Amanda Andrade-Rhoades

Mark Hines owns a small farm in Derwood, Md., where he harvests award-winning produce at night. He’s usually accompanied by his dog Cooper, whose job includes chasing off foxes. Mark’s day begins as the sun sets, opting to harvest his crops at night to avoid high temperatures fueled by climate change. (Amanda Andrade-Rhoades for The Washington Post)

Moises Mariona, a friend of Mark Hines, holds a late-summer tomato crop in his shirt after harvesting them at night. Hines believes gathering crops in the cooler temperature improves their taste. (Amanda Andrade-Rhoades for The Washington Post)

Moises Mariona, left, and Mark Hines prune tomato vines in a greenhouse at Hines’s farm. (Amanda Andrade-Rhoades for The Washington Post)

Moises Mariona examines dahlias that will be harvested for a competition at the Maryland State Fair. (Amanda Andrade-Rhoades for The Washington Post)

Mark Hines walks into one of his greenhouses so he can work on one of the final harvests of his season. Hines now works on his farm between 9 p.m. and 2 a.m. to avoid the heat. (Amanda Andrade-Rhoades for The Washington Post)

Cooper hunts for insects as his owner, Hines, works inside a greenhouse. (Amanda Andrade-Rhoades for The Washington Post)

Green bell peppers are seen on Mark Hines’ farm in Derwood, Maryland. (Amanda Andrade-Rhoades for The Washington Post_

Moises Mariona, left, and farm owner Mark Hines pack and prepare produce for patrons. (Amanda Andrade-Rhoades for The Washington Post)

Mariona left, and Hines look for stray vegetables as Hines’s dog Cooper wanders. (Amanda Andrade-Rhoades for The Washington Post)