1)   Buddleja longiflora This rare evergreen butterfly bush is native to the Serra do Caparao mountains in Brazil. What makes this Buddleja species unique from other species and cultivars is its stunning, long tubular orange flowers that are paired in three-to-five flowered cymes. Its flowers, plus striking white tomentose leaves and small stature (four feet), make this a worthy plant to introduce into the nursery trade.