicated Server fix that caused tree replacements to not fire
1.21.1+ added /list_treeplacements command
1.21.1+ added /list_treeplacements command
[2.0.2] Treeplacer 2.0.2
by OutrightWings on Oct 18, 2026
Download
Dedicated Server fix that caused tree replacements to not fire
1.21.1+ added /list_treeplacements command
1.21.1+ added /list_treeplacements command
[2.0.2] Treeplacer 2.0.2
by OutrightWings on Oct 18, 2026
Download
Dedicated Server fix that caused tree replacements to not fire
1.21.1+ added /list_treeplacements command
1.21.1+ added /list_treeplacements command
[2.0.2] Treeplacer 2.0.2
by OutrightWings on Oct 18, 2026
Download
Dedicated Server fix that caused tree replacements to not fire
1.21.1+ added /list_treeplacements command
1.21.1+ added /list_treeplacements command
[2.0.2] Treeplacer 2.0.2
by OutrightWings on Oct 18, 2026
Download
Dedicated Server fix that caused tree replacements to not fire
1.21.1+ added /list_treeplacements command
1.21.1+ added /list_treeplacements command
