The Prostanthera and Westringia Study Group is one of over 20 such Groups whose aims are to further knowledge about the cultivation, propagation and conservation of specific Australian plants. The Prostanthera and Westringia Study Group has been in operation for over 20 years and produces informative newsletters describing members experiences in growing and propagating mint bushes and westringias in various parts of Australia and overseas as well as documenting botanical changes in the genus resulting from research carried out in a number of scientific institutions.

Members of the Group are mainly keen amateurs with no formal horticultural or botanical knowledge, although a number of professionals in those fields also participate. As in all study groups, the members' work is mainly carried out in their own homes and gardens and in their own spare time.

The Study Group launched its own web site in August 2003.