Not all vegetable plants require pruning, but some benefit from it. Pruning can help improve airflow, reduce disease incidence, and increase overall plant productivity. However, it is essential to learn about each specific vegetable's pruning requirements, as some may require different techniques. For instance, certain indeterminate tomato varieties benefit from pruning, while determinate varieties should not be pruned. It is recommended to research and understand the specific pruning needs of your vegetables before proceeding.