Ask-a-Dave's-Gardener: Planting a Drainage Ditch, 2 by Pistil

Pistil wrote:
It sounds like an almost impossible gardening dilemma! I would walk around more established neighborhoods. Find what is surviving in these ditches, and plant that. This is clearly not a situation where you can hold out for something particularly beautiful. You just need survival!
Here are some snapshots I took in a mall parking lot in Seattle, I thought they did a very nice job with the drainage ditch! I don\'t know what the plant is.