This is a very diverse genus, which includes both mountain ashes and whitebeams. They are all hardy, tough and easy to grow small- to medium-sized trees. The native trees such as S. aucuparia are ideal for more rural positions, whilst the Chinese species such as S. Joseph Rock are first-class small garden trees. Whitebeams are some of the toughest of the ornamental trees grown in the UK - perfect as a small screen or for wildlife-friendly shelter.