To grow a mega jungle tree, you need to plant jungle tree saplings in a specific configuration and ensure sufficient clear space above them. Here's a breakdown:
Planting the Saplings
- Placement: You must place four jungle saplings adjacent to each other in a 2x2 square. This is the foundation for the mega tree.
Ensuring Successful Growth
- Clearance: There must be no blocks directly adjacent (or even diagonally) to the northwestern sapling of the 2x2 square, all the way up to the eventual height of the tree. The game checks for obstructions from the ground up. Any block in the way will prevent growth.
- Lighting: Jungle saplings, like other trees, require light to grow. Natural sunlight or artificial light sources will suffice.
Accelerating Growth
- Bone Meal: Bone meal can be used on any of the four saplings to greatly accelerate the growth process. Keep applying bone meal until the mega jungle tree forms.
In Summary:
- Plant four jungle saplings in a 2x2 square.
- Ensure there are no obstructions directly adjacent (including diagonally) to the northwestern sapling, extending upwards to the full potential height of the tree.
- Apply bone meal to one or more saplings to speed up growth.