diff --git a/README.md b/README.md
index 444d6fb..b5ab5d5 100644
--- a/README.md
+++ b/README.md
@@ -63,6 +63,7 @@ Please report bugs on the issues page on GitHub.
     - Hunger
     - Fly
     - Daylight cycle
+    - Leaves decay
     - You have an idea what to add? Feel free to open an issue.
 - **DEFAULT VALUES** Set default values for worlds without settings
 - **SOPHISTICATED** Easy to use, fast and mostly bug-free.
@@ -83,15 +84,15 @@ Worlds is really easy to use. Here is the command syntax:
 /worlds set legacy
 /worlds set permission <permissionstring>
 /worlds set gamemode <survival|creative|adventure|spectator>
-/worlds set <build|pvp|damage|interact|explode|drop|hunger|fly|daylightcycle> <true|false>
+/worlds set <build|pvp|damage|interact|explode|drop|hunger|fly|daylightcycle|leavesdecay> <true|false>
 /worlds unset
-/worlds unset <permission|gamemode|build|pvp|damage|interact|explode|drop|hunger|fly|daylightcycle>
+/worlds unset <permission|gamemode|build|pvp|damage|interact|explode|drop|hunger|fly|daylightcycle|leavesdecay>
 /worlds defaults
 /worlds defaults legacy
 /worlds defaults set permission <permissionstring>
 /worlds defaults set gamemode <survival|creative|adventure|spectator>
-/worlds defaults set <build|pvp|damage|interact|explode|drop|hunger|fly|daylightcycle> <true|false>
-/worlds defaults unset <permission|gamemode|build|pvp|damage|interact|explode|drop|hunger|fly|daylightcycle>
+/worlds defaults set <build|pvp|damage|interact|explode|drop|hunger|fly|daylightcycle|leavesdecay> <true|false>
+/worlds defaults unset <permission|gamemode|build|pvp|damage|interact|explode|drop|hunger|fly|daylightcycle|leavesdecay>
 ```
 
 For a full list of commands, their usage and a description what they are for, take a look at the [wiki](https://plugins.surva.net/docs/Worlds#commands).
diff --git a/plugin.yml b/plugin.yml
index a6b3fa2..ff8c2f1 100644
--- a/plugin.yml
+++ b/plugin.yml
@@ -10,7 +10,7 @@ website: https://plugins.surva.net/#worlds
 commands:
   worlds:
     description: "Worlds plugin main command"
-    usage: "/worlds list\n/worlds create <worldname> [type]\n/worlds <remove|load|unload|tp> <worldname>\n/worlds <copy|rename> <from> <to>\n/worlds set\n/worlds set legacy\n/worlds set permission <permissionstring>\n/worlds set gamemode <survival|creative|adventure|spectator>\n/worlds set <build|pvp|damage|interact|explode|drop|hunger|fly|daylightcycle> <true|false>\n/worlds unset\n/worlds unset <permission|gamemode|build|pvp|damage|interact|explode|drop|hunger|fly|daylightcycle>\n/worlds defaults\n/worlds defaults legacy\n/worlds defaults set permission <permissionstring>\n/worlds defaults set gamemode <survival|creative|adventure|spectator>\n/worlds defaults set <build|pvp|damage|interact|explode|drop|hunger|fly|daylightcycle> <true|false>\n/worlds defaults unset <permission|gamemode|build|pvp|damage|interact|explode|drop|hunger|fly|daylightcycle>"
+    usage: "/worlds list\n/worlds create <worldname> [type]\n/worlds <remove|load|unload|tp> <worldname>\n/worlds <copy|rename> <from> <to>\n/worlds set\n/worlds set legacy\n/worlds set permission <permissionstring>\n/worlds set gamemode <survival|creative|adventure|spectator>\n/worlds set <build|pvp|damage|interact|explode|drop|hunger|fly|daylightcycle|leavesdecay> <true|false>\n/worlds unset\n/worlds unset <permission|gamemode|build|pvp|damage|interact|explode|drop|hunger|fly|daylightcycle|leavesdecay>\n/worlds defaults\n/worlds defaults legacy\n/worlds defaults set permission <permissionstring>\n/worlds defaults set gamemode <survival|creative|adventure|spectator>\n/worlds defaults set <build|pvp|damage|interact|explode|drop|hunger|fly|daylightcycle|leavesdecay> <true|false>\n/worlds defaults unset <permission|gamemode|build|pvp|damage|interact|explode|drop|hunger|fly|daylightcycle|leavesdecay>"
     aliases: ["ws"]
 permissions:
   worlds.list:
