Sick Maple (pic)
Put a maple in about a year ago and it's struggling. These pictures are from mid-September. Leaves aren't so much turning as they are just dying. Not a seasonal thing -- other maples in the neighborhood seem to be doing just fine.
Not sure whether I'm overwatering, underwatering, overfertilizing, underfertilizing, or if there's something else entirely I need to be doing.