Narrow trees, or columnar trees, are defined by their slender, upright growth, making them perfect for spaces with limited horizontal spread. Valued in urban landscapes and gardens, they provide vertical interest and natural privacy without overwhelming smaller areas. Varieties like the Lombardy poplar and pencil juniper offer tall, narrow profiles that enhance property lines and driveways. Besides their beauty, these trees also function as windbreaks and noise barriers, requiring less pruning and maintenance compared to broader trees, making them a practical choice for modern landscaping.