The other side of the spectrum in sculptural grass would be these works byMathilde Roussel - Geraudy: "life of grass works", as shown below. I love the sense of time from sown seed to growing wheat grass its an ever changing sculpture, each day a new dimension is added to the work. Although the artist in this case is talking about the cycle of food. There is still a sence of time. This sense of time in nature, reminds me of one of my favourite artist Andy Goldsworthy.
I found these works through a Google search: Grass Sculpture and found it in