In order to assist in the preservation of the species and help in the replacement of trees that have been logged in the past, work is going on that aims to better understand the germination, soil and growing conditions required for sub-tropical species such as, Jacarandá do Rio (Rio rosewood) and Indian rosewood.

The assistance of the University of Valladolid is gratefully acknowledged.

The larger Jacarandá saplings can look rather beautiful when grown in the open:

The University of Viçosa, M.G., Brazil has been very active in forestry research and in the propagation of valuable trees; their advice and assistance is gratefully acknowledged.