I'm not sure on the type of grass yet. As long as it has small stalks I'll take it.I'm ditching the animal under the tree. I think the "tree" on one side and tall grass on the other with a gravel path winding through is enough. We'll see. I'm no longer putting it in that awful colored dish. I have a white rectangular dish that I found at good will. I'll drill holes in it with my masonry bit and *poof* inexpensive penjing dish.I like it much better. If any one is interested, I'll post a picture.