The best river birch cultivars are the Heritage and Dura-Heat varieties. The Heritage or "Cully" cultivar was selected in 2002 as the tree of the year by the Society of Municipal Arborists.

Cultivars like ‘Dura Heat’ and ‘Heritage’ are more heat tolerant. For smaller spaces, try ‘Little King’ Fox Valley , a dwarf river birch tree that only grows to 10 to 12 feet tall ...

Seedling river birch is common in the marketplace, and there are at least two superb cultivars available, Heritage and Dura Heat. The Society of Municipal Arborists selected Heritage as the 2002 ...

A fairly fast-growing tree, river birch can reach a height of 70 feet or more. Native throughout the eastern U.S., it is typically found on the banks of rivers and streams as well as in floodplains.