The plant in the photo is Oleander. Oleander (Nerium oleander), is a evergreen shrub or small tree in the dogbane family Apocynaceae. It is the only species currently classified in the genus Nerium. It is native to a broad area from Morocco and Portugal eastward through the Mediterranean region and southern Asia to Yunnan in southern parts of China.
Oleander grows well in warm subtropical regions, where it is extensively used as an ornamental plant in landscapes, parks, and along roadsides. It is drought tolerant and will tolerate occasional light frost down to -10°C. Oleander is one of the most poisonous plants and contains numerous toxic compounds, many of which can be deadly to people, especially young children. (Wikipedia)