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Q: Hi Ken, I listen to your show. My problem is my magnolia and my rhododendrons. Both have leaves turning yellow can you help?
A: Excessive water through last summer and winter has caused many problems with plants like magnolia and camelia and I am hoping that the excess water will not cause the roots to die and therefore result in the death of the tree. So, on a cheerful note lets look on the positive side, which is that the plant is lacking iron and I would suggest that you water with an acid feed ideally for rhododendron and ericaceous plants. Another good method is to use a hose end feeder with an acid feed and spray all over the leaves. Do not do this during sunny weather. This will get the nutrients into the plant quicker.
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