Cardinal Royal Mountain Ash | Sorbus aucuparia \
The 'Cardinal Royal' has been selected for its brilliant red berries, as oppossed to the more typical orange of the species. With so many possibilities in the Sorbus genus, it is difficult to decide which Mountain Ash to use. If a narrow upright form is needed, consider the Cardinal Royal Mountain Ash.
As a small deciduous tree, mountain ash grows 20-40’ tall with a narrow, upright-oval crown, usually rounding and opening with age. It bears compound, odd-pinnate, flat medium green leaves which have 9-15 serrate, oblong-lanceolate leaflets (each leaflet being 2.5” long). In May small, white, 5-petaled flowers (1/3” across) appear on flattened corymbs. Later in the summer these flower clusters give rise to pendant clusters of orange-red berry-like drupes, which are readily consumed by song birds. In the fall leaves turn yellow to a very striking reddish-purple. Best grown in moist, acidic, well-drained soils in full sun.