Q:

When should you prune a Crape Myrtle tree?

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Quick Answer

Prune a crepe myrtle tree at the end of winter or the beginning of spring. Flowers only emerge on new growth and early pruning stimulates the plant to send out new shoots.

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Full Answer

Prune crepe myrtles a second time, after the spring flowers fade. This encourages more flowering and heavy pruning is usually not necessary.

To prune a crepe myrtle, remove branches that rub against or cross each other. Take out dead or diseased looking limbs. Remove the branches closest to the ground, if a tree shape is desired. Do not worry about removing seed heads, as the plant will drop them naturally and continue to bloom.

Remove dead or diseased limbs anytime you find them. Remove excess lateral growth to open the plant during its dormant season. Remove any branches that interfere with people walking under the canopy or that rub against houses or other structures.

If you prefer to keep the crape myrtle as a low, compact shrub, there are two options. One is to replace the larger plant with a smaller variety of crape myrtle and the second is pruning the stems to within 6 inches of the ground annually. If the plant is healthy, this type of severe pruning does not injure it.

Contrary to popular belief, the Clemson Cooperative Extension indicates crape myrtles do not require heavy trimming to encourage blooms. Instead, it recommends choosing the correct type of crape myrtle to minimize the need to prune the plant. They are available in dwarf varieties that reach maturity at 3 to 6 feet and semi-dwarf varieties that reach 7 to 15 feet, eliminating the need to top the plant.

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