Old Growth Birch Forest
| Structures |  Abandoned Camp Trail Ruins
|
|---|---|
| Features |  Birch Super Birch Birch with Bee Nest Super Birch with Bee Nest
|
| Blocks |  Grass Block |
|
Climate | |
| Temperature | 0.6 |
| Downfall | 0.6 |
| Precipitation | Yes |
|
Colors | |
| Grass color | #88BB67 |
| Foliage color | #6BA941 |
| Dry foliage color | #A37246 |
| Water color | #3F76E4[JE only] #44AFF5[BE only] |
|
Vibrant Visuals | |
| Atmospherics | Default |
| Lighting | Default |
| Volumetric fog | Default |
| Color grading | Default |
An old growth birch forest or birch forest mutated is a variant of the birch forest, notable for its trees, which are taller than those found in the normal birch forest.
Generation
Like regular birch forests, old growth birch forests generate in temperate regions with moderately high humidities. However, old growth birch forests usually generate where weirdness is positive, so a river will often separate it from a regular birch forest, though they may also share a border directly. Old growth birch forests frequently border forests, dark forests, taigas, and sparse jungles.
Lush caves may generate beneath old growth birch forests due to their relatively high humidity.
Description
The old growth birch forest features birch trees, half of which are significantly taller than normal with trunks up to 14 blocks tall. These tall birch trees are exclusive to the old growth birch forest and cannot be grown with a normal birch sapling. Bee nests can be found on 0.2%[JE only] or 0.035%[BE only] of the trees. Fallen trees can also be up to 14 blocks long.
Flower patches that naturally generate in the biome include rose bushes, lilacs, peonies, and lilies of the valley, as well as wildflowers covering the ground. Small patches of up to five bushes are also present.
Additionally, trail ruins may generate here as opposed to regular birch forests. Abandoned camps sometimes generate in old growth birch forests.
Mobs
The following mobs naturally spawn here:
| Mob | Spawn weight | Group size |
|---|---|---|
| Monster category | ||
 Creeper | 100⁄515 | 4 |
 Skeleton | 100⁄515 | 4 |
 Slime[note 1] | 100⁄515 | 4 |
 Spider | 100⁄515 | 4 |
 Zombie | 95⁄515 | 4 |
 Enderman | 10⁄515 | 1–4 |
 Witch | 5⁄515 | 1 |
 Zombie Villager | 5⁄515 | 1 |
| Creature category | ||
 Sheep | 12⁄40 | 4 |
 Chicken | 10⁄40 | 4 |
 Pig | 10⁄40 | 4 |
 Cow | 8⁄40 | 4 |
| Underground water creature category | ||
 Glow Squid | 1 | 4–6 |
| Ambient category | ||
 Bat | 1 | 8 |
- ↑ Spawn attempt succeeds only in slime chunks.
{ "hasNotes": true, "notes": { "Slime": "Spawn attempt succeeds only in slime chunks." }, "1": { "totalWeight": 515, "mobs": [ { "size": "4", "mob": "Creeper", "weight": 100 }, { "size": "4", "mob": "Skeleton", "weight": 100 }, { "note": "Spawn attempt succeeds only in slime chunks.", "mob": "Slime", "weight": 100, "notename": "Slime", "size": "4" }, { "size": "4", "mob": "Spider", "weight": 100 }, { "size": "4", "mob": "Zombie", "weight": 95 }, { "size": "1-4", "mob": "Enderman", "weight": 10 }, { "size": "1", "mob": "Witch", "weight": 5 }, { "size": "1", "mob": "Zombie Villager", "weight": 5 } ], "category": "monster" }, "2": { "totalWeight": 40, "mobs": [ { "size": "4", "mob": "Sheep", "weight": 12 }, { "size": "4", "mob": "Chicken", "weight": 10 }, { "size": "4", "mob": "Pig", "weight": 10 }, { "size": "4", "mob": "Cow", "weight": 8 } ], "category": "creature" }, "3": { "totalWeight": 10, "mobs": [ { "size": "4-6", "mob": "Glow Squid", "weight": 10 } ], "category": "underground" }, "4": { "totalWeight": 10, "mobs": [ { "size": "8", "mob": "Bat", "weight": 10 } ], "category": "ambient" } }
| Mob | Spawn weight | Group size |
|---|---|---|
| Monster category | ||
| Creeper | 100 | 1 |
| Slime[note 1] | 100 | 1 |
| Spider | 100 | 1 |
| Zombie | 95 | 2–4 |
| Skeleton | 80 | 1–2 |
| Enderman | 10 | 1–2 |
| Witch | 5 | 1 |
| Zombie Villager | 5 | 2–4 |
| Creature category | ||
| Sheep | 12 | 2–3 |
| Chicken | 10 | 2–4 |
| Glow Squid | 10 | 2–4 |
| Pig | 10 | 1–3 |
| Cow | 8 | 2–3 |
| Ambient category | ||
| Bat | 1 | 2 |
- ↑ Spawn attempt succeeds only in slime chunks.
