Two varieties of sedum, ‘Dragon’s Blood’ and ‘Angelina’, form a vibrant duotone on the green roof of Milstein Hall at Cornell University. The sedum ‘circles’ increase in diameter as they move closer to the edge of the building in the direction of the gorge.
Unfortunately this rooftop isn’t an open space yet but I had the opportunity to venture up there and walk around briefly. This peaceful plateau fully sustains itself in the variable weather of Ithaca, NY. It's an incredible planting and is worth a peek from the windows of Sibley Hall or from the ivy-covered stair tower.