What to know
- Smooth Tall Grass is Onix’s habitat requirement in Pokémon Pokopia.
- You need 1 Smooth Rock and 4 Dry Leaves to create it.
- Smooth Rock is found in the cave where Onix hides.
- Delivering the habitat to Onix unlocks a Pokémon with the Bulldozer ability.
To progress in Pokémon Pokopia, you eventually need a Pokémon with the Bulldozer ability. One way to obtain it is by creating Onix’s Smooth Tall Grass habitat. This habitat requires a few natural materials gathered from the environment. Once you build it and present it to Onix, it unlocks the Bulldozer helper Pokémon that helps you reach later areas such as the Pokémon Center.
Quick overview of Onix Smooth Tall Grass habitat
| Requirement | Details |
|---|---|
| Habitat name | Smooth Tall Grass |
| Associated Pokémon | Onix |
| Required items | 1 Smooth Rock, 4 Dry Leaves |
| Smooth Rock location | Cave where Onix is hiding |
| Dry Leaves source | Dead plants in dry regions |
| Reward | Unlocks Pokémon with Bulldozer ability |
| Progress benefit | Helps you reach the Pokémon Center |
Locations where you can gather the required materials
To build the habitat, you must explore two main environment types. The Smooth Rock is located in the same cave where Onix is hiding. Exploring deeper into the cave area usually reveals the rock needed for the habitat.

Meanwhile, Dry Leaves can be collected from dead plants found in areas with very little rainfall. These plants appear dry and brittle compared to the lush vegetation elsewhere, making them easy to identify.
How to get Onix’s Smooth Tall Grass habitat in Pokémon Pokopia
Follow these steps to unlock the habitat and obtain the Bulldozer ability.
Step 1
Find the cave where Onix is hiding. Explore inside the cave and search the ground and rock formations until you locate the Smooth Rock.

Step 2
Collect the Smooth Rock from the cave. This is the main base item required to build the Smooth Tall Grass habitat.

Step 3
Travel to areas with dry or dead plants. Interact with these plants to gather Dry Leaves.

Step 4
Continue collecting until you have four Dry Leaves. You do not need the Leafage upgrade to obtain them.
Step 5
Open the building or habitat placement system and place 1 Smooth Rock and 4 Dry Leaves to create the Smooth Tall Grass habitat.

Step 6
Bring the newly created habitat to Onix. Once it is delivered, the habitat will register and unlock the next progression reward.

Step 7
Receive access to a Pokémon with the Bulldozer ability. This ability allows you to clear obstacles and continue progressing toward the Pokémon Center.

Habitat materials breakdown
| Item | Quantity | Where to find |
|---|---|---|
| Smooth Rock | 1 | Cave where Onix is hiding |
| Dry Leaves | 4 | Dead plants in dry areas |
Reward for creating the habitat
| Reward | Description |
|---|---|
| Bulldozer ability Pokémon | Allows clearing blocked paths |
| Progression unlock | Helps access the Pokémon Center area |
Unlocking the Bulldozer ability and progressing further
After delivering the Smooth Tall Grass habitat, the Bulldozer ability becomes available through the Pokémon you unlock. This ability is particularly useful because it clears blocked terrain and lets you travel into areas that were previously inaccessible.
Once you gain Bulldozer, you can push forward toward important locations such as the Pokémon Center, which is an essential milestone early in Pokémon Pokopia.
Building Onix’s habitat to unlock Bulldozer progression
Creating Onix’s Smooth Tall Grass habitat is a small but important progression step in Pokémon Pokopia. By gathering one Smooth Rock and four Dry Leaves, you unlock the Bulldozer ability Pokémon that helps open the path toward the Pokémon Center and later game areas.