This is the well-known winter jasmine, which starts producing its yellow flowers in late autumn, and continues blooming throughout the winter, and can give a great deal of pleasure during the cold, dark months. It has very long, slender stems, which need support if you don't want them trailing along the ground, rooting as they go, and it is a good idea to cut these hard back from time to time, to keep it from gettly too straggly.