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Azalea chlorotic
Persephone wrote:
The soil in this area is adobe (basic), but the people before me mulched regularly, as have I, so I suspectthat over many decades of modification the PH has become either acidic, or at least neutral. I should have it tested some time just out of curiousity, though I don't usually have problems like this. Neutral won't work. It must be acidic. A pH of 5 to 6.5 is necessary. I already have some Miracle-Gro; it probably won't kill the plant to get a moderate application. Miracle-Gro does more harm than good. It is a soluble nitrogen fertilizer. Your plant is stressed and feeding it nitrogen is not a wise move. The iron and sulfur are the right approach. Usually in alkaline soil such as yours the only easy way to grow azaleas is in a raised bed. Then the alkalinity of the surrounding soil doesn't affect the azaleas. The raised bed only needs to be 8" to 12" high. Then use a good acidic garden soil. If you want to raise acid loving plants like azaleas, you will have to meet them half way by providing acidic soil. -- Pardon my spam deterrent; send email to Visit my Rhododendron and Azalea web pages at: http://rhodyman.net/rahome.html Also visit the Rhododendron and Azalea Bookstore at: http://rhodyman.net/rabooks.html Cheers, Steve Henning in Reading, PA USA Zone 6 |
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