I have the most beautiful Hakol (yellow-green grass) that is 13" tall now and I need some suggestions for a broad-leaf, dark green perennial or evergreen to plant behind it to show it off! I'm completely re-doing my pint-sized garden (100 sq. ft") this fall and want the Hakol to be the focal point in one of 2 areas. I have a dark green Astilbe behind it now but in recent years the Astilbe hasn't performed as well as it has in the past. Any suggestions? I'm getting so excited about having a completely new garden that replaces the grass (our conditions have never been good for grass) with perennials and ground covers.