{ "hasNotes": true, "notes": { "Slime": "Spawn attempt succeeds only in slime chunks." }, "1": { "totalWeight": 495, "mobs": [ { "size": "1", "mob": "Creeper", "weight": 100 }, { "note": "Spawn attempt succeeds only in slime chunks.", "mob": "Slime", "weight": 100, "notename": "Slime", "size": "1" }, { "size": "1", "mob": "Spider", "weight": 100 }, { "size": "2-4", "mob": "Zombie", "weight": 95 }, { "size": "1-2", "mob": "Skeleton", "weight": 80 }, { "size": "1-2", "mob": "Enderman", "weight": 10 }, { "size": "1", "mob": "Witch", "weight": 5 }, { "size": "2-4", "mob": "Zombie Villager", "weight": 5 } ], "category": "monster" }, "2": { "totalWeight": 50, "mobs": [ { "size": "2-3", "mob": "Sheep", "weight": 12 }, { "size": "2-4", "mob": "Chicken", "weight": 10 }, { "size": "2-4", "mob": "Glow Squid", "weight": 10 }, { "size": "1-3", "mob": "Pig", "weight": 10 }, { "size": "2-3", "mob": "Cow", "weight": 8 } ], "category": "creature" }, "3": { "totalWeight": 10, "mobs": [ { "size": "2", "mob": "Bat", "weight": 10 } ], "category": "ambient" } }
Sounds
Music
These music tracks play while the player is in the old growth birch forest.
| Title | Preview | Java Edition | Bedrock Edition | ||
|---|---|---|---|---|---|
| Weight | Probability | Weight | Probability | ||
| Memories | 2 | 8% | 2 | 8% | |
| Shores | 2 | 8% | 2 | 8% | |
| Aerie | 1 | 4% | 1 | 4% | |
| Broken Clocks | 1 | 4% | 1 | 4% | |
| Bromeliad | 1 | 4% | 1 | 4% | |
| Clark | 1 | 4% | 1 | 4% | |
| Comforting Memories | 1 | 4% | 1 | 4% | |
| Danny | 1 | 4% | 1 | 4% | |
| Dry Hands | 1 | 4% | 1 | 4% | |
| Firebugs | 1 | 4% | 1 | 4% | |
| Floating Dream | 1 | 4% | 1 | 4% | |
| Haggstrom | 1 | 4% | 1 | 4% | |
| Key | 1 | 4% | 1 | 4% | |
| Labyrinthine | 1 | 4% | 1 | 4% | |
| Left to Bloom | 1 | 4% | 1 | 4% | |
| Living Mice | 1 | 4% | 1 | 4% | |
| Mice on Venus | 1 | 4% | 1 | 4% | |
| Minecraft | 1 | 4% | 1 | 4% | |
| One More Day | 1 | 4% | 1 | 4% | |
| Oxygène | 1 | 4% | 1 | 4% | |
| Subwoofer Lullaby | 1 | 4% | 1 | 4% | |
| Sweden | 1 | 4% | 1 | 4% | |
| Wet Hands | 1 | 4% | 1 | 4% | |
Data values
ID
| Name | Identifier | Translation key |
|---|---|---|
 Old Growth Birch Forest | old_growth_birch_forest |
biome |
| Name | Identifier | Numeric ID |
|---|---|---|
| [No displayed name] | birch_forest_mutated | 155 |
Biome definition
Press "show" to display json contents
{
"attributes": {
"minecraft:audio/background_music": {
"default": {
"max_delay": 24000,
"min_delay": 12000,
"sound": "minecraft:music.overworld.forest"
}
},
"minecraft:gameplay/natural_mob_spawns": {
"argument": {
"spawn_costs": {},
"spawns_by_category": {
"ambient": [
{
"type": "minecraft:bat",
"count": 8,
"weight": 10
}
],
"creature": [
{
"type": "minecraft:sheep",
"count": 4,
"weight": 12
},
{
"type": "minecraft:pig",
"count": 4,
"weight": 10
},
{
"type": "minecraft:chicken",
"count": 4,
"weight": 10
},
{
"type": "minecraft:cow",
"count": 4,
"weight": 8
}
],
"monster": [
{
"type": "minecraft:spider",
"count": 4,
"weight": 100
},
{
"type": "minecraft:zombie",
"count": 4,
"weight": 95
},
{
"type": "minecraft:zombie_villager",
"count": 1,
"weight": 5
},
{
