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Pittosporum Plants

Q.Why Do Some Of My Pittosporum Have Yellow Leaves, And Some Of Those And Some Green Leaves Have Brown (not Orange Or Yellow) Spots.

Zone San Francisco CAlifornia USA 94118 | Hollykaufman added on May 25, 2020 | Answered

I have about 20 plants and this is only happening to some of them. I tried giving some acidic iron, manganese and nitrogen to one but didn’t seem to help.

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Certified GKH Gardening Expert
Answered on May 26, 2020

Unfortunately, your photos did not come through. I am unable to see the damage. Most commonly, this will be overwatering. Just be sure that your soil is lacking in the amendments that you are adding before adding them, as this can throw off the soil balance.

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Answered on June 3, 2020

Hi, thanks so much for your help. Please let me know how I can send you pictures. The pittosporum are actually my neighbors’ plants. He waters twice a week but not for long. I think he should water once a week for a longer time. I still think that there may also be a fungus and/or nutrient issue. Thank you!

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