Hi, my, what I think is a oncidium sphacelatum, has these brown/black spots on it’s leaves. Any thoughts on what it is or how to treat it? Someone mentioned to me over fertilizing? Also it has never bloomed, I have 3 other clumps of it around my garden in higher light areas and still nothing.
Last edited by Purrl; 12-19-2017 at 09:36 AM..
Reason: Added photos