Rooftop gardens face special challenges: Since they’re constantly exposed to direct sunlight and wind, they demand super-tough plants. Here are great examples of green roofs that thrive

Rooftop gardens face special challenges: Since they’re constantly exposed to direct sunlight and wind, they demand super-tough plants. Here are great examples of green roofs that thrive

Kathleen N. Brenzel  – October 12, 2015 | Updated May 29, 2018