Plant Select® 2001. This is the only mock orange at the Experiment Station in Cheyenne that was prospering after years of neglect! Perhaps that is because this native western strain is suited to growth on alkaline soils (doesn’t get chlorotic) unlike many of the eastern or developed varieties. This tough but beautiful shrub named after Meriweather Lewis has dense racemes of 1-1.25 inch pure white flowers in early summer that provide sweet orange-blossom like fragrance. Use it where you will get to see and smell it but not where reflected heat will be a challenge.