Pycnanthemum muticum or mountain mint is one of my new favorite perennial plants. Not only does it have a sweet white-pink flower, the leaves and stems have an almost icy appearance. It is lighting up one of the darker spots of a shady forest area in my front yard. I am planning to add lots more of it (plant gluttony, again) throughout that area. Although it is not supposed to do well in deep shade, rather preferring full sun to part shade, I am going to experiment a bit to see how deep into the shade it will thrive. Already now, on the edge of sun and shade, it is doing a good job of lighting up the area. It is native to the US in zones 4-8. It’s height and spread is from 1-3 feet. It blooms from July to September. It tolerates some dryness and attracts butterflies and bees. It is not bothered by insects or deer. It can be used to make tea and may be used as insect repellant when rubbed on the skin. So many virtues!