Fran,I have a collection of grases however just getting started with forest grass,no black mondo,have zebra grass,white striped fountain grass and green, hevey metal, a really great grass Dewys blue.karl forrester,a small brown carex,you missed the best time to get grasses is in the early spring ive got some left could trade with you if intrested, also have pond plants and colocasia for trade Hightider

This will illustrate how they grow: These were installed in September of '07. I got them in the spring as 3" plugs, and grew them on for the summer in trade gallon pots: This is this morning:

I ran across this the other night. Its a good one for comparing color and size. I think its a gorgeous mass planting of various grasses. To complicate matters in your decision making process, there is a variegated Moor Grass (Molina) that is quite small, has a white stripe on the leaves and very cold hardy. Has fantastic seed heads that would add interest. I'm in love with Sesleria autumnalis. Its small, yellow green, tough and really brightens up a spot. The seed heads are downright cute. I'm ordering several more if SRG puts them on sale in late fall & I'm saving seed from the plants I have to sow. They have done beautifully and are 0 maintenance with no extra watering, sun or shade. There is a smaller one that is blue, its used in this planting below. Very well behaved with good color and habit. Chicago/Grant Park grasses

I have the same situation: Large areas planted with forbs (i.e. plants that aren't grasses), and invasion by grasses including stiltgrass. When I saw how destructive stiltgrass can be once it gets a foothold, I realized I had to expand my chemical repertoire beyond glyphosate. So now I use Grass Beater, a brand of selective herbicide that targets only grasses. It's more complicated to use than glyphosate because you have to mix it with oil, and it's more expensive. But it's been a huge help in deterring the invasion of my "meadows" by grasses, so I have more energy to spend on non-grass invaders.