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Extension > Garden > Diagnose a problem > What's wrong with my plant? > Evergreen Trees and Shrubs > Arborvitae > Inner foliage turns brown

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Arborvitae > Foliage > Inner foliage turns brown

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Seasonal foliage drop

  • Older, inner foliage turns golden brown to rust brown, without any spots
  • Foliage drops, usually in September or October
  • Lost foliage may be two years old or more, depending on species and variety
  • More information on Seasonal needle drop

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