C. Pyracantha, known in gardens as pyracantha, is evergreen and has white flowers, appearing in May, and fine scarlet fruits of the size of a pea which remain on the tree nearly all the winter.
A nice unplanned combination is the berries of a yellow-flowered pyracantha against the bluish berries of an evergreen viburnum.
Pyracantha berries are popular with blackbirds and thrushes and with the blackcap, a small warbler that now winters in some suburban gardens.