About 2 months ago I noticed black spot on my climbing rose. I trimmed it back and removed the leaves then sprayed it with rose fungicide. Here it is 2 months later the black spot has come back but worse is that it has never blossomed this summer. Does anyone know what might be causing this? It has always bloomed perfectly in the past. The growth has not slowed down at all as you might be able to see. Thank you!
