Winter flowering Coronilla valentina
There are few flowering frost hardy evergreen shrubs that look this good in December in the UK. Coronilla valentina produces a profusion of sweet smelling yellow flowers in the cold and wet of winter. The Bastard senna 'Citrina' as it is commonly known benefits from growing against a south facing wall. I have grown blue-green leaved variety 'variegata' that has a white cream mixed in the leaves.