--- ../work/decompile-bb26c12b/net/minecraft/server/BlockNetherWart.java	2014-11-27 08:59:46.549422516 +1100
+++ src/main/java/net/minecraft/server/BlockNetherWart.java	2014-11-27 08:42:10.140850934 +1100
@@ -28,7 +28,8 @@
 
         if (i < 3 && random.nextInt(10) == 0) {
             iblockdata = iblockdata.set(BlockNetherWart.AGE, Integer.valueOf(i + 1));
-            world.setTypeAndData(blockposition, iblockdata, 2);
+            // world.setTypeAndData(blockposition, iblockdata, 2); // CraftBukkit
+            org.bukkit.craftbukkit.event.CraftEventFactory.handleBlockGrowEvent(world, blockposition.getX(), blockposition.getY(), blockposition.getZ(), this, toLegacyData(iblockdata)); // CraftBukkit
         }
 
         super.b(world, blockposition, iblockdata, random);