Cultivar Selection
Mandevilla × amoena ‘Alice du Pont’ AGM (Syn: Mandevilla × amabilis): is a popular conservatory climber with large numbers of pink flowers in late summer. It reaches a height of up to 7m (22ft) and can tolerate temperatures of 10-15°C (50-59°F).
M. laxa AGM (M. suaveolens, M. tweediana; Chilean jasmine): The selling point of this mandevilla is its strongly scented flowers of white or creamy-white. It can reach a height of 3-5m (10-15ft). It can survive short periods of temperatures down to 5°C (41°F).
M. boliviensis AGM: At 3-4m (10-13ft), this is the least vigorous of those mentioned here and has white flowers with yellow eyes. Another one for the heated conservatory with minimum temperatures of 10-15°C (50-59°F).
Links
RHS Plant Selector