diff --git a/src/main/java/de/ellpeck/naturesaura/chunk/effect/PlantBoostEffect.java b/src/main/java/de/ellpeck/naturesaura/chunk/effect/PlantBoostEffect.java
index 5c2dee66..1f1ecb31 100644
--- a/src/main/java/de/ellpeck/naturesaura/chunk/effect/PlantBoostEffect.java
+++ b/src/main/java/de/ellpeck/naturesaura/chunk/effect/PlantBoostEffect.java
@@ -63,7 +63,7 @@ public class PlantBoostEffect implements IDrainSpotEffect {
         for (int i = this.amount / 2 + world.rand.nextInt(this.amount / 2); i >= 0; i--) {
             int x = MathHelper.floor(pos.getX() + world.rand.nextGaussian() * this.dist);
             int z = MathHelper.floor(pos.getZ() + world.rand.nextGaussian() * this.dist);
-            BlockPos plantPos = new BlockPos(x, world.getHeight(Heightmap.Type.WORLD_SURFACE, x, z), z);
+            BlockPos plantPos = new BlockPos(x, world.getHeight(Heightmap.Type.WORLD_SURFACE, x, z), z).down();
             if (plantPos.distanceSq(pos) <= this.dist * this.dist && world.isBlockLoaded(plantPos)) {
                 if (NaturesAuraAPI.instance().isEffectPowderActive(world, plantPos, NAME))
                     continue;