Grefsheim Spirea

Grefsheim spirea is a deciduous shrub with slender, arching branches that carry abundant fragrant white flowers before the leaves emerge. North Carolina State Extension lists the cultivar at 5 to 6 feet tall and wide and in USDA Zones 4–7; the RHS gives a comparable mature range of 1 to 1.5 meters. [North Carolina State Extension](https://plants.ces.ncsu.edu/plants/spiraea-x-cinerea-grefsheim/common-name/grefsheim-spirea) · [RHS](https://www.rhs.org.uk/plants/76395/spiraea-cinerea-grefsheim/details) ## Landscape Use Plant it in a sunny shrub border, as a low mass, or on a bank where its broad mound and early white bloom can be seen. It tolerates light shade and a range of soil textures, but flowers best in full sun and needs soil that drains well. [North Carolina State Extension](https://plants.ces.ncsu.edu/plants/spiraea-x-cinerea-grefsheim/common-name/grefsheim-spirea) ## Maintenance Prune after flowering if shaping is needed, or renew an overgrown shrub with a harder cut soon after bloom. Grefsheim can spread by suckers, so remove unwanted shoots when they appear. Avoid waterlogged soil and allow room for the arching branches.