Disclosed is a lighting assembly for growing plants. The lighting assembly has a first light source emitting light in a first wavelength range of 600 to 750 nm; a second light source emitting light in a second wavelength range of 375 to 500 nm; and a controller for controlling the output of the first light source independent from the output of the second light source. Disclosed are also an enclosure for growing plants, and a method for growing plants.