diff --git a/resources/languages/de.yml b/resources/languages/de.yml
index 2496dd0..60d50d6 100644
--- a/resources/languages/de.yml
+++ b/resources/languages/de.yml
@@ -110,6 +110,7 @@ forms:
       hunger: "Hunger"
       fly: "Fliegen"
       daylightcycle: "Tag-Nacht-Zyklus"
+      leavesdecay: "Blätter verwesen"
     options:
       notset: "§7nicht eingestellt (kein Wert)"
       true: "§aaktiviert"
diff --git a/resources/languages/en.yml b/resources/languages/en.yml
index bbf34c8..79dae28 100644
--- a/resources/languages/en.yml
+++ b/resources/languages/en.yml
@@ -110,6 +110,7 @@ forms:
       hunger: "Hunger"
       fly: "Flying"
       daylightcycle: "Daylight cycling"
+      leavesdecay: "Leaves decay"
     options:
       notset: "§7not set (null)"
       true: "§aenabled"
diff --git a/src/surva/worlds/EventListener.php b/src/surva/worlds/EventListener.php
index 7bae484..295dec9 100644
--- a/src/surva/worlds/EventListener.php
+++ b/src/surva/worlds/EventListener.php
@@ -10,6 +10,7 @@
 use pocketmine\entity\object\Painting;
 use pocketmine\event\block\BlockBreakEvent;
 use pocketmine\event\block\BlockPlaceEvent;
+use pocketmine\event\block\LeavesDecayEvent;
 use pocketmine\event\entity\EntityDamageByEntityEvent;
 use pocketmine\event\entity\EntityDamageEvent;
 use pocketmine\event\entity\EntityLevelChangeEvent;
@@ -305,6 +306,20 @@ public function onPlayerInteract(PlayerInteractEvent $event): void
         }
     }
 
+    /**
+     * @param  \pocketmine\event\block\LeavesDecayEvent  $event
+     */
+    public function onLeavesDecay(LeavesDecayEvent $event): void
+    {
+        $foldername = $event->getBlock()->getLevel()->getFolderName();
+
+        if ($world = $this->getWorlds()->getWorldByName($foldername)) {
+            if ($world->getLeavesDecay() === false) {
+                $event->setCancelled();
+            }
+        }
+    }
+
     /**
      * @return Worlds
      */
diff --git a/src/surva/worlds/commands/DefaultsCommand.php b/src/surva/worlds/commands/DefaultsCommand.php
index 7372053..b6b7ad6 100644
--- a/src/surva/worlds/commands/DefaultsCommand.php
+++ b/src/surva/worlds/commands/DefaultsCommand.php
@@ -52,6 +52,7 @@ public function do(CommandSender $sender, array $args): bool
                       "hunger"        => $this->formatBool($defaults->getHunger()),
                       "fly"           => $this->formatBool($defaults->getFly()),
                       "daylightcycle" => $this->formatBool($defaults->getDaylightCycle()),
+                      "leavesdecay" => $this->formatBool($defaults->getLeavesDecay()),
                     ]
                   )
                 );
diff --git a/src/surva/worlds/commands/SetCommand.php b/src/surva/worlds/commands/SetCommand.php
index e37ad4c..cbf2ec7 100644
--- a/src/surva/worlds/commands/SetCommand.php
+++ b/src/surva/worlds/commands/SetCommand.php
@@ -58,6 +58,7 @@ public function do(CommandSender $sender, array $args): bool
                   "hunger"        => $this->formatBool($world->getHunger()),
                   "fly"           => $this->formatBool($world->getFly()),
                   "daylightcycle" => $this->formatBool($world->getDaylightCycle()),
+                  "leavesdecay" => $this->formatBool($world->getLeavesDecay()),
                 ]
               )
             );
diff --git a/src/surva/worlds/form/DefaultSettingsForm.php b/src/surva/worlds/form/DefaultSettingsForm.php
index c59e349..6a5740a 100644
--- a/src/surva/worlds/form/DefaultSettingsForm.php
+++ b/src/surva/worlds/form/DefaultSettingsForm.php
@@ -121,6 +121,16 @@ public function __construct(Worlds $wsInstance, Defaults $defaults)
             ],
             "default" => $this->convBool($defaults->getDaylightCycle()),
           ],
+          [
+            "type"    => "dropdown",
+            "text"    => $this->getWorlds()->getMessage("forms.world.params.leavesdecay"),
