Some of the sedges (Carex spp.) might work, but I garden in drier areas so I don't have much experience with them and can't say for sure. They tend to like moist soils but I don't know about *wet.* There are some gorgeous ones -- 'Frosty Curls' is a gorgeous silver one (see http://randolphsgreenhouses.com/gallery/pics/39.jpg) but there are all kinds and colors.

Another really cool plant that might do well is Juncus 'Spiralis' (corkscrew rush) -- see the link below -- it's not exactly a grass but it has really cool, twisty growth. I love the darned thing and have a small pot of it sitting in a "pool" of water. I've only seen it to about 18" although some of the websites will tell you it gets larger, so I'm not sure.

Also, check with your garden centers/nurseries for water plants (for backyard ponds, etc.) -- they should be able to guide you to some selections. At least some of the water plants will grow in soil if it's kept moist enough, and it sounds like that's what you have. I saw some grasses or grass-looking plants for water gardens at one of our nurseries but didn't look at them because I don't have a spot for them.

Here is a link that might be useful: Juncus

Also check these:

Anthoxanthum odoratum - Sweet Vernal Grass
Luzula (several) - Woodrushes

They are lush, easy, and can be quickly grown from seed.

Carol Ann, thanks! That Juncus certainly is interesting looking! I'll check out the other site you mentioned too and will research Carex species.

Donn, thanks! I'll also check out the plants you mentioned.

I appreciate the suggestions.

In addition to various sedges (there are numerous Carex spp. that would probably work in your situation, if you can find them), you might also try sweetflag or Acorus. It is easy to find in nurseries and big box stores and grows well in the shade as well as wet conditions. There are plain green, variegated and gold-leaved varieties of Acorus.

I only have one sedge in my garden, Bowles Golden Sedge, Carex elata aureum. It is the nicest golden grass that I have found and really brightens up a shady spot. It can grow in ponds, so it would handle your streamside just fine. A little bit of sunlight will help the color.

dawgie, thanks for the suggestion of Acorus and Bowles Golden Sedge. I'll check those out too.

I researched Luzulas yesterday and they sound very nice. I think with all these great ideas I should have a variety because the stream runs through the yard about 120 feet, with varying patterns of sun and shade. In some areas the banks are high and dry and in some areas it's low and soggy.

You must have a good budget . I think Carex is your best bet . Carex dolichostachya 'Kaga Nishiki', Carex flaccosperma , any Carex muskingumensis , and in the drier areas Carex oshimensis 'Evergold'. Chasmanthium latifolium seeds spread out in the fall will naturalize and mature to 3-4 ' . Carex plantaginea or platyphylla . blah blah

smalljaw. no budget!! This will likely take me the rest of my life:-) Thanks for the Carex suggestions. I'll look each one up online. I've made a list of favorites so when I find something on sale or a good deal, I'll know to grab it.

Another vote for the Bowles Golden Sedge and Carex in general. I have mine in a drier spot in part shade in Oregon and it looks great almost the whole summer with some deep watering now and then. They are said to do best in a wetter spot with decent sun. Very bright and attractive grass. Have fun -- there may be many out there who wish for a little creek to run through the property.

I'd opt for Japanese iris...they would love the moisture, have a similar leaf form/shape to an OG but have the added benefit of georgous flowers in June. If you're not familar with them...I've included a link to some info.

Here is a link that might be useful: Japanese Iris