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If there is another late freeze next spring, like this.

Mar 30, In the fall or late-winter, prune the spirea again. This trim is more aggressive than the spring-time one. Remove all dead branches, old foliage, and old shrubdelimbing.buzzted Reading Time: 5 mins. Oct 25, All spirea shrubs produce flowers on new wood, which is why cutting back spirea shrubs is so important. Spirea pruning not only rejuvenates the plant and encourages blooming, but it also helps to restrain the size of the shrub.

Mar 02, It’s a common complaint, however, that these small shrubs start to look ugly after a season or two. The solution is simple: trimming spirea plants keeps them looking healthy and attractive year after year. Importance of Pruning Spirea. There are several reasons to trim your spirea regularly, at least twice a year. The first is to keep it healthy.

If you trim these spirea varieties at other times of the year, such as during the winter, the limbs may not be able to recover from the pruning stress. The reasons to wait are twofold. If you stimulate new growth, that can indeed cause their demise during a possible early freeze/thaw cycle.

You will also have the opportunity to trim off any dead branches or winter-damaged growth. ken_adrian Adrian MI cold Z5. 13 years ago. proper shrub pruning. involves removal of up to 1/3 of the plant. Jun 23, Although the pruning of spirea is the central axis of this article, it does not stop being one of several of the caution that this bush needs to be healthy, strong and beautiful. In this section we will see the key care of spirea.

Sun: these shrubs prefer locations in full sun or with slight shade. If they are placed in places of exessive shadow, development will be delayed. Spirea Pink (summer blooming), includes A.

W., Daphne, Dolchica, Goldflame, Goldmound, Limemoumd, Little Princess, Magic Carpet, Neon Flash, Norman, Shirobana and Japanese White. Prune these shrubs in early spring before they leaf out. Remove 50% to 75% of the top of the shrub maintaining a mounded form. Remove the heaviest canes all the way. Nov 28, How to Prune Tips for Spirea Bushes.

Spirea shrubs (Spirea spp.) come in varieties that thrive in most climates, with most doing well in U.S. Department of Agriculture plant hardiness zones 5. Pruning Shrubs: stimulates and encourages new growth. promotes flowers production. creates an overall stronger more resilient shrub. Failing to have your shrubs properly trimmed & pruned leads to a series of consequences. The short-term effects of not pruning your shrubs are that they will be bushy, larger, and look messy.

Spirea bushes are hardy in U.S. Department of Agriculture plant hardiness zones 4 to 8. If you live outside of these zones, the bush may suffer from too much heat or too much cold during the harsh winters.

If you live in USDA zones 1 to 3, which includes Alaska and International Falls, Minnesota, the cold harsh winter can kill the bush.