Tall grass

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Tall grass

Tall grass is a mechanic in the Pokémon main series, as by entering patches of tall grass, a wild Pokémon may appear and begin to battle the player. It is the prime habitat for wild Pokémon, much like caves and water.

Tall grass is found on most routes of the Pokémon World, with some routes containing more tall grass patches than others. If the player enters a patch of tall grass, they may enter a random wild Pokémon battle. People are warned to stay out of tall grass if they don’t have a Pokémon due to the possibility of being attacked by wild Pokémon.

In Generation III, if this grass was Cut, it would be totally erased, unlike Generation II, where different styles of grass (such as in National Park) would change into normal grass once Cut was used on them. The ability to use Cut on grass was removed in Generation IV.

Alternative areas

Long grass

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Long Grass on Route 119.

Some areas in the Pokémon World have larger patches of grass than usual. These patches of grass have grown longer and more widespread than the usual grass patches, hiding many different species of Pokémon. Because of the length and thickness of the grass, it is impossible to ride a bicycle or run through the patches in Generation III, but one can run through them in Generation IV. Some trainers hide in the long grass patches, concealing themselves from view and surprise the player to a battle. Long grass was introduced in Generation III and found on Route 119 and Route 120 in Hoenn. It is also present in Generation IV on Sinnoh's Route 210, among other locations.

Seaweed

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Patch of seaweed

Seaweed, found only in Generation III, is located underwater in Pokémon Ruby, Sapphire, and Emerald, as an underwater equivalent to tall grass on land. Seaweed can be found while using Dive on dark patches of water on Route 124 and Route 126. The chance of encountering Pokémon in seaweed is less than that of tall grass.