Rehmannia elata 'Rose Glow' is a Chinese foxglove with tall stems carrying bright hot pink bell-shaped flowers from spring to fall that are often marked with yellow, white, or purple in the throat. It forms gently spreading clumps, is a deciduous perennial native to China that grows to 2 feet tall, and thrives in full sun or light shade with most soils and moderate watering, being hardy to 10 degrees F or less.