CVar groundEffectDensity

Set the density of ground effects such as ferns, flowers, grass, and rocks. (16-256)

Default Setting

 * 16

Possible Settings

 * 16 :min, default setting
 * 80 :'High' setting
 * 256 :max setting

Changing this setting
In-game, type the following /console groundEffectDensity setting

Alternatively, you can exit wow, open the Config.wtf file, and add the following line: SET groundEffectDensity setting