|why are my 10 year healthy sago palms turning yellow?
|Answer from NGA
June 20, 2010
|It's really difficult to diagnose a plant problem without seeing the plant and knowing its history. However, if all the sagos are turning yellow, I'd suspect an iron deficiency. It is most apparent in the summer months but can happen at any time. Iron Sulfate (Ironite is one brand) will help them green up again. Apply in amounts as recommended on the package. It will take 30-90 days before you see changes in your sago palms.
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