Oleander is a vigorous grower in warm subtropical regions, where it is extensively used as an ornamental plant in parks, along roadsides, and as a windbreak. It will tolerate occasional light frost down to −10 °C (14 °F).,[8] though the leaves may be damaged. The toxicity of Oleander renders it deer-resistant.https://en.wikipedia.org/wiki/Nerium

Source: Oleander