How to prune spiraea prunifolia

Immediately after flowering finishes, late spring. Cut one-quarter to one-third of the oldest stems right at the base each year to promote renewal growth. Trim remaining flowered branches back to a healthy lateral shoot. Avoid the temptation to shear — this destroys the natural arching form and reduces flower quality.

Annually. Yes, Bridal wreath spiraea blooms on old wood in spring, so pruning must happen immediately after flowering — not in winter or spring. Remove the oldest stems at ground level and lightly shorten flowered shoots to encourage new canes. This maintains the graceful arching habit and keeps the plant from becoming a dense, woody thicket.

Cut one-quarter to one-third of the oldest stems right at the base each year to promote renewal growth. Trim remaining flowered branches back to a healthy lateral shoot. Avoid the temptation to shear — this destroys the natural arching form and reduces flower quality.