Pruning will help encourage new growth and prevent diseases.
} Mar 30, Spirea bushes with red fall foliage and dead flowers blossoms are ready for a prune.
More drastically cutting back spirea should occur in the fall or in late winter to early spring.
Plan on pruning a spirea bush at least twice a year. Regular, scheduled trimming promotes good health and new growth.
Removal of dead or excess branches allows sunlight better penetration to the interior and lower treedelimbing.clubted Reading Time: 5 mins. You can also shape the shrub at this time. More drastically cutting back spirea should occur in the fall or in late winter to early spring.
The two main trimming periods, in early spring and after blooming, are most important to do each year, but you can also trim your spirea as needed throughout any treedelimbing.clubg: Richmond MA.