Summer action and resources

This column has profiled an Invasive Plant of the Month since last October, providing season-specific information about seven damaging invasive plants that proliferate in town. This month covers summer strategies for gaining control over invasive plants and describes some key resources.

Alternatives to Invasive Plants

Since October 2019 the Not Wanted Drummer column has profiled seven damaging invasive plants in Granby, describing how to identify and control them over time. Now it’s the peak of the planting season, and this month’s column lists Wanted plants—good alternatives to invasives.

Autumn Olive

Autumn Olive is an inoffensive looking shrub or small tree with silvery green leaves, yellow flowers, and red berries in the fall.

Japanese Knotweed

Japanese Knotweed is an incredibly vigorous plant that forms dense mounds six feet high or more. Once established, it is extraordinarily difficult to remove.

Invasive of the Month: Multiflora Rose (Rosa Multiflora)

Multiflora Rose is an extremely vigorous shrub that is nearly impossible for humans to control because of its super-sharp thorns borne on long, arching branches that can grow six feet a year in every direction. It thrives best in full sun but persists in partial shade, in a wide range of soil, as long as it has adequate draining.

Oriental Bittersweet Celastrus orbiculatus

Bittersweet is an extremely vigorous woody vine that can grow dozens of feet, smothering the tops of small trees, strangling them, and pulling them down, similar to the southern kudzu vine. In large mature trees, bittersweet can wrap around the trunk, climb 60 feet or more and follow branches out in search of sun.