I'm not a landscape architect, but I think it makes much more sense to use the oval space for plantings, not grass. If you think mulch would run off, you could always use pea gravel or river rock.

I was thinking about river rock but I wonder if that would be ok since around the whole house is mulch. I know they wouldn't rock it all.

I'd suggest to take off the extra mud from the oval patch about 1'' below the concrete and then put some plants and put Riverstones and pebbles .

If you put small shrubs, perennials and a ground cover to fill in the gaps you won't need mulch or gravel or anything that might wash away or make the driveway messy. And because it is enclosed by concrete, you don't have to worry about the ground cover trying to spread beyond its boundaries. I don't know where you live, but there are lots of beautiful ground covers (some of them flowering) for any climate. If you can tell me what planting zone your parents are in I might be able to make some suggestions (I'm in zone 6).

Thank you to all that replied. According to the USDA Planting Zone Map I looked up, they are in zone 4A, however they are by a patch that is rated 3B. My mom always comments that they live in a hole where it's either colder than the surrounding area, or rain goes around them. I always thought she was being dramatic but I have to say it has actually been true. I like the idea of digging down 1" then filling in. The concrete would help hold the pebbles or mulch back. I loved the pictures that were attached and will forward them to her. Everyone had great suggestions and now I feel like I wasn't alone. I know it's not rocket science but now I have back up! Thank you!

While I understand your desire to help your parents, they are indeed adults and perhaps will not thank you for telling them they did it wrong. It's a small area. Why not let them learn by their mistakes and then, if they ask, you'll be well armed with suggestions.

Do crushed limestone. Very clean, modern touch. Works nicely with landscape lighting.

What about a wonderful water features a focal point with plantings around.

Stones can be used. However if in southern climates, I would go with mulch as the stones don't hold moisture for the plants. Not worth mowing that little patch when it could add such impact to the property with plants.

Yes, me, too...plants and mulch in the oval area.

I've seen it both ways, but also consider- do they want the upkeep and work of a large planting area? Or is grass easier for them to maintain?

Guys, this post is four years old. Try to find a more recent discussion to contribute to...