280-315 NM: ULTRAVIOLET-B (UV-B)
Although it is outside the range of light humans can see, researchers have
discovered UV-B radiation can be beneficial to plants. Some plant varieties
will naturally increase their production of essential oils when exposed to
UV-B radiation. It is believed many plants create essential oils as a defense
mechanism against a variety of potential problems, including overexposure
to UV radiation.
So, supplementing UV light in an indoor garden’s flowering room can trigger this
natural response and increase a crop’s essential oil production. Metal halide-type
lamps (metal halide, ceramic metal halide) naturally emit UV-B light, making
them a good choice for U