That is not what I was expecting to hear. Wish I had posted this question before we installed it.

There's always little pieces of artifical grass.

I have heard that is is not recommended because of the maintenance issues mentioned above. Maybe you could fill the holes with dg to maintain permeability.

What is dg?

Someone recommended tall fescue. Anyone have experience with this grass?

Have you considered non-grass fillers like elfin thyme, creeping thyme or some Corsica mint? DG is decomposed granite, the filler soil you see on banks and other graded areas..kind of orange brown and becomes like concrete when dried out

I will look into those suggestions. Someone also suggested moss but I am not sure if it would survive the occasional driving on the driveway.

There are different colors of DG. You could fill in the cavities with a contrasting color and at least have a pattern. Moss needs lots of water and shade.

Thanks to all for your comments. I think we are going to try creeping thyme. I love the look of it and from what I've read, it's quite durable. Wish us luck!

We are on year 5 of our grasscrete driveway in the mid Atlantic area (zone 7A) and have areas with full sun and some in shade. We have tried a number of different grasses and buffalo grass is pretty good and draught tolerant once established but we are currently trying elfin thyme in places with the most sun. It is a PITA with all the weeding. Hoping the thyme is the ticket to less/no weeding eventually. (Hey, I can dream....)