Sedum rupestre 'Angelina'
This vigorous, mat-forming, evergreen species has electric golden-yellow foliage that holds its color through the heat of summer. The foliage tips sometimes develop an orangey hue. In June and July, 'Angelina' has terminal clusters of star-shaped, vibrant yellow flowers. The drooping buds face upward when they open and the plant can grow to 6 inches tall and 12 inches wide. It is superlative as a groundcover, spilling over rock walls, and in containers. It also makes an excellent accent for plants with dark foliage.