jasminum Nudiflorum

Also known as winter jasmine. 2cm (3/4') yellow flowers from early winter to early spring.  Although normally grown on a wall with support, this plant can also be used on a bank to prevent erosion.  A mature height of approximately 3m (10ft) can be expected depending on conditions.  Will perform well in partial shade to full sun.  Prune to shape after blooming or prune hard to encourage fresh growth.  Zone 6