How to Properly Prune Crepe Myrtles

Pruning your crepe myrtles can be a task, but it is not as daunting as you might think. Over the years, I have used loping shears for smaller jobs and an A-bow saw for larger sections that have died out. However, the key word here is 'prune' rather than 'trim.' Pruning involves strategic cutting to promote healthy growth and enhance the appearance of your crepe myrtles.

Initial Pruning Steps

When you start pruning your crepe myrtle, the first step is to remove any dead wood. This should be taken all the way back to the living branch. Next, remove any branches that cross from one side of the plant to the other or that are growing inward toward the center of the tree. This process will help maintain the health and structure of your plant.

When and How to Prune

Crepe myrtles do not necessarily need to be pruned every year. In fact, it is perfectly acceptable to snip off the dead flower stalks after the seed pods have opened. The plant will thrive even without regular pruning. However, if you do decide to prune, it is essential to avoid cutting into the wood.

Many people make the mistake of chopping the tops off their crepe myrtles, which can lead to an unsightly and unhealthy plant. The term used by Master Gardeners for this practice is "crepe murder." Topping a crepe myrtle or any other tree is always wrong because it creates stubs. Since the end of the stub has no leaves to keep it alive, it will die. Trees and shrubs can heal a wound if there is living bark above, below, and on both sides of the wound. There is no living bark above a stub, so the cut can never heal, inviting rot and leading to further health problems. Topping trees kills trees.

If the plant must be pruned back, it is only advisable to remove less than 1/3 of the total mass of the shrub or tree. Make sure to cut the branches close to the trunk so the wounds can heal properly. In essence, never leave stubs. It is best to trim your crepe myrtles in the winter when the plant is dormant to prevent any unnecessary stress during the growing season.

Plant Selection for Best Results

If your crepe myrtle has simply become too large for the space it occupies, it might be better to remove it and replace it with a smaller variety. This applies to all large plants. When selecting shrubs or trees, always consider their expected height at maturity. Choosing the right plant to fit the space means less maintenance work for you and healthier plants.

Conclusion

Pruning your crepe myrtles is a low-maintenance task that can significantly enhance the beauty and health of your plants. By following the proper techniques and knowing when not to prune, you can keep your crepe myrtles looking their best for years to come.

Keywords: crepe myrtle, pruning, trimming