The answer to 'which is better shrub or' is that shrubs are generally better suited for most residential landscaping needs compared to trees. Shrubs offer several advantages over trees, including lower maintenance requirements, more versatility in terms of size and shape, and typically lower costs.
Shrubs are smaller and take up less space than trees, making them a better option for many homeowners with limited yard space. They are also easier to prune and maintain, and can be shaped to fit specific design needs. Shrubs also tend to be less expensive to purchase and install than full-size trees.