All my impatiens still look pretty good No sign of any disease.I'm letting them go.I'm just tired of watering .It is just getting too cool at night for the tender things.I could see patches of frost on the roadside grass this morning.Time to enjoy the flowering kale & grasses.
Rose Iowa

Same here, Rose, just tired of watering and pruning spent flowers. Maybe I like the 4 seasons after all.
Pat Mich.

Yes, the foliage is lovely. My NG's are still going strong, one of my favorite annuals, no doubt. I have been growing them from seed; they are pokey in the house under the lights, but once planted they really take off and turn into lush blooming machines :0)