Pruning lemon beebalm is key to encourage vigorous growth and maintain a desirable shape. Removing old or overgrown stems boosts vitality and ensures a neat, attractive form, optimizing the plant's health and aesthetic appeal.

Pruning lemon beebalm in early spring is beneficial as it prepares the plant for a robust growing season by removing any dead or damaged stems, which could hamper new growth. This timing allows gardeners to shape the plant and encourage a more bushy and floriferous habit. Additionally, early spring pruning minimizes the chance of pruning off new shoots that will bear flowers. Late summer pruning, done after lemon beebalm has finished its bloom cycle, ensures that the gardener does not inadvertently remove the current season's flowers, which are vital for pollinators. This late pruning helps maintain the plant's shape, control its size, and prevent seeding, if desired. It is also a good time to deadhead or remove spent blooms to promote a tentative second bloom and reduce the chance of disease. Moreover, pruning during these seasons corresponds with the natural dormancy and reduced stress periods for the plant, thereby promoting optimal health and vigorous growth in the following season.