Chaetogastra grossa, synonym Tibouchina grossa, is a species in the Melastomataceae family that is native to Colombia, Ecuador and Venezuela. It is found between 2400 and 3800 meters in elevation.
Also called "red princess flower" or "carmine princess flower" to differentiate it from "princess flower" which has purple blooms.
Supplied in 1ltr pot, height 20 to 30cm
Photos
CC2.0 A.Bayer and D.Culbert
https://creativecommons.org/licenses/by-sa/2.0/deed.en