is an evergreen shrub or small tree native to western Brazil and eastern Bolivia.
It grows 10-15 feet tall (in cultivation) and blooms most of the year, but heaviest bloom is during the warmer months. In its native habitat, this Tibouchina can get up to 40 foot tall!
The leaves are dark green, 5-6 inches long, with prominent veins running the length of the leaf. The upper leaf surface is glossy with depressed veins and the underside is rough with protruding veins. The stems are four-sided and winged.
Most references list Tibouchina granulosa as hardy for USDA Zones 10B-ll but I know of several specimens happily growing in Zone 9B. They will come back after a hard freeze.