John,
The ideal grass for your situation might be Calamagrostis 'Karl Foerster'
Foliage is short, flowers are very upright (ie, won't lean into your walkway)
Flowers in June & flowers dry off & look good right into March. Grass is evergreen in your zone so would look good all year round.

There are a couple of variegated cultivars if you would prefer that - look for 'Avalanche' or 'Overdam'

Here is a link that might be useful: for pictures & information check out bluestem nursery

John ~ You might like Pennisetum alopecuroides 'Hameln' or dwarf fountain grass. It slowly spreads to a substantial clump.

I found a link for you that has pictures of it with perennials along a pathway, so that you can see how it might work for you.

Here is a link that might be useful: Pennisetum alopecuroides 'Hameln'

Thank you both achnatherum and praireigirlz!

A combination of a couple Overdams near the steps, and a border of the Hameln continuing down to the driveway I think will work very well here. I was a bit lost, but now I am found! LOL... honestly, thanks for the suggestions.

I think the K Foersters are bit too tall for this spot, but I think I have another spot for a few of them. I do like the look of this grass, and I prefer grasses that have a chance of holding up under some snow over the winter.

Lining that walkway with the Hamelns, with some annuals in a bed to widen the planting area should deter the postman (and others) from making paths through my lawn! I now envision about 5 Hamelns along the walkway, leading to two Overdams, the last of which would be planted alongside the first step of the porch off the railing, on a part of the garden bed that then runs under a picture window. That should (I hope) flow nicely into that garden bed which has the zebra grass along with other plantings.

Thank you so much for the suggestions!