This is an excellent Tibouchina that has a shrubby stature (ht 1.5-2 m) without being too tall or too low, and which flowers much of the year. The blooms are deep purple, with a white centre and white stamens. The heaviest flowering is in autumn, when the whole shrub is smothered in bloom. The spent flowers can be trimmed back and the shrub given a heavier prune in late winter. It grows best in full sun but will still do reasonably well in semi-shade. Give it a reasonable amount of water and occasional fertiliser to support the extended flowering period.
It forms an excellent background to lower plantings, such as Salvia and Dahlia, which are in bloom at the same time. The leaves are smaller than most other Tibouchina types, and are attractively veined.