Best of the bunch.

SORBUS (ROWAN) Commonly known as mountain ash or whitebeam, this wonderful tree provides all-year interest, producing large heads of pink-flushed flowers in late spring which then develop into beautiful red or white fruits in autumn. Birds don't like the white berries of S cashmiriana, the Kashmir, so they are left hanging, adding interest when much else has faded and long after the leaves have fallen.

If you want a columnar specimen, S aucuparia 'Fastigiata' may fit the bill, reaching a height of 6m and producing clusters of ripe red berries.

The trees prefer cool, moist situations as they become prone to fireblight when under stress due to drought conditions.