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Yellowing Rhododendrons

Novice23Novice23 Posts: 182
in Problem solving

I have several Rhodos, one of which has yellowing leaves, which are dropping.  Those at the top are fine, and the buds for next year look quite happy.  But the lower leaves are dropping.  I have feed in with sequestrene and a Rhodo feed, but is there anything else I can do?    I have researched the problems, but am confused as to what I should do.  Any help would be very welcome, please...

Posts

  • ObelixxObelixx Posts: 29,160

    Could be magnesium deficiency.  Try a foliar feed with Epsom salts diluted at a rate of 15ml of salts to 5 litres of water.  Pour over all the leaves using the rose on your watering can.

    Vendée - 20kms from Atlantic coast.
    "We don't stop playing because we grow old; we grow old because we stop playing." - George Bernard Shaw
  • FairygirlFairygirl Posts: 52,214

    obelixx -  Don't usually have an issue with rhodies etc in the ground here as the soil suits them, but my Fatsia looks a bit chlorotic as it's in a pot just now, albeit a big one. Will that work for it too?

    Sorry to hijack the thread a bit Novice image 

    It's a place where beautiful isn't enough of a word....



    I live in west central Scotland - not where that photo is...
  • ObelixxObelixx Posts: 29,160

    Yes, it works for any chlorotic plant.

    Vendée - 20kms from Atlantic coast.
    "We don't stop playing because we grow old; we grow old because we stop playing." - George Bernard Shaw
  • FairygirlFairygirl Posts: 52,214

    Thanks  obelixx - I thought so but just wanted to make sure. I knew you'd know   image

    It's a place where beautiful isn't enough of a word....



    I live in west central Scotland - not where that photo is...
  • Tropical SamTropical Sam Posts: 1,488

    Agree with Epsom salts but would also add in an ericacious feed on top. Rhoddies are acid loving (as are Fatsia). Both will do fine in neutral soil but can go pale and lose leaves if they use up all nutrients and get too dry. Fatsia leaves are also paler the more sun they get.

  • FairygirlFairygirl Posts: 52,214

    I've always had my Fatsias in the ground - no issues there as we have neutral/acid soil and Rhodies, Camellias etc grow like weeds - plenty of soft Scottish rain here too. This one is going into the ground but not at the moment and it's just looking a little sad. Site is perfect, shady and only some late afternoon sun.  image

    It's a place where beautiful isn't enough of a word....



    I live in west central Scotland - not where that photo is...
  • Novice23Novice23 Posts: 182

    Thanks for the help, I will try the Epsom Salts mix.  I have given then all Sequestered (?) Iron and ericacious feed over the summer, but perhaps not enough.  

    I also have a Fatsia which is very happy and flowered last year, well at least that is what I assume the large alien looking things on the top were, but that lives in a shady part of the garden. It is about five foot tall, not with just one or two strong stems and masses of leaves, but would it respond to puning at the top to make it bushier rather than taller?  I would hate to kill it off by doing the wrong thing.

     

     

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