Shop Products
Houzz Logo Print
carney_gw

Black Soot on Gardenia

carney
17 years ago

My gardenia plant, growing in the backyard, is covered with something like tiny black soot from a chimeny. However, as I don't have a chimeny, I guess I can't blame the problem to any chimeny I don't have. None of my immediate nabors has any chimeny either. What is it then that's causing the black soot on the leaves? Can it be some kind of plant disease?