diff --git a/plugin.yml b/plugin.yml
index a2144697..a0fbbb3a 100644
--- a/plugin.yml
+++ b/plugin.yml
@@ -1,4 +1,4 @@
 name: RealisticBiomes
 main: com.untamedears.realisticbiomes.RealisticBiomes
 load: STARTUP
-version: 0.6.4.1
+version: 0.6.4.3
diff --git a/src/com/untamedears/realisticbiomes/RealisticBiomes.java b/src/com/untamedears/realisticbiomes/RealisticBiomes.java
index 8f750159..1e38871c 100644
--- a/src/com/untamedears/realisticbiomes/RealisticBiomes.java
+++ b/src/com/untamedears/realisticbiomes/RealisticBiomes.java
@@ -400,6 +400,11 @@ public double growAndPersistBlock(Block block, boolean naturalGrowEvent) {
 			return 0.0;
 		}
 		
+		// Only persistent crops should be grown in this manner
+		if (!growthConfig.isPersistent()) {
+			return 0.0;
+		}
+		
 		RealisticBiomes.doLog(Level.FINER, "Realisticbiomes.growAndPersistBlock(): plantManager.get() returned: " + plant + " for coords: " + blockCoords);
 		
 		if (plant == null) {
@@ -441,16 +446,22 @@ public GrowthConfig getGrowthConfig(TreeType species) {
 		return materialGrowth.get(treeTypeMap.get(species));
 	}
 	
-	public GrowthConfig getGrowthConfig(Block block) {
-		Material m = block.getType();
+	public GrowthConfig getGrowthConfig(Material m) {
 		return materialGrowth.get(m);
 	}
 	
-	public boolean hasGrowthConfig(Block block) {
-		Material m = block.getType();
+	public GrowthConfig getGrowthConfig(Block b) {
+		return materialGrowth.get(b.getType());
+	}
+	
+	public boolean hasGrowthConfig(Material m) {
 		return materialGrowth.containsKey(m);
 	}
 	
+	public boolean hasGrowthConfig(Block b) {
+		return materialGrowth.containsKey(b.getType());
+	}
+	
 	public boolean hasGrowthConfig(TreeType species) {
 		return materialGrowth.containsKey(treeTypeMap.get(species));
 	}
diff --git a/src/com/untamedears/realisticbiomes/listener/GrowListener.java b/src/com/untamedears/realisticbiomes/listener/GrowListener.java
index e83a71cd..bdf78121 100644
--- a/src/com/untamedears/realisticbiomes/listener/GrowListener.java
+++ b/src/com/untamedears/realisticbiomes/listener/GrowListener.java
@@ -49,6 +49,7 @@ public GrowListener(RealisticBiomes plugin) {
 	 */
 	@EventHandler(ignoreCancelled = true)
 	public void onBlockGrow(BlockGrowEvent event) {
+		Material m = event.getNewState().getType();
 		Block b = event.getBlock();
 		
 		GrowthConfig growthConfig = plugin.getGrowthConfig(b);
@@ -57,7 +58,7 @@ public void onBlockGrow(BlockGrowEvent event) {
 			
 			event.setCancelled(true);
 		}
-		else if (!willGrow(b)) {
+		else if (!willGrow(m, b)) {
 			event.setCancelled(true);
 		}
 	}
@@ -155,14 +156,18 @@ public void onBlockDispense(BlockDispenseEvent event) {
 	 * Determines if a plant {@link Material | @link TreeType} will grow, given the current conditions
 	 * @param m The material type of the plant
 	 * @param b The block that the plant is on
-	 * @return Whether the plant will grow this tick
+	 * @return true if the block should grow this material, otherwise false
 	 */
-	private boolean willGrow(Block b) {
-		if(plugin.hasGrowthConfig(b)) {
-			boolean willGrow = Math.random() < plugin.getGrowthConfig(b).getRate(b);
-			return willGrow;
+	private boolean willGrow(Material m, Block b) {
+		GrowthConfig config = plugin.getGrowthConfig(m);
+		
+		// Returns true if the random value is within the growth rate
+		if (config != null) {
+			return Math.random() < config.getRate(b);
 		}
-		return true;
+		
+		// Default to no growth
+		return false;
 	}