Beginner Gardening: Rose nutrient deficiency?, 4 by weedsfree

weedsfree wrote:
I have researched what may be causing this and it seems that it may either be a iron deficiency or a ph problem. I think it may be an iron deficiency because the new growth is stunted as you can see. From what I read, a ph problem can cause like symptoms. Can anyone give me some help and tell me what you think? By the way, it is affecting only half the rose but slowly spreading. I noticed that some of the lower canes on the other half have lighter green leaves.