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Mahonia Soft Caress

Hello, 
I am not sure what's happening  to mahonia in my friend's  garden, but it's slowly dying despite sitting in a good soil, where as its sister plant is flourishing in my garden. Could it be that his garden is near a beach and sandy soil  does not  go well with mahonia? My garden is 100  miles  from the beach.

Posts

  • Balgay.HillBalgay.Hill Posts: 1,089
    edited October 2023
    The weeds, grass and creeping phlox( i think) surrounding it won't help. He needs to clear a space around it, as all the other stuff will be taking water and nutrients away from it.
    Sunny Dundee
  • ObelixxObelixx Posts: 30,090
    It needs to be planted in moist butwell-drianed soil and out of full sun.  Its natural home is forest floor and woodland edge in dappled shade.

    I suggest your friend clears all the plants and grass around it to a diametre of 1 metre and then waters itw ell with rainwater and gives it a mulch of leaf mold to retain the moisture and nourish the soil.

    If that's not possible, they should condiser moving it into a large enough pot with a 50/50 mix of ericaceous John Innes no 3 type compost and Multi purpose compost to simulate woodland planting conditions.   The pot then needs to be placed in shade while the plant recovers.  They should water it well first, leave it for an hour to soak then dig it up with as much of the rootball as possible and plant it at the same depth as before.
    Vendée - 20kms from Atlantic coast.
    "The price good men (and women) pay for indifference to public affairs is to be ruled by evil men (and women)."
    Plato
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