diff --git a/src/main/java/world/bentobox/greenhouses/greenhouse/BiomeRecipe.java b/src/main/java/world/bentobox/greenhouses/greenhouse/BiomeRecipe.java
index bd43cbe..381c59c 100644
--- a/src/main/java/world/bentobox/greenhouses/greenhouse/BiomeRecipe.java
+++ b/src/main/java/world/bentobox/greenhouses/greenhouse/BiomeRecipe.java
@@ -328,7 +328,7 @@ public class BiomeRecipe implements Comparable<BiomeRecipe> {
             return false;
         }
         return getRandomPlant().map(p -> {
-            if (bl.getY() != 0 && p.getPlantGrownOn().map(m -> m.equals(bl.getRelative(BlockFace.DOWN).getType())).orElse(true)) {
+            if (bl.getY() != 0 && p.getPlantGrownOn().map(m -> m.equals(bl.getRelative(BlockFace.DOWN).getType())).orElse(false)) {
                 bl.setType(p.getPlantMaterial());
                 bl.getWorld().spawnParticle(Particle.SNOWBALL, bl.getLocation(), 10, 2, 2, 2);
                 return true;
diff --git a/src/main/java/world/bentobox/greenhouses/managers/EcoSystemManager.java b/src/main/java/world/bentobox/greenhouses/managers/EcoSystemManager.java
index e51208f..b3cbe52 100644
--- a/src/main/java/world/bentobox/greenhouses/managers/EcoSystemManager.java
+++ b/src/main/java/world/bentobox/greenhouses/managers/EcoSystemManager.java
@@ -25,6 +25,7 @@ import world.bentobox.greenhouses.data.Greenhouse;
  */
 public class EcoSystemManager {
 
+    private static final int PLANTS_PER_BONEMEAL = 6;
     private final Greenhouses addon;
     private final GreenhouseManager g;
     private BukkitTask plantTask;
@@ -132,8 +133,11 @@ public class EcoSystemManager {
         int bonemeal = getBoneMeal(gh);
         if (bonemeal > 0) {
             // Get a list of all available blocks
-            int bonemealUsed = getAvailableBlocks(gh).stream().limit(bonemeal).mapToInt(bl -> gh.getBiomeRecipe().growPlant(bl) ? 1 : 0).sum();
-            setBoneMeal(gh, bonemeal - bonemealUsed);
+            int plantsGrown = getAvailableBlocks(gh).stream().limit(bonemeal).mapToInt(bl -> gh.getBiomeRecipe().growPlant(bl) ? 1 : 0).sum();
+            if (plantsGrown > 0) {
+                setBoneMeal(gh, bonemeal - (int)Math.ceil((double)plantsGrown / PLANTS_PER_BONEMEAL ));
+            }
+
         }
 
     }