"type": "minecraft:skeleton",
"count": 4,
"weight": 100
},
{
"type": "minecraft:creeper",
"count": 4,
"weight": 100
},
{
"type": "minecraft:slime",
"count": 4,
"weight": 100
},
{
"type": "minecraft:enderman",
"count": {
"type": "minecraft:uniform",
"max_inclusive": 4,
"min_inclusive": 1
},
"weight": 10
},
{
"type": "minecraft:witch",
"count": 1,
"weight": 5
}
],
"underground_water_creature": [
{
"type": "minecraft:glow_squid",
"count": {
"type": "minecraft:uniform",
"max_inclusive": 6,
"min_inclusive": 4
},
"weight": 10
}
]
}
},
"modifier": "overlay"
},
"minecraft:visual/sky_color": "#7aa5ff"
},
"carvers": [
"minecraft:cave",
"minecraft:cave_extra_underground",
"minecraft:canyon"
],
"downfall": 0.6,
"effects": {
"water_color": "#3f76e4"
},
"features": [
[],
[
"minecraft:lake_lava_underground",
"minecraft:lake_lava_surface"
],
[
"minecraft:amethyst_geode"
],
[
"minecraft:monster_room",
"minecraft:monster_room_deep"
],
[],
[],
[
"minecraft:ore_dirt",
"minecraft:ore_gravel",
"minecraft:ore_granite_upper",
"minecraft:ore_granite_lower",
"minecraft:ore_diorite_upper",
"minecraft:ore_diorite_lower",
"minecraft:ore_andesite_upper",
"minecraft:ore_andesite_lower",
"minecraft:ore_tuff",
"minecraft:ore_coal_upper",
"minecraft:ore_coal_lower",
"minecraft:ore_iron_upper",
"minecraft:ore_iron_middle",
"minecraft:ore_iron_small",
"minecraft:ore_gold",
"minecraft:ore_gold_lower",
"minecraft:ore_redstone",
"minecraft:ore_redstone_lower",
"minecraft:ore_diamond",
"minecraft:ore_diamond_medium",
"minecraft:ore_diamond_large",
"minecraft:ore_diamond_buried",
"minecraft:ore_lapis",
"minecraft:ore_lapis_buried",
"minecraft:ore_copper",
"minecraft:underwater_magma",
"minecraft:disk_sand",
"minecraft:disk_clay",
"minecraft:disk_gravel"
],
[],
[
"minecraft:spring_water",
"minecraft:spring_lava"
],
[
"minecraft:glow_lichen",
"minecraft:forest_flowers",
"minecraft:wildflowers_birch_forest",
"minecraft:birch_tall",
"minecraft:patch_bush",
"minecraft:flower_default",
"minecraft:patch_grass_forest",
"minecraft:brown_mushroom_normal",
"minecraft:red_mushroom_normal",
"minecraft:patch_pumpkin",
"minecraft:patch_sugar_cane",
"minecraft:patch_firefly_bush_near_water"
],
[
"minecraft:freeze_top_layer"
]
],
"has_precipitation": true,
"temperature": 0.6
}
Achievements
| Icon | Achievement | In-game description | Actual requirements (if different) | Gamerscore earned | Trophy type (PS) | |
|---|---|---|---|---|---|---|
| PS4 | Other | |||||
 |  | Adventuring Time | Discover 17 biomes. | Visit any 17 biomes. Does not have to be in a single world. | 40 | Silver |
Advancements
| Icon | Advancement | In-game description | Actual requirements (if different) |
|---|---|---|---|
  | Adventuring Time | Discover every biome |
|
History
Java Edition
| Java Edition | |||||||
|---|---|---|---|---|---|---|---|
| 1.7.2 | 13w36a | Added birch forest M, along with its variant and many other biomes. | |||||
| 1.9 | 16w02a | Birch forest M no longer generates due to MC-95612. | |||||
| 1.11 | 16w43a | Birch forest M generates once again. | |||||
| 1.13 | 18w16a | "Birch Forest M" has been renamed to "Mutated Birch Forest". | |||||
