I have several tallish grasses growing as screens in part shade here; they're pretty enough, but they do flop. Hey! That's right! I nearly forgot that we made some taller prop panels that we're going to use for that purpose next year. I figure if I can get some support up to mid-height some of the grass blades will grow through it but the main part of the plant and the blooms might stay more upright. As it is now, once we get a decent rain they lay over on the plants in front of them. I don't want to move them out; I really enjoy watching the sun play through the swaying seed heads all winter long.
Bet something like that might work very well if you do decide to go with a grass.
I really do need to get those panels out, get them painted and put the hinges on while the weather's still cooperating!
