Use Medium Green to model summer grasses. It also works great along roads and in ditches. 57.7 in (945 cm) Shaker. Static Grass Flock is a fiber product that models grass and/or weeds. It is available in six colors and can be used alone, or withFine Turf. Place under trees, along ditches, or as forest litter. Attach with Scenic Cement. 1/16″ – 1/8″ (1 mm – 3 mm) in length.