[Argyranthemum frutescens] Marguerite Daisy or Paris daisy Asteraceae:
White flowers on plants that grow 3 feet or so tall. Perennials for frost free locations, can be grown in a bright sun room or greenhouse over winter in colder areas. Chrysanthemum frutescens is a subshrub and can be grown into a 'tree-like' plant as pictured above. Best is soils with good drainage that are on the dry side, under wet conditions plants will be shorter lived.
Native to the Canary Islands.