Some of the wildflowers are four to five feet tall, and they may not be done growing. The bulk of what you see here is false (oxeye) sunflower, not yet in bloom. We're now talking about thinning it out to give the other forbs and the grasses a chance to compete.
In fact, the garden is growing so exuberantly that one of our neighbors filed an anonymous complaint with the county weed-control office, which is tasked not only with the control of noxious weeds such as purple loosestrife, tamarisk, and various non-native thistles (we have none of the above) but also with enforcement of Lincoln's 6-inch limit on lawns. Both the complaint and the initial inspection (apparently a hurried drive-by inspection) occurred before anything was in bloom; we were found to be harboring "weeds and worthless vegetation" and ordered to cut same.
I phoned and later e-mailed the superintendent of the weed-control office, who agreed to re-inspect the garden personally. That's been two weeks now, and I've yet to hear back from him, but I know his department is severely overworked. Here's some of what he'll find when he does come out (all of these photos were taken in the last few days):
Purple poppy mallow
Desert prince's plume and white sage
Coreopsis and narrow-leaved purple coneflower
"Husker Red" penstemon
Prairie coneflower ("Mexican hat")
So what do you think? Weedy and worthless?