

I have three easy ways to prune them, as well as the best time of year to do it. You won’t kill a spirea by pruning it! (At the worst, it might not bloom for a year). This is a shrub that responds well to trimming, so prune and shape as needed.Sometimes it’s hard to make the cut, but pruning spirea is a pretty worry-free job. 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 season. Trim straight across the top of the plant, and when you release the rope you’ll have a perfectly rounded spirea. Tie a piece of rope around the center of the shrub. Cutting it way back will stimulate new growth in tighter clusters so that you can get a more rounded, compact shrub shape.Ī professional strategy for getting perfectly rounded spirea is easy enough for the home gardener. Remove any dead branches and use this trimming to shape the shrub. More drastically cutting back spirea should occur in the fall or in late winter to early spring. You can also shape the shrub at this time. This removes the dead blossoms and also may trigger a second blooming and new leaf growth. Give it a good trim after it flowers in the spring by cutting back the tips of the stems to the top leaf bud.

You should actually prune your spirea more than once a year, at least twice. The stems can start to look tangled and messy. Without trimming these shrubs tend to look woody with dead branches and overgrown.

The other main reason to do regular spirea pruning is to keep your shrubs looking attractive. Trimming also gets more airflow between branches, which deters fungal infections and is a good way to restore health and vigor to an overgrown, neglected shrub. A good trim helps get rid of dead branches and leaves and allows more sunlight in to the new growth that is struggling at the bottom or interior of the shrub. There are several reasons to trim your spirea regularly, at least twice a year. The solution is simple: trimming spirea plants keeps them looking healthy and attractive year after year. It’s a common complaint, however, that these small shrubs start to look ugly after a season or two. Spirea is a lovely foundation plant, providing greenery and flowers.
