Care Of Azaleas - Knowledgebase Question

Poquoson, VA
Avatar for chowlett
Question by chowlett
April 15, 1998
My azalea plants leaves are turning yellow and the plants are not blooming well this year. They are many years old and have done very well the past 5 years I have lived in the house. Any tips for proper care of these normally gorgeous shrubs?

Answer from NGA
April 15, 1998
Good be a few things but it really sounds like an iron deficiency (had the same problem with mine recently). A major sign of this is chlorosis (yellowing of the leaves), and azaleas have a pretty big demand for iron. They may have, over the years, depleted the soil of it's iron, or, for some reason, they are no longer to absorb it from the soil (pH too high, too low, etc.). In any event, I would recommend you have your soil tested. Contact your County Extension Service for details on having a test performed. You can find the phone number in the blue pages of your phone book (I would have looked it up for you but you didn't list your county). Let your agent know what sort of problems you are having, and that you suspect an iron deficiency. When the results come back the agent can let you know if that is the problem (and if not what is) and can offer you solutions. Good Luck!

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