I posted this in another forum, but I think it's actually more of a companion question...

I've had to move the bed for my veggie garden (tomato, carrot, chive, garlic, cilantro, pumpkin, nasturtium) due to a robin's nest built too close to my old one with a very protective mother...

Now the bed is right up beside the patio (cement) and I've found that about 4" down is just a bunch of huge rocks (I'm assuming this was the layer they put down before pouring the patio). Anyway, if I move the bed out, it'll be in the middle of the lawn and a pain to mow around and I don't think I'm going to be able to dig up all of the rocks...

Is there a REALLY SHALLOW-rooted border plant I could use to fill the first 1' of ground next to the patio? Maybe something flowering that would also serve some purpose (like deterring pests)?

I figure, if all else fails, I could plant my chives there, but I'd prefer for them to be intermingled among my other veggies. Any suggestions would be greatly appreciated.

Thanks,

Heather