West Midlands,
United Kingdom 
why are the leaves on my rhodedendrum going yellow?
18 Aug, 2010
West Midlands,
United Kingdom
why are the leaves on my rhodedendrum going yellow?
18 Aug, 2010
Might be magnesium shortage, might be iron shortage, can't say without a photo or more details such as how long have you had the plant, in a pot or in the ground?
19 Aug, 2010