Lydia Broom, Genista lydia, is a low growing shrub with an abundance of intensely yellow flowers that bloom late spring and summer. Its ability to cascade makes it a favorite for hillside and container plantings. It will otherwise grow to a nice mounded form and can provide a sunny patch of color as a groundcover or border. Drought tolerant and virtually carefree, Lydia Broom is a tough little beauty that can be grown in full sun to part shade.