This Friday, June 21, brings the summer solstice: when the North Pole tilts toward the sun and reaches its northernmost point over the Tropic of Cancer. It is considered the longest day of the year and the beginning of summer in the Northern Hemisphere.

Practicing roadside botany? Many of us are fortunate to be able to hike the trails with our trusty field guides, but if you commute over the hill, the end-of-season spots of…