The answer to 'frequency of tree trimming' is that most trees should be trimmed every 3-5 years to maintain their health and appearance. Regular trimming helps remove dead or damaged branches, encourages new growth, and keeps the tree's shape looking tidy. The exact frequency will depend on the type of tree, its age, and growing conditions.
For younger or fast-growing trees, more frequent trimming may be needed, such as every 2-3 years. Mature, slow-growing trees can often go 5-7 years between trimmings. It's best to consult a certified arborist to determine the ideal trimming schedule for your specific trees.