Arts & Life Lavender Montana Public Radio | By mtpr.org Published January 31, 2014 at 8:00 AM MST Facebook Flipboard LinkedIn Email Listen • 1:29 February 1st, 2014: Fragrant and medicinal, lavender can affect people's alertness and mood. Depending on the species, it can stimulate or calm, sharpen or soothe. It's helpful in treating anxiety and sleep disturbances.