I don’t think it can be mown frequently or anything like that More on reddit.com

Your potential choices of little bluestem and dropseed are right on the money. They’re beautiful, easy, and are clumping grasses that will only spread via seed. I would also consider side oats grama along with some of the mesic soil Carex species. Good luck! More on reddit.com

As a non-US person, I'm ignorant and curious ... I've watched these docos about the Wild West of the USA and something I can't get over is the native grasses of the Plains that have 3 metre deep roots. The amazing part is how much work the early settlers must have put in to eradicate these grasses to plant their crops, the understandable part is how drought turned Oklahoma into a dust bowl, which may not have happened if it was still a prairie. And the curious part is that this is the first post I've seen mentioning replanting native prairie grasses. I think my ignorance is at least partially to blame, I don't recognise the names. Is part of the reason that tall grasses are less popular in plantings is that they don't have pretty flowers, so there's less motivation to plant them? I see that. I've known since I bought this house two years ago that I should plant some carex apressa, a 2m tall native grass/sedge that is excellent for habitat, because I live in a soggy block next to the mangroves and having checked out nature areas with the same conditions in my area, they are an integral part of the bioscape. But ... well, they take up a lot of space, don't offer a lot visually, and need sun, which I don't have a lot of in my yard, so I've not been able to see a place for them in my garden, only where they'd function well at other people's places. The good news is that during my rambling comment I've thought of a good place for them. Along part of my new black fence with the lawn-adoring neighbours. These neighbours hate trees, worship lawns and regularly put down poison on our fence line. The poison killed the greater part of my earliest plantings, at the top end of our shared fence line, and the plant free poison area has become a channel for all the upslope water run off straight into the bay. So, I'll plant carex apressa next to the black 6 foot / 1.8m high fence - lime green against black looks very good. I won't need to build up the soil in that area, they enjoy boggy conditions, being a sedge, they'll filter the poisons somewhat before hitting the bay waters, they clump thick so should help in stopping their invasive exotic grass and pennywort from coming into my garden. Plus, they won't grow too tall and scary for my tree hating neighbours. Slower growing flowering tall shrubs can be planted in front of them. So, thanks for the space to ramble! More on reddit.com

Cut back to about 6" above the ground. Next time, do it late winter/early spring. Keeping it up provides some winter interest and wildlife benefits. More on reddit.com