| pre5 | The ID has been changed from mutated_birch_forest to tall_birch_forest. | ||||||
| 18w19a | "Mutated Birch Forest" has been renamed to "Tall Birch Forest". | ||||||
| 1.18 | Experimental Snapshot 1 | Due to changes to the world generation algorithm, tall birch forests are now much more common. | |||||
| 21w37a | Prior to the removal of numerical biome IDs, this biome's numerical ID was 155. | ||||||
| 21w40a | "Tall Birch Forest" has been renamed to "Old Growth Birch Forest". | ||||||
The ID tall_birch_forest has been changed to old_growth_birch_forest. | |||||||
| 21w44a | Old growth birch forest is now required for the "Adventuring Time" advancement. | ||||||
| 1.20 | 23w12a | Added trail ruins, which can generate in old growth birch forests. | |||||
| 23w17a | "A Familiar Room" can now be played in old growth birch forests. | ||||||
| 1.21.5 | 25w02a | Added wildflowers, which can generate in old growth birch forests. | |||||
| 25w05a | Added bushes, which can generate in old growth birch forests. | ||||||
| 26.3 | snap1 | Added abandoned camps, which can generate in old growth birch forests. | |||||
Bedrock Edition
| Pocket Edition Alpha | |||||||
|---|---|---|---|---|---|---|---|
| v0.11.0 | build 1 | Added Birch Forest M. | |||||
| Bedrock Edition | |||||||
| 1.9.0 | beta 1.9.0.0 | Added lilies of the valley, which can be found in birch forests. | |||||
| 1.16.0 | beta 1.16.0.57 | Bee nests now have a small chance to generate in old growth birch forest biome. | |||||
| 1.19.40 | Preview 1.19.40.20 | The old growth birch forest now has a temperature of 0.6 instead of 0.7, and a downfall value of 0.6 instead of 0.8. | |||||
| Old growth birch forests now uses the same grass color as Java Edition.[1] | |||||||
| ? | ? | Changed the water color from #0A74C4 to the default. | |||||
| 1.21.70 Experiment | Preview 1.21.70.20 | Added wildflowers, which can generate in old growth birch forests. | |||||
| Added bushes, which can generate in old growth birch forests. | |||||||
| 26.40 Experiment | Preview 26.40.27 | Added abandoned camps, which can generate in old growth birch forests. | |||||
| 26.50 | Preview 26.50.22 | All features from the "Drop 3 of 2026" experiment have been fully implemented. | |||||
Legacy Console Edition
| Legacy Console Edition | |||||||
|---|---|---|---|---|---|---|---|
| Xbox 360 | Xbox One | PS3 | PS4 | PS Vita | Wii U | Switch | |
| TU31 | CU19 | 1.22 | 1.22 | 1.22 | Patch 3 | 1.0.1 | Added the birch forest M biome, along with many other biomes. |
Issues
Issues relating to "Old Growth Birch Forest" or "Birch Forest Mutated" are maintained on the bug tracker. Issues should be reported and viewed there.
Gallery
Screenshots
-
Overview of an old growth birch forest -
An abandoned camp in an old growth birch forest -
An old growth birch forest single biome world
Historical screenshots
-
A tall birch forest single biome world before 1.18 -
A tall birch forest with ray tracing
Concept artwork
-
Birch forest concept art
See also
References
- ↑ MCPE-34936 – Tall birch tree, shattered savanna, badlands plateau, and dark forest biomes have wrong grass color – resolved as "Fixed".
