By Kat Harrold
Allium sensescens ~ Photo by Kat Harrold
Allium sensescens is a showy end of summer to early autumn bloomer that does well in both full sun and full shade. Its light pink pompom is about an inch in diameter and somewhat resembles a beach ball floating across a sea of gray green wavy leaves. A fragrant member of the Alliaceae family, it can contribute to a bouquet of scents in a floral herb garden. This plant is most suited for extensive to semi-intensive green roofs and requires little maintenance.