rhododendrons with lichen

Discussion in 'Outdoor Gardening in the Pacific Northwest' started by beale, Apr 7, 2012.

  1. beale

    beale Member

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    Location:
    Surrey bc
    My rhododendrons are about 40 years old and are starting to die out. There is a great deal of lichen on the branches .Is this killing the plant? What is the best way to remove it?
     

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  2. Ron B

    Ron B Paragon of Plants 10 Years

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    Location:
    WA USA (Z8)
    No. The lichen just sits on it. The dying out will be due to something like root rot (water molds) or honey fungus, or being overtaken by evergreen trees.
     
  3. David Payne Terra Nova

    David Payne Terra Nova Active Member

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    Location:
    Port Coquitlam, B.C. Canada
    You can spray with lime sulphur in the dormant season. That will control the moss and lichen growing on trees and shrubs.

    Use a scrub brush and don't damage the bark.
     
    Last edited: Apr 9, 2012
  4. rwinktown

    rwinktown Active Member

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    Location:
    Seattle
    i have heard that spraying vinegar for moss works.. worth a try id say, keep us posted
     

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