Fir Grass is found in the Pine Forests. Cut the fir grass to collect Fir Grass Seeds. This type of grass tuft can be found in the Pine Forest.
The player can harvest Fir Grass Seeds by destroying the grass tufts with a tool or weapon or by mowing it with a Lawn Mower. Mowing this grass will lead to no flowers, grass tufts or trees growing on it. It will also change the appearance of the grassed area.