A: The sago palm appears to be deficient in magnesium. It may be the soil, in which the cycad is planted, is also magnesium deficient. It might be beneficial to add magnesium sulfate around the base of the cycad and throughout the canopy area. Pull any mulch from around the base of the cycad, add the supplement, irrigate to get the product to the root area and place the mulch back. Remember, no tree, shrub, palm or cycad should have mulch piled up against the base of the trunk. This inappropriate practice can cause fungal decay along the trunk tissue, permanently damaging the plant. Keep an area, about a shovel’s width, around the base of any tree or shrub free of mulch.

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