Q: What kind of flowers are planted at the intersection of I-285 and Camp Creek Parkway?

—Bob Markert, Roswell

A: The flowers planted around the Camp Creek Parkway exit of I-285 are a type of wildflower known commonly as cosmos, Christopher DeGrace, landscape architect for the Georgia Department of Transportation, told Q&A on the News in an email.

Cosmos, which can grow up to 6 feet tall, have daisy-like petals and typically come in shades of pink, white and maroon. These flowers are part of a GDOT roadside enhancement project that by the year’s end will have spent approximately $750,000 planting daffodils, poppies and wildflowers around highways statewide, according to GDOT.

Q: Was the tire that flew off a pickup truck on Ga. 400 and killed another driver from the truck’s cargo, or did it come from the vehicle’s axle?

—Michael Poynor, Atlanta

A: The pickup truck tire that struck and killed a Ga. 400 driver on Oct.16 was the vehicle's left rear wheel, Sgt. Sam Worsham of the Sandy Springs Police Department told Q&A on the News in an email. The AJC previously reported that the wheel flew over the interstate's dividing wall and landed on the victim's windshield.

“It was determined to be a mechanical failure and the wheel broke from the hub,” Worsham wrote.

Julieanna Shedrawy, 49, of Alpharetta, who was the only person in the Nissan struck by the tire, died on the scene.

Fast Copy News Service wrote this column; Dillon Thompson contributed. Do you have a question? We’ll try to get the answer. Call 404-222-2002 or email q&a@ajc.com (include name, phone and city).