Red Butte Garden has a new green roof! Come check it out. Its great design is composed of four varieties of Sedum and one variety of Sempervivum all flowing together.
Green roof above Visitor Center gift shop
The planting medium used is called Litetop® Soil. It is a specially blended lightweight growing medium composed of organic and mineral material. It retains moisture for plantings, yet drains excess water quickly and doesn't compact.