Today is October 8, 2020. Is it too early to prune spirea. Is it better to wait until late winter (March)?
Oakland County Michigan
It is wise to prune plants in the fall after it enters dormancy. If you prune before that, the shrub may put on new growth which can be damaged and killed should an unexpected frost occur.
When you prune spiraea usually depends on the species. Bridalwreath (Spiraea arguta), is usually pruned after it flowers in early summer.
Japanese spiraea, (Spiraea japonica), can be pruned twice in a year. First in early summer, right after it blooms by removing the dead flowers and to promote more flowers. Second, in winter or early spring to shape and control its size by cutting it to the ground.
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