diff --git a/worldguard-bukkit/src/main/java/com/sk89q/worldguard/bukkit/BukkitWorldConfiguration.java b/worldguard-bukkit/src/main/java/com/sk89q/worldguard/bukkit/BukkitWorldConfiguration.java
index 708618ef..2c214980 100644
--- a/worldguard-bukkit/src/main/java/com/sk89q/worldguard/bukkit/BukkitWorldConfiguration.java
+++ b/worldguard-bukkit/src/main/java/com/sk89q/worldguard/bukkit/BukkitWorldConfiguration.java
@@ -263,6 +263,7 @@ public void loadConfiguration() {
         disableGrassGrowth = getBoolean("dynamics.disable-grass-growth", false);
         disableMyceliumSpread = getBoolean("dynamics.disable-mycelium-spread", false);
         disableVineGrowth = getBoolean("dynamics.disable-vine-growth", false);
+        disableRockGrowth = getBoolean("dynamics.disable-rock-growth", false);
         disableCropGrowth = getBoolean("dynamics.disable-crop-growth", false);
         disableSoilDehydration = getBoolean("dynamics.disable-soil-dehydration", false);
         disableCoralBlockFade = getBoolean("dynamics.disable-coral-block-fade", false);
diff --git a/worldguard-bukkit/src/main/java/com/sk89q/worldguard/bukkit/listener/WorldGuardBlockListener.java b/worldguard-bukkit/src/main/java/com/sk89q/worldguard/bukkit/listener/WorldGuardBlockListener.java
index eabe7646..fe12ba55 100644
--- a/worldguard-bukkit/src/main/java/com/sk89q/worldguard/bukkit/listener/WorldGuardBlockListener.java
+++ b/worldguard-bukkit/src/main/java/com/sk89q/worldguard/bukkit/listener/WorldGuardBlockListener.java
@@ -588,6 +588,19 @@ public void onBlockSpread(BlockSpreadEvent event) {
             }
         }
 
+        if (newType == Material.BUDDING_AMETHYST || newType == Material.POINTED_DRIPSTONE) {
+            if (wcfg.disableRockGrowth) {
+                event.setCancelled(true);
+                return;
+            }
+
+            if (wcfg.useRegions && !StateFlag.test(WorldGuard.getInstance().getPlatform().getRegionContainer().createQuery()
+                    .queryState(BukkitAdapter.adapt(event.getBlock().getLocation()), (RegionAssociable) null, Flags.ROCK_GROWTH))) {
+                event.setCancelled(true);
+                return;
+            }
+        }
+
         handleGrow(event, event.getBlock().getLocation(), newType);
     }
 
diff --git a/worldguard-core/src/main/java/com/sk89q/worldguard/config/WorldConfiguration.java b/worldguard-core/src/main/java/com/sk89q/worldguard/config/WorldConfiguration.java
index b6fbe2ce..52e0cab9 100644
--- a/worldguard-core/src/main/java/com/sk89q/worldguard/config/WorldConfiguration.java
+++ b/worldguard-core/src/main/java/com/sk89q/worldguard/config/WorldConfiguration.java
@@ -157,6 +157,7 @@ public abstract class WorldConfiguration {
     public boolean disableGrassGrowth;
     public boolean disableMyceliumSpread;
     public boolean disableVineGrowth;
+    public boolean disableRockGrowth;
     public boolean disableCropGrowth;
     public boolean disableEndermanGriefing;
     public boolean disableSnowmanTrails;
diff --git a/worldguard-core/src/main/java/com/sk89q/worldguard/protection/flags/Flags.java b/worldguard-core/src/main/java/com/sk89q/worldguard/protection/flags/Flags.java
index c3edeaec..218637b5 100644
--- a/worldguard-core/src/main/java/com/sk89q/worldguard/protection/flags/Flags.java
+++ b/worldguard-core/src/main/java/com/sk89q/worldguard/protection/flags/Flags.java
@@ -120,6 +120,7 @@ public final class Flags {
     public static final StateFlag GRASS_SPREAD = register(new StateFlag("grass-growth", true));
     public static final StateFlag MYCELIUM_SPREAD = register(new StateFlag("mycelium-spread", true));
     public static final StateFlag VINE_GROWTH = register(new StateFlag("vine-growth", true));
+    public static final StateFlag ROCK_GROWTH = register(new StateFlag("rock-growth", true));
     public static final StateFlag CROP_GROWTH = register(new StateFlag("crop-growth", true));
     public static final StateFlag SOIL_DRY = register(new StateFlag("soil-dry", true));
     public static final StateFlag CORAL_FADE = register(new StateFlag("coral-fade", true));