Problems with Magnolia Stellata leaves

Discussion in 'Container Gardening' started by Black Orchid, Sep 14, 2020 at 7:50 PM.

  1. Black Orchid

    Black Orchid Gardener

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    Hello, I have my Magnolia Stellata growing in a large container. Now half of the leaves are yellow and they look as if they are covered with splashes of dirt. A couple of days ago I sprayed the tree with soda +soap in water but it didn't seem to help.
    Any idea what is happening? Thank you.IMG_20200914_182737.jpgIMG_20200914_182706.jpgIMG_20200914_182714.jpgIMG_20200914_182711.jpgIMG_20200914_182700.jpgIMG_20200914_182656.jpgIMG_20200914_182733.jpg
     
  2. pete

    pete Growing a bit of this and a bit of that....

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    Looks like soda/soap burn to me.:biggrin:

    Why the hell did you spray with soda??

    Looks like chlorosis to me.:smile:
     
  3. Black Orchid

    Black Orchid Gardener

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    I thought it was fungus. How to deal with chlorosis?
     
  4. pete

    pete Growing a bit of this and a bit of that....

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    Chlorosis is when a plant that likes acidic conditions is growing in alkaline soil.
    I usually just give a watering with sequestered iron for a quick fix.

    Probably a bit late to have much effect this year.
     
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    • NigelJ

      NigelJ Total Gardener

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      @Black Orchid A couple of things; firstly Magnolia stellata prefers acid to neutral soil/compost so if it's in a pot make sure in ericaceous potting compost that is well drained; if it's in the ground what is the pH? Secondly M stellata is deciduous so it could be simply shutting down for the winter as the days shorten.
      If it was mine and the soil/compost was suitable I would leave until next year and see how it comes back. If in spring the leaves are chlorotic I would treat with Epsom salts (magnesium sulphate) and/or a chelated iron feed like Sequestrene
       
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      • Black Orchid

        Black Orchid Gardener

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        Pete and Nigel, thank you very much for your replies and recommendations.
         
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