Thanks for writing. Your shrub is a vigorous evergreen shrub with fragrant, golden-yellow flowers in late winter and early spring. It can grow 10 feet tall and wide or so and does best in full sun and well-drained soil. In fact, it's very drought tolerant. It's also sometimes sold by the names Cytisus canariensis and Genista fragrans.
---Justin, Senior Garden Editor, BHG.com