Chilling injury to princess flower, Tibouchina urvilleana. Leaves discolored and turned red after this tropical plant was exposed to low temperatures above freezing.

Leaves discolored and turned red after this tropical plant was exposed to low temperatures above freezing. Credit: Laurence R. Costello, UCCE San Francisco-San Mateo
Credit: Laurence R. Costello, UCCE San Francisco-San Mateo