+            "options" => [
+              $this->getWorlds()->getMessage("forms.world.options.notset"),
+              $this->getWorlds()->getMessage("forms.world.options.false"),
+              $this->getWorlds()->getMessage("forms.world.options.true"),
+            ],
+            "default" => $this->convBool($defaults->getLeavesDecay()),
+          ],
         ];
     }
 
@@ -136,7 +146,7 @@ public function handleResponse(Player $player, $data): void
             return;
         }
 
-        if (count($data) !== 10) {
+        if (count($data) !== 11) {
             return;
         }
 
@@ -150,6 +160,7 @@ public function handleResponse(Player $player, $data): void
         $this->procBool("hunger", $data[7]);
         $this->procBool("fly", $data[8]);
         $this->procBool("daylightcycle", $data[9]);
+        $this->procBool("leavesdecay", $data[10]);
 
         $player->sendMessage($this->getWorlds()->getMessage("forms.saved"));
     }
diff --git a/src/surva/worlds/form/WorldSettingsForm.php b/src/surva/worlds/form/WorldSettingsForm.php
index 6ea8a95..7b55ff2 100644
--- a/src/surva/worlds/form/WorldSettingsForm.php
+++ b/src/surva/worlds/form/WorldSettingsForm.php
@@ -126,6 +126,16 @@ public function __construct(Worlds $wsInstance, string $worldName, World $world)
             ],
             "default" => $this->convBool($world->getDaylightCycle()),
           ],
+          [
+            "type"    => "dropdown",
+            "text"    => $this->getWorlds()->getMessage("forms.world.params.leavesdecay"),
+            "options" => [
+              $this->getWorlds()->getMessage("forms.world.options.notset"),
+              $this->getWorlds()->getMessage("forms.world.options.false"),
+              $this->getWorlds()->getMessage("forms.world.options.true"),
+            ],
+            "default" => $this->convBool($world->getLeavesDecay()),
+          ],
         ];
     }
 
@@ -141,7 +151,7 @@ public function handleResponse(Player $player, $data): void
             return;
         }
 
-        if (count($data) !== 11) {
+        if (count($data) !== 12) {
             return;
         }
 
@@ -161,6 +171,7 @@ public function handleResponse(Player $player, $data): void
         $this->procBool("hunger", $data[8]);
         $this->procBool("fly", $data[9]);
         $this->procBool("daylightcycle", $data[10]);
+        $this->procBool("leavesdecay", $data[11]);
 
         $player->sendMessage($this->getWorlds()->getMessage("forms.saved"));
     }
diff --git a/src/surva/worlds/logic/WorldActions.php b/src/surva/worlds/logic/WorldActions.php
index f30e300..85a74c7 100644
--- a/src/surva/worlds/logic/WorldActions.php
+++ b/src/surva/worlds/logic/WorldActions.php
@@ -52,6 +52,7 @@ public static function isValidFlag(string $flagName): bool
             "hunger",
             "fly",
             "daylightcycle",
+            "leavesdecay",
           ]
         );
     }
diff --git a/src/surva/worlds/types/World.php b/src/surva/worlds/types/World.php
index 33e6616..83e1bff 100644
--- a/src/surva/worlds/types/World.php
+++ b/src/surva/worlds/types/World.php
@@ -50,6 +50,9 @@ class World
     /* @var bool|null */
     protected $daylightcycle;
 
+    /* @var bool|null */
+    protected $leavesdecay;
+
     public function __construct(Worlds $worlds, Config $config)
     {
         $this->worlds = $worlds;
@@ -74,6 +77,7 @@ public function loadItems(): void
         $this->loadValue("hunger");
         $this->loadValue("fly");
         $this->loadValue("daylightcycle");
+        $this->loadValue("leavesdecay");
     }
 
     /**
@@ -135,6 +139,14 @@ public function removeValue(string $name): void
         $this->loadItems();
     }
 
+    /**
+     * @return bool|null
+     */
+    public function getLeavesDecay(): ?bool
+    {
+        return $this->leavesdecay;
+    }
+
     /**
      * @return bool|null
      */