Spring is in the air, and with that comes the important task of preparing green roofs for the season ahead. Good maintenance means good performance!
Various species of Sedum are the workhorses of extensive green roofs. However, it is not wise to rely on one genus in any landscape, regardless of whether it is located on a roof or at ground level. The genus, Allium, is one group of plants that can complement sedum or be grown with other plant species.