Looks like the grass works best in Z scale . So does that tell us something ........... would longer grass .......... , does it come in lengths ?
The grass does come in different lengths. Check out
www.sceneryexpress.com to see some of the many options for both color and length. The autumn-color grass I used here is 6mm length. I added some variation with some 2mm summer blend (it's what I had on-hand), so it wouldn't look so monotone. If I remember right, the 6mm length works out to to be a little over 4' in Z. BTW, MicroMark has an "economy" static grass applicator for around $35. That's what I used, and it works great. Beats the heck out of paying $100+ for some of the applicators I've seen.
Chris