The jacaranda is a tree originally from Mexico. It is deciduous, and is covered in purple flowers in spring. They survive well in areas with long, hot summers. Jacarandas are frost sensitive when they are young, but frost hardy when they are older.
Jasmine is a group of shrubs and climbing plants, many of which have strongly scented flowers. They are a popular ornamental garden plant. The flowers smell strongest at night. The jasmine most people are familiar with is common jasmine, which is a climbing variety.