# AddTreeInstance(TreeInstance)

> Adds a tree instance to the terrain.

## Definition

* **Type:** Method
* **Namespace:** [UnityEngine](/engine/7000.0/script-reference/unityengine.md)
* **Assembly:** UnityEngine.TerrainModule

```csharp
public void AddTreeInstance(TreeInstance instance)
```

### Parameters

**** (\[TreeInstance]\(/engine/7000.0/script-reference/unityengine/treeinstance)): The tree